zcorp series zscanner 800 user guide manual en

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    Table of ContentsLaser Warning ........................................................................................................................... 1User License............................................................................................................................... 1Whats New in ZScan v.2 ......................................................................................................... 3

    System Overview .......................................................................................................................... 5Minimal System Requirements ............................................................................................... 5System Spec ifications .............................................................................................................. 5Scanner General Care ............................................................................................................ 5Software Presentation ............................................................................................................. 6

    Getting Started ............................................................................................................................. 9Software installation................................................................................................................. 9Connecting the scanner ......................................................................................................12Starting ZScan for the first time ............................................................................................. 13

    ZScan ............................................................................................................................................ 14General Interface .................................................................................................................. 14Main Interface Description ...................................................................................................15Configure ZScan .....................................................................................................................26Add Reference ....................................................................................................................... 27Sensor C alibration .................................................................................................................. 28Sensor Configuration ............................................................................................................. 29Sensor Manager ..................................................................................................................... 30Software Uninstallation .......................................................................................................... 31Help .......................................................................................................................................... 32

    Scanning Tec hniques ................................................................................................................. 33Object Preparation ................................................................................................................ 33Importing Positioning Features .............................................................................................34Using Sensor Configuration ...................................................................................................34Calibrate Scanner ..................................................................................................................35Proper Scanning Distance ....................................................................................................36Editing the Scan ..................................................................................................................... 37Miscellaneous ..............................................................................................................................41Troubleshooting ...................................................................................................................... 41

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    1

    Laser Warning

    WARNING: Class II Laser product. Avoid long-term viewing ofdirect laser radiation. Prolonged staring into the beam (direct or

    reflected) can damage the retina.

    This system uses a class II laser which is considered eye and skin safe but can cause eyedamage if exposed directly for a extended time. Natural human reflexes will normallymake the subject blink or look away before any damage is inflicted to the eyes. Any useother than those specified in this document could result in hazardous laser radiationexposure.

    Use the following usage precautions:

    Never stare into the beam, neither direc tly nor from a mirror-like surface. Humanskin is not considered as a reflective surface.

    MEDICAL USAG E: warn subjec ts not to stare into the beam. Subjects undereffect of any medication and young children could possibly have theirnatural aversion reflex affected and it may be advised to wear ablindfold.

    The ZScanner 800 should NEVER be opened for any reason as there are nointernal adjustments. In case of a malfunction, contact the manufacturer ordistributor.

    CAUTION NOTES

    PLEASE READ THE COMPLETE MANUAL BEFORE USE. OPERATING YOUR ZScanner 800 LASERSCANNER USING PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT INHAZARDOUS RADIATION EXPOSURE.

    AVOID DIRECT EYE CONTACT WITH THE LASER BEAM.

    ELECTROSTATIC DISCHARGES COULD DISCONNECT THE DEVICE.

    DISREGARDING ANY OF THE RULES AND CARE RECOMMENDATION INCLUDED IN THISMANUAL MAY VOID THE SYSTEM WARRANTY.

    Please read and follow all WARNING statements throughout this manual

    User License

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    The ZScanner 800 system and the ZScan software are provided ac cording to a licenseagreement. Any partial or complete copying of this software without properauthorization is prohibited. Distribution of the software without a written authorizationfrom ZCorp is forbidden. The Purchaser shall not reproduce or duplica te, dissemble,decompile, reverse engineer, sell, transfer or assign, in any manner the Scanner, theSoftware and the System. ZScanner 800 is a trademark of ZCorp

    Copyright 2002 - 2008 ZCorp All rights reserved.

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    Whats New in ZScan v.2

    Support for all ZCorp scanners

    ZScan v.2 remains the unique platform for the complete ZScanner line-up ofscanners

    Automatic Multiresolution

    The new Decimate Triangles slider makes it possible to keep a higher resolutionwhen needed, while keeping larger triangles on flat surfaces

    Produces lighter STL filesDelete Facets Permanently

    It is now possible to delete facets permanently, not just send them in the recyclebin Faster load times, as ZScan won't have to process the deleted facets

    Improvements to the 3D Viewer

    New Lock Zoom function lets you zoom on particular details while scanning Redesigned live surface rendering Enhanced lighting and shading Quick dynamic rendering mode

    Customize your ZScan experience

    5 different 3D viewer control modes Save scan parametersand keep them as default Change ZScan's colorsto your will

    Enhanced Surface Reconstruction

    Improved manual multiresolution Improved surface boundariesrecognition and reconstruction Optimized surface reconstruction (quickerStop Scan and Load Session) Redesigned spike filter to improve details/noise differentiation Volume positioncan now be defined manually (position and angle) Redesigned Optimize Surface algorithm for more efficiency

    Improved Positioning

    Improved positioning model optimization New high accuracy positioning targets

    Edition Mode Enhancements

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    Immediate on-selection activation for selection tools Confirmations required when exiting with ac tive selec tion

    New Powerful Scanner Manager

    Update, add or delete a scanner safely in seconds Access scanners information within ZScan

    New Powerful Installer

    No need to uninstall ZScan when upgrading Automatic Geomagic detection (to install plug-in) Now possible to keep scanner files when uninstalling

    Improved Compatibility

    Compatible with all major operating systems Windows XP 32 bits Windows Vista 32 bits Windows Vista 64 bits

    In 64 bits, no more memory limitand improved performance (compared to similarhardware running in 32 bits)

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    System Overview

    Minimal System Requirements

    Technical spec ifications Intel Dual Core Processor Dedicated graphic card with a minimum of 128 Mb on-board memory 1 GB RAM (2 GB recommended) CD-Rom drive (to install from CD) PCMCIA slot Access to a user account with Administrators privileges during installation only

    Supported Operating Systems Windows Vista Business 32 bits Windows Vista Business 64 bits Windows XP Professional SP2 32 bits

    System Specifications

    The ZScanner 800 system includes the following components:

    ZScanner 800 scanner Ergonomic stand Reflec tive targets Calibration verification plate Carry-on case Firewire PCMCIA card Firewire cable Firewire power supply ZScan software Instruction manual (pdf) Laptop computer (optional)

    Scanner General CareThe ZScanner 800 contains optical prec ision parts and must be handled with care toavoid damage to the components or the calibration system. For transportation, thesystem must be placed in the carry-on case provided with the kit. The system must bestored in a dry, dust-free place and kept at room temperature.

    The scanner must be kept on its support or in its carrying case when not used.

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    Clean the interference filters with a c lean and dry cloth. The ideal is a lens or glassescleaning-cloth.

    Never open any of the systems components. By doing so, theuser may inadvertently damage the system and the ZScanner800 will have to be recalibrated. Only ZCorp staff or authorized

    technicians are qualified to work on the scanner. Nomaintenance is required by the end user. If the system shows

    any troubles or malfunctions, it must be sent back to ZCorp or toan authorized reseller.

    Unauthorized manipulations on the scanner will void thewarranty.

    Software Presentation

    Positioning Features

    In order to position itself in space, the ZScanner 800creates a positioning model from the positioning targets.At all times, the scanner needs to be able to see at least 4positioning features. These features are the positioningtargets that were placed either on or around the objectbefore scanning.

    There are two different ways to acquire these targets:either by using the Scan Featuresmode or by detecting

    features interactively in the Scan Surface mode. Theformer enables the acquisition of the targets only, whilethe latter concurrently acquires the targets and the surface of the object. The resultingmodel, whether it has been acquired in Scan Surface or Scan Featuresmode, can thenbe exported for later use.

    During scanning, if a target is detected more than once, the ZScanner 800 will updatethe position of the target with the new detected position, therefore increasing theprecision of the positioning model during the scan. The user can also choose to activateor deactivate the use of a positioning feature in the positioning model in order toexclude that target from the calculation of the sensor's position or orientation.

    ReferencesTo represent the space in which the object is positioned,the scanner needs a 3D coordinate system. By default, 3Ddata is represented in the "Sensor Reference Frame",whose origin is set to be the scanner's position when theuser starts to scan.

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    The user can change the coordinates system either automatically with the auto-detected reference model, or manually by creating another reference with the AddReference tool. This wizard allows the c reation of references from existing features in thescan.

    Each reference available in the selected scan can be renamed, deleted or set to be

    used as the origin of a new reference frame. Exported features or facets will then belocated in that reference frame.

    Surface and Volume

    Scanning with the ZScanner 800 takes place in a virtualcube called Scanning Volume, which is represented by abounding box on the screen. In order to be represented,the object has to be located in that volume. It is possible

    to adjust the size and position of that volume through theSurface view. It is also possible to set the resolution of thevolume in order to match the level of detail needed onthe object scanned.

    Facets, Edition and Multi-resolution

    Facets represent the final output of the scanner which isstructured as a continuous mesh of triangles. Contrary tomany scanners, the ZScanner 800 does not rely on a pointcloud that is later triangulated but generates direc tly asurface.

    Prior to generating the final result, it is possible to edit thescan inside ZScan. However, ZScan being mainly anacquisition software, the editing tools are not meant toreplace those offered in post-processing software, but are

    rather aimed to improve the facets to produce a cleanerresult.

    The software allows to remove facets and to increase or decrease resolution on selectedparts of the object. For example, the user may want to get a higher resolution on aspecific detail on the surface to see its edges more cleanly, or remove trianglesbelonging to the background. Those deleted facets are transferred into the Recycle Binand can always be restored later.

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    The final file may be saved as a .STL file, which is a standard file used by most post-processing software.

    File Types

    ZScan uses different file types to store the result of its actions.

    .CLF License file that makes ZScan functiona l. A specific license isneeded for each ZScanner 800.

    .CST Configuration file that contains data specific to eachZScanner 800. The file contains calibration parameters andinformation needed to create a new session

    .CSF Session file containing all the data related to a session, such asthe scans, the resolution parameters, the deleted fac ets, etc.

    .STL File format used to export facets.

    .TXT Text file used when exporting the positioning modelcontaining all positioning targets.

    .OBC File produced by AICON 3D Systems software that can beused to import a positioning model acquired byphotogrammetry.

    General Considerations

    ZScan is a software that takes advantage of modern computer architecture. Almost alloperations are multi-threaded to take advantage of the dual-core processors in thecomputers.

    Due to constraints in Windows, there is a limit to the amount of memory that can beallocated to a single program. That limit is set to 1.4 Go in Windows XP and to 1.6 Go inWindows Vista 32 bits. In Vista 64 bits, the limit is function to the total amount of memoryavailable in the computer. For a computer with 4 Go of RAM, the limit is set to 3.7 Go.

    If you go past these limits, ZScan will display an error message prompting you to reducethe resolution or to increase the volume. It is important to note that the data in thesession is not lost. It will reappear when the volume is changed back to a morereasonable setting. It is also possible (and recommended!) to save the session at thatpoint.

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    Getting Started

    Software installation

    If the computer was purchased from ZCorp with the ZScanner 800 scanner, the softwareis already installed. Follow these instructions only to install the software on anothercomputer.

    First of all, verify that the computer meets all requirements. Note that Administratorsprivileges are required to complete the installation correctly.

    Insert the ZScan CD-ROM in the drive to launch the installation proc ess. If the installationdoes not start automatically, you can browse to the contents of the CD and double-clickon Setup.exe to launch the Installation application manually. The setup process will thenbe launched as depicted in the following steps.

    Click on Next >to proceed with the installation procedure.

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    The user will be prompted to enter his name and the organization for which the softwareis installed. It is recommended to install the software for all users, so everyone on themachine has access to the software. When all these fields are correctly filled, click onNext >to c ontinue.

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    The user is then asked to select the components to install along with ZScan. By default,the files for ZScan and the relevant sensor are selected. Also, if versions of Geomagic areinstalled, the plugins for this software will be installed. It is possible to select not to installone of those components by c licking on the icon next to its name. However, apart fromthe Geomagic plugins, all those components are mandatory.

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    Once the fields are set correctly, it is possible to launch the installation process by clickingon Install. ZScan will try to install drivers for the scanner and you may receive a warningmessage. Please accept the driver installation to complete the installation proc edurecorrectly.

    Once the installation procedure is complete, the user has the option to launch the SensorManager. This tool allows to quickly import the c onfiguration and license files. EveryZScanner 800 sensor has its own configuration file containing the calibration parameters.It has also its own license file which is required to use the device with the ZScanapplication. This tool is also accessible through the main ZScan interface and is explainedin details later in this manual.

    ZScan is now correctly installed. It is possible to launch the application by double-clickingon the icon located on the desktop or by navigating in the Windows Start Menu.

    Connecting the scanner

    Once the software is correctly installed, the scanner may be connec ted to thecomputer. The following steps show you how to connect and store your ZScanner 800.Also make sure that the working environment is clutter-free and that the cables are safelyplac ed. When in use, it should always be placed safely on its stand in order to preventaccidents to the scanner. When not in use, the scanner should always be stored in itscase to avoid accidents and decalibration.

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    First, plug the PCMC IA card in the slot in the dedicated slot on the computer. Make sureto plug the power supply cable and the FireWire cable in the card as shown in the figurebelow. Depending on the type of FireWire cable which is included with your scanner, theconnec tions will be either of the two possibilities depicted in the figure below. Accordingto your type of FireWire cable, the power supply will either be plugged in directly in thecable or in the PCMC IA card itself.

    The other end of the power supply cable must be plugged into a power outlet, and theother end of the FireWire cable must be plugged into the ZScanner 800.

    The scanner is now correctly connected and is ready to use. Place the scanner safely on

    its stand between manipulations.

    Starting ZScan for the first time

    After the scanner is correctly connected, you are ready to launch ZScan by clicking onthe icon that was created on your desktop or via Start Menu>Programs>ZScan>StartZScan.

    Your system is now ready forthe ac quisition. You can hitthe Record Scan button to

    start scanning. However, it ishighly recommended toread this guide in full inorder to learn how ZScanoperates.

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    ZScan

    General Interface

    When opening ZScan, the user first sees the main interface shown above. It is subdividedin 5 main parts:

    1. Menu2. Toolbar3. Scan Tree4. Expanding Panels5. 3D Viewer

    The Menuand the Toolbarare complementary to each other. The toolbar offers the mainfunctions to the user, while some more advanced functions are located only in themenu. Each of these functions will be described and located later.

    The Scan Tree allows the user to select the mode under which the software operates. Bydefault, the scan mode is selected, in which the user is shown the surface and thepositioning targets. The other modes available are features, reference, surface, facetsand recycle bin modes. By selecting the corresponding scan tree node, the functionsrelevant to the current context are displayed to the user. These functions will bedescribed and located further on in this chapter.

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    The Expanding Panelsare used to convey relevant information to the user about thecurrent situation of the scan and to propose advanced functions to the user whereapplicable. The displayed panels once again depend on the mode chosen in the scantree.

    The 3D Viewerpresents the result of the scan in real-time. Depending on the node

    selected in the scan tree, the viewer can display the positioning features, the surface orthe facets.

    Status Bar

    The Status Bar located at the bottom of the screen displays different values concerningthe current state of the software. The figure below illustrates the different information thatcan be displayed in the status bar.

    The current status of the scanner can take 3 different values:

    Ready: The scanner is ready to start the acquisition process. Recording: The scanner is currently in the acquisition process. Press the trigger to

    acquire data. Disabled: The software is currently doing computation and is unable to acquire

    any data.

    The number of images ac quired in the current scan is reset each time the user hits theRecord Scan button. The frame rate is displayed at the extreme right of the screen andshould typica lly be around 15 frames per second.

    When in the surface and editing modes, the status bar also displays the current 3D viewercontrols available to the user. These depend on the mouse mode defined in the optionsand detailed later in this manual.

    Main Interface Description

    3D Viewer controls

    The 3D Viewer is the part of the ZScan interfac e where the 3D model is located.Interaction with the 3D model is made through mouse actions in that part of the window.

    The default mouse movements are summarized in the table below. Depending on thecurrent mode selected in the software, the mouse buttons will have different actions.

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    MouseAction

    Active Mode Effect

    Move ObjectMode

    Click and hold to rotate the object

    Move Volume

    Mode

    Click and hold to rotate the volume bounding

    box

    Selection Mode Click and hold to draw a selection box

    All modesOpens a contextual menu containing display

    options and commonly used tools

    Move ObjectMode

    Click both buttons to rotate the object on theoptical axis around the current view point

    Move Volume

    Mode

    Click both buttons to rotate the volumebounding box around the optical axis of the

    current view point

    Move ObjectMode

    Click and hold the button to translate theobject

    Move VolumeMode

    Click and hold to translate the volumebounding box

    All Modes Scroll up or down to zoom in or out

    It is now possible to select between 5 different mouse configurations. The main actionsavailable in each mode a re summarized in the table below, but at a ll times, the possiblemouse actions are listed in the status bar at the bottom of the screen. It is possible tochange the mouse mode in the c onfiguration dialog ( Configure | Options). Thesemodes replicate the mouse configurations available in the leading 3D modeling softwareavailable today.

    Mode 1 Mode 2 Mode 3

    Left button: RotateLeft + Right button: Spin

    Middle button: Pan

    Mouse Wheel: Zoom

    Middle button: RotateAlt + Middle button: Pan

    Shift + Middle button: Zoom

    Mouse wheel: Zoom

    Middle button: PanMiddle button + Left button: RotateMiddle button + Left button clicked

    and released: ZoomMouse Wheel: Zoom

    Mode 4 Mode 5

    Left button: RotateShift + Right button: Spin

    Middle button: PanRight button: Zoom

    Shift + middle button: Zoom on region

    Left button: RotateCtrl + Left button: Pan

    Shift + Left button: Zoom

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    When in Move Volume mode, hold down the Ctrlkey on thekeyboard to use the mouse to move the object instead of the

    volume

    3D Viewer contextual menu

    In all modes, a right click in the 3D Viewer will open a contextual menu with relevantfunctions for the user. Once again, the contents of this menu depends on the currentmode of the scan tree.

    At all times, the following three functions will be available.

    Reset Viewpointwill move the viewpoint back to its original position. It is a quickway to get the whole piece in the 3D Viewer when zoomed on a detail orsomehow lost the model from the current view.

    Lock Zoom allows the user to set the level of zoom on the piece and still allow theviewer to follow the movements of the scanner during the scan. This function isuseful when scanning on small details on a part. The default value is unchecked.

    Lock Viewpointallows the user to lock the viewer in its current position. From thatmoment, it will no longer move automatically when scanning. However, you canzoom and rotate at will and the viewer will remain static while the acquisition is inprogress. This can be useful when trying to acquire data on small details on apart. The default value is unchecked.

    Show Volume Bounding Box controls the display of the volume bounding box. Ifunchecked, the bounding box will no longer be displayed. In its default position,the bounding box will be shown.

    Change Display Colorsgives the user the choice of the colors used in the 3DViewer as it is shown in the following figure. Change will prompt the user to selecta new color and Restore will revert the color to the one used before opening thedialog. The Defaultbutton will revert the colors to their factory value. ZScan 2.0offers to parameter all possible colors in the 3D Viewer, so you can customize the

    scanning experience to your needs.

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    Toolbar Icon Menu Action

    File | New SessionStart a new session. During this step, thesensor is reinitialized.

    File | Open Session Open an existing session file (.C SF). Thecurrent session will be replaced.

    File | Save Session Save the current session (.C SF)

    Scan | Add Scan Add a scan to the current session.

    Scan | RemoveScan

    Remove the current scan from the session.

    Scan | ChangeScan Mode

    Select the scan mode.In Scan Features, the ZScanner 800 will onlyacquire targets. In ScanSurface, thefeatures and the surface will be acquiredsimultaneously.

    Scan | RecordScan

    Start data acquisition.

    Scan | Stop Scan Stop data acquisition.

    Scan | ResetScan

    Reset the current scan. The scanner and thescanning parameters will not be reinitializedas in New Session.

    Features Mode

    When selecting the Positioning Featuresmode in the Scan Tree,the following functions become available. All of these

    functions allow the user to interact with the positioning modelused by the ZScanner 800.

    When expanded, this mode contains all the positioningfeatures in the current model. Each target can be selected,activated, deactivated or deleted. When a feature is selectedin the Scan Tree, it will turn yellow in the 3D viewer. It is possible

    to select multiple features in the scan tree by using Ctrl(for non-consecutive features) orShift(for consecutive features).

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    While in Features mode, only the positioning features are shown in the 3D viewer.

    Features Mode Functions

    Toolbar Icon Location Action

    File | OpenFeatures

    Open a positioning modelpreviously acquired

    Edit| CopyPositioningFeatures

    Copy the current positioningmodel to a new scan in thesame session.

    File | SavePositioningFeatures

    Save the current positioningmodel (.TXT or .OBC)

    Positioning

    FeaturesParametersexpanding

    panel

    Performs an optimization ofthe positioning model in orderto improve the accuracy ofthe surface scanned.

    Features Mode Expanding Panels

    Two expanding panels are available when the Positioning Features mode is selected inthe Scan Tree.

    The Positioning Features Detailspanel givesinformation about the total number of featuresin the current scan and the number of c urrentlyobserved features.

    The Positioning Features Parameterscontainstwo parameters available to the user: theFeature Type and the Optimize PositioningModel algorithm.

    The Feature Type allows the userto choose between the type ofpositioning feature currently in

    use. The default value is the type of features that was shipped with thescanner, but it can be changed to work with other positioning features byZCorp Please note that only ZScanner features can be used with thescanner. Contact your reseller for more information about the differentchoices in positioning features.

    The Optimize Positioning Model algorithm will consider all of theobservations of the positioning targets and optimize their position. This willallow a better precision in the resulting positioning model, henceincreasing the accurac y of the scanned surface.

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    Please note that the Optimize Positioning Model function will beunavailable after one of the following actions have been taken:

    A positioning feature isdeleted The positioning model is loaded with the Open Features

    function The Optimize Featureshas already been launched once

    Reference Mode

    The ZScanner 800 is self-positioning and must find its position inspace by itself; to do so, it must determine an origin for eachscan. The scanner will use the first detected position to fix thecoordinates system. When the first targets are detected, thescanner uses its internal position to define the system with "X

    pointing down (red), "Y pointing at its left (green) and "Zmoving away from the scanner (blue).

    Even if this positioning method works perfec tly in the ZScanner800 world, it is often very practical to be able to use another reference, or simply addone. For example, a user may want to scan in a pre-defined positioning system to avoidhaving to a lign the scan afterward in a third party qualification software for comparisonpurposes. It may also be very useful in the case where multiple scans need to bepositioned together.

    When expanded, this mode will show all the references available in the current scan.

    Each of them can be renamed and set as the origin of the current scan. While inReference mode, the 3D Viewer shows the references and the facets. The current origin islabeled (Origin) in the scan tree.

    Reference Mode Functions

    Toolbar Icon Location Action

    Edit| AddReference

    Starts the Add Reference wizard.

    Surface Mode

    When selected, the surface is displayed in the 3D Viewer. Thesurface is a representation of the object being scanned froma specific viewpoint. It is important to note that this is not thefinal result of the scan, but rather a quick visualization in order

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    to set the surface settings and to visualize the result during the acquisition process.

    Since ZScan 2.0, the rendering of the surface has been redone and improved for moreperformance and better looks.

    When this mode is activated, the surface functions are activated in the toolbar. These

    functions are summarized in the table below.

    Surface Mode Functions

    Toolbar Icon Menu Action

    Edit| MoveVolume

    Move the surfac e volume bounding box whilethe object remains stationary.The controls used for moving the volume arethe same as the ones used in the 3D viewer.

    Edit| Center

    Volume

    Translate the bounding box automatically tothe center of the object.

    This function does not rotate the bounding boxto fit the object better.

    Edit| FitVolume

    Center and rotate the bounding box around thescan and resize it to the smallest possible valuethat will include all laser curves alreadyacquired, regardless of whether they are insidethe current volume or not or if the facets havealready been deleted.

    Surface Mode Expanding Panels

    When in surface mode, two expanding panelsare available to the user. They containinformation about the surface that is in the 3DViewer as well as additional functions.

    The first expanding panel is the Surface Detailspanel. It displays a summary of the surfacereconstruction settings, such as the volume sizeand the resolution. This expanding panel is onlyexplicative.

    The second expanding panel is the Surface

    Parameterspanel. It allows the user to adjustsurface reconstruction settings according to hisneeds, such as the volume size. The Fit Volumeand Center Volume functions are also availablevia this expanding panel. Note that the volumesize affects directly the resolution of the scan.

    A temporary volume bounding box is created inthe 3D viewer when these parameters are changed, and the c hanges are applied only

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    when the Apply or Optimize surface button is clicked on. That way, the surfacereconstruction a lgorithm is launched only once, saving a considerable amount of time.

    It is also possible to specify a position and an angle for the volume bounding box byediting the fieldsPositionand Angle. In the position fields, X, Y and Z represent translationalong their respective axis. In the angle fields, the value represents a rotation around the

    X,Y and Z axis respec tively.

    The Optimize surface functionality uses the neighboring laser curves and looks forinconsistent data to try to remove it. As it is an iterative process, the calculation will go onuntil the user decides to stop or until no further improvement is possible. The surface willthen be rebuilt with the new parameters. This function has be reviewed and improved inZScan 2.0.

    Higher resolution does not necessarily means better results. Planesurfaces could end up noisier, as more unwanted imperfections

    could be caught.

    Facets Mode

    When the Facetsmode is selected in the Scan Tree, the 3DViewer will show the final result of the scan. The facets arestructured as a STL file, which can later be exported. Moreover,the Facet Editing toolbar and the Facet Detailsand FacetParametersexpanding panels bec ome available.

    Even though ZScan is mainly an acquisition software, it featuressome mesh edition functions, which are summarized in thetable below.

    Facets Mode Functions

    Some of the functions presented here can only be executed in Edition mode. This modecan be activated by clicking on the Edit Facetsbutton on the toolbar or with the Edit |Edit Scanmenu. When this mode is activated, the selection tools become available inorder to selec t which facets to edit. Please refer to the Selection Mode section to learnmore about the selection tools.

    Toolbar Icon Menu Action

    File | Save Facets Save the facets in STL format.

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    Edit| Edit Scan Enter the Facets Editionmode

    Edit | IncreaseResolution (while in

    Edition mode)

    Increase the resolution of the currently

    selected facets by 4

    Edit| DecreaseResolution (while inEdition mode)

    Decrease the resolution of the currentlyselected facets by 4

    Edit| RecycleFacets(while inEdition mode)

    Put the currently selected facets in therecycle bin. Facets in the Recycle bincan be restored later.

    Edit| DeleteFacets(while inEdition mode)

    Permanently delete facets. Use thisfunction carefully, as it cannot beundone.

    Be careful when using the Delete Facets functions. Facets will be IRREVERSIBLY DELETED. When in doubt, use the Send facets to

    Recycle Bin function.

    Facets Mode Expanding Panels

    There are two expanding panels in Facetsmode: Facets detailsand Facets Parameters.

    The Facets DetailsExpanding panel gives theuser information such as the number of trianglesand vertices in the current scan. This expandingpanel is informative only.

    The Facets Parameterscontains 4 importantparameters for facets rendering.

    Fill Positioning Features:Thischeck box controls whether thedetected positioning features arefilled or not in the facets.

    Spike Filter: This filter attempts tofind the vertices that are too farfrom the neighborhood vertices,hence c reating a spike in thesurfac e. The filter will then movethat point towards the facets,

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    respecting the normal orientation of the facets, which will smooth thespike while retaining the shape of the acquired data. This function hasbeen reviewed and improved in ZScan 2.0.

    Remove Isolated Patches:This filter makes it possible to removeautomatically small patches which are not connected with the mainobject. For example, this filter would be useful to automatically remove a

    part from the table behind the object that was acquired accidentally. It ispossible to protect patches from this filter with the Protect Patches fromRemoval tool. Activating this tool will allow the user to select triangles inthe 3D Viewer which won't be affected by the Remove Isolated Patchesfilter.

    Selection Mode

    The Selectionmode in ZScan is available mostly in the Facets Editionmode. However,some of the selection tools are a lso available when in Reference Mode. These tools areuseful to select certain parts of the 3D model in order to edit parts selectively. Selectedfacets will be displayed in yellow in the 3D Viewer.

    Toolbar Icon Menu Action

    Edit| SelectionThis button allows the user to choose thedifferent selec tion tools.

    Edit| Selection |Rectangle

    Activate the rectangle selection tool.

    Edit| Selection |

    FreeForm

    Ac tivate the freeform selec tion tool. This tool is

    also known as the Lasso.

    Edit| Selection |Brush

    Activate the brush selection tool. This toolcomes in 3 sizes: small, medium and large.

    Edit| Move Object

    Temporarily disables the selection tools tomove the object. The 3D Viewer controls revertto the original settings described in 3D ViewerControls section. This can also be achieved byholding the CTRLkey.

    Edit| Selection |Select Visible

    When this setting is activated, only the trianglesvisible from the current viewpoint will be

    selected.

    Edit| Selection |Select Through

    When this setting is activated, a ll the triangleswithin the selection a rea will be selected, eventhose hidden behind another layer of thesurface.

    Edit | Selection |Clear Selection

    Clear the current selec tion. This can also beac tivated with Shift+C.

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    Recycle Bin

    When selected, the Recycle Binmode expands to showall the deleted facets patches for the current scan.

    Two actions are available to the facets currently in theRecycle Bin when right-clicking on the facets in the scantree:

    1. They can be restored to the original scanwith the Restore Facets function.

    2. They can be permanently deleted withthe Delete Facets function.

    It is also important to note that the Isolated Facetscannot be restored via the recycle bin. To restore those

    facets, the user must adjust the c orresponding slider inthe Facets Parametersexpanding panel.

    Be careful when using the Delete Facets functions. Facets will be IRREVERSIBLY DELETED. When in doubt, leave the facets in the

    Recycle Bin.

    Recycle Bin Expanding Panels

    When the Recycle Bin mode is selected, theRecycle Bin Detailsexpanding panel is visible.This panel indicates the number of deletedfacets sections in the current scan.

    When the Deleted facetsmode is selected in theScan Tree, the Deleted Facets Detailsexpandingpanel will show the number of trianglescontained in that specific section.

    Configure ZScan

    Through the Configure menu, you can customize ZScan in order to improve yourscanning experience. The available options are reviewed in this topic and can beconfigured with the Configure | Optionsdialog box.

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    Software language: It is possible to run ZScan in different languages, English,French, Polish and Portuguese. A restart of the software is required for this optionto take effect.

    Tree View selection while scanning: This parameter controls the active view whenscanning. It is possible to selec t the Scannode (both surface and features visible),Positioning Featuresnode (only positioning features visible) or the Surface node

    (only the surface visible). Length unit: Spec ifies the unit used in ZScan. The available units are millimeters,

    centimeters, meters, inches or feet. It is convenient to choose a measuring unitcomparable to the size of the object being scanned.

    3D Navigation mode: Select the action of the mouse buttons in the 3D Viewer.These different modes are described in the 3D Viewer Controlssection.

    Select facets in tree view after stop: If this option is checked, the 3D Viewer willautomatica lly switch to the Facetsdisplay after the acquisition.

    Play sound when position lost: If this option is checked, the computer will play asound when the ZScanner 800 is unable to position itself.

    Show message when position lost: If this option is checked, a message will appearon the screen when the ZScan is unable to position itself.

    Show Toolbar button labels: If this option is checked, Use My Scans folder: ZScan will create a folder in My Documents called My Scans

    and will use that as the default folder for saving your scans.

    It is possible to set the parameters that ZScan uses by default when launching thesoftware via the Configure | Scan Parametersmenu. The scan parameters include thebounding box's size, position and resolution, the value of the remove isolated patchesand spike filter sliders as well as the scanner configuration (laser power and shutterspeed). Be c areful, as these actions cannot be reversed. Three options are available tothe user:

    Save current settings as default scan parameterswill take the current parametersand use them each time ZScan is launched.

    Restore current settings to default parameterswill reload all default parametersand restores them like to their value when launching ZScan

    Restore default scan parameters to factory settingswill reset all parameters totheir default value when coming out of factory.

    Add Reference

    This tool is used to manually add a new reference that could be used as the origin of thenew reference frame for the facets.

    You can choose between 5 adding modes, which are spec ified below.

    3 Planes Select 3 planes made of 3 targets each to specify thenew reference

    1 Plane, 1Line, 1 Point

    Select 3 targets to create a plane, 2 targets to create aline and 1 target to c reate a point. Those features willbe used to create the new reference

    DuplicateReference

    Create a new reference from an existing one

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    3 PositioningTargets

    Create a reference by specifying the position of threetargets.

    3 References Create a reference with 3 other pre-defined referencesIn each case, the process is identical: the user has to click on the required features in the

    3D Viewer and define their properties. For example, when using the 3 Planesmethod, theuser first selec ts a plane and must then determine if that plane is the X, Y or Z plane. Inthe case of3 Positioning Targets, the user must input the position of the target currentlyselected.

    In the last step, the user has the option to rotate or to translate the generated reference.The result is updated in real time in the 3D Viewer.

    The units used in the Add Reference Wizard are the units definedin ZScan. It defaults to millimeters and c an be c hanged in

    Configure | Options.

    Sensor Calibration

    Even under normal use, the ZScanner 800 may need to have its calibration optimized. Thistool is used to verify and optimize sensor calibration. To complete the optimizationprocess, follow the procedure depicted in the following figure.

    1. Press the Acquire button to activate the sensor.2. Lay the calibration plate on a stable plane surfac e. Position the scanner at

    approximately 10 cm (4 in) from the calibration plate.3. Use the Previewbutton on the ZScanner 800 to position the laser cross in the white

    cross of the calibration plate.4. Press the trigger and slowly move the scanner away from the plate, to an

    approximate distance of 60 cm (24 in) or until the 10 measurementsare taken.Make sure that the laser cross stays in the white cross of the calibration plate.

    5. Follow recommendations displayed in the Sensor Diagnostic area.

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    It is possible to see your factory calibration date as well as last optimization date. Pleasenote that for you to see your fac tory calibration date, your scanner must have beencalibrated after the ZScan 1.3 release date (J uly 1st, 2007).

    Press the Defaultbutton to reset the sensor calibration to itsfactory settings. Use this functionality only if, for some reason, theoptimization process fails to give valid results. It is also possible to

    restore the scanner to the factory settings via the SensorManager.

    Sensor Configuration

    This tool is used to configure the sensors laser power and the cameras shutter timeaccording to the type of surface you wish to scan. Since each surface has differentreflec tion properties, it is important to adjust the sensor's parameters to get an optimal

    detection of the laser lines. The figure below shows the sensor configuration dialog.

    To configure the sensor correctly, hold the scanner at the nominal distance from theobject (~30 centimeters) and press the trigger. The laser lines will be displayed in grey,yellow or red, depending if they are exposed correctly. The parameters should be set so

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    that a majority of detected laser points are included in the reliable zone (yellow). If thelaser lines are underexposed, they will not be detected entirely. On the other hand, iflaser lines are saturated, there will be a lot of noise in the resulting scan and the laser lineswill not be detected prec isely.

    It is possible to adjust the parameters through the two sliders at the bottom of the dialog.

    The Laser Powerslider controls the output power of the laser. It is expressed as apercentage of the peak laser power. A higher value will result in less points beingunderexposed. The Shutterslider controls the exposure time of each frame and isexpressed in milliseconds. A higher value in that slider means that more light will comefrom the laser line, and it will appear more saturated.

    The Auto Adjusttool will adjust the scanner parameters and find which parameters will beoptimal for the object the user is trying to scan. This works well if the laser lines are entirelycontained within the object to scan. It can be used as an initial approximation if the laserlines are only partially enclosed within the object to scan.

    The Save button can be used to save a template of parameters, which can later beloaded with the Open button. It can prove to be useful when scanning similar objec ts.

    Sensor parameters can be restored to their default setting by hitting the Defaultbutton. Itis possible to reset the parameters to what they were before opening the sensorconfiguration tool by hitting the Resetbutton.

    Sensor Manager

    At the end of the installation process, or at all times after that, it is possible to access thesensor manager in order to manage the configuration and license files for your scanner.This utility is available through the menu Configure | Sensor Manager.

    The figure below shows the main sensor manager window. The main feature of thiswindow is the Sensor list, which include all the sensors installed on that particularcomputer. It is possible to install more than one scanner on the same computer, as in theexample below. The Configurationand License columns show the status of theconfiguration and license files for one particular scanner. If the files are correctly installed,there will be a mark in the respective checkbox.

    The column Active indicate whether a particular scanner is currently active. In order toimprove ZScan's loading time, it is possible to deactivate scanners. The improvement inperformance when starting the software will be most noticeable if many scanners areinstalled on the same computer. Please note that having many active scanners won't

    impact on ZScan's scanning performance.

    In the example below, the scanner OKis installed correc tly and is currently active. Thescanner Inactive is correctly installed, but cannot be used as it is currently deactivated.The scanner NoConfig cannot be used as its configuration file is missing and is thereforeinactive.

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    When clicking on the Newbutton, the user is prompted to enter the scanner serialnumber and to browse to the location of the configuration and license files. These filesare located on the CD provided with the scanner. Click on OKto install the files. Once

    this is done, the scanner is ready to be used.

    From the main window, it is also possible to restore the scanner's calibration to the factorydefault. Be careful, as this manipulation cannot be undone.

    Software Uninstallation

    ZScan can be uninstalled through the Add and Remove Programs in Windows ControlPanel.

    In Windows XP: In the Start Menu, go to ParametersControl Panel. In that panel, go to Add and Remove Programs. Select the Modify or Remove Programstab, and select ZScan from the list. Click on Change/Uninstall and follow the instructions on the screen to complete

    the removal process.

    In Windows Vista: In the Start Menu, click on Control Panel. In that panel, go to Programs and Features. Select ZScan from the list and click Uninstall. Follow the instructions on the screen to complete the removal process.

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    The Uninstallation tool will give the user the choice of keeping his license andconfiguration files. IfYesis selected, the foldersZScan\ Configuration and ZScan\ Licencewill not be removed.

    Help

    Should you have issues with some of ZScan's functionalities, please refer to the Helpfunction of this manual to find the required help .

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    Scanning Techniques

    Object Preparation

    Applying targets

    It is essential to prepare the object prior to scanning. Reflective targets must be affixedrandomly on the object with a minimal distance of 20 mm (0.75 in) between them. Forsurfaces with a low curvature, the distance between each target can reach 100 mm (4in). Those targets will enable the system to position itself in space. Positioning targets mustbe applied on plane surfaces, keeping at least 12 mm from the edges on every side.

    Here is an example of proper target distribution.

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    For better digitization, any object that is shinny, black, transparentor reflec tive, (mirror, shiny or metallic surface) might need to be

    covered with white powder in order to give it a matte finish.

    Proper target distribution may be difficult to obtain, particularly forsmall surfac es (small objects). It is then suggested to distribute the

    targets on a plane (preferably black/dark and matte) and toplace the object on this plane.

    Importing Positioning Features

    It is possible to import in ZScan a previously acquired positioning model or positioningfeatures acquired by the ZScanner 800 or by a photogrammetry system. The two types of

    files that can be imported are .txt and .obc files.

    The text files (.txt) to be imported must include three columns (X, Y, Z), separated with aSPACE. The three c olumns represent the center of the target. Files exported by ZScan areexported in the right format and can be used natively by the software.

    The .obc files are files produced by AICON photogrammetry systems. These files can beimported directly into ZScan.

    Imported targets will then appear as spheres in the 3D Viewer as it is impossible for ZScanto know in which direction they are. The scanner will use the positioning targets patternto position itself in space and will add the normal after detecting the targets for the firsttime. Please note that only ZScanner targets can be recognized. Any other type ofreflective target will not be usable in ZScan.

    Using Sensor Configuration

    Depending on the color and finish of the part to scan, the ZScanner 800's parametersmay require a little tuning. These adjustments are necessary to allow acquisition and tolimit the level of noise in the data. While the default laser and camera parameters are setfor a wide range of surfaces, it is possible that they need to be c hanged in order toacquire the data properly. Moreover, when the part to scan includes more than onecolor or finish, adjusting laser parameters becomes more complex.

    Three situations can occ ur when trying to scan:

    Under-exposition: The reflection of the laser is not or is weakly perceived by thecameras. There is not enough information gathered by the software to calculateand build a mesh from the physical surface.

    Saturation: The reflection of the laser is so intense that the cameras are blinded.The laser line is not clearly defined and may lead to an improper surfacereconstruction, or an unusual amount of noise in the data.

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    Reliable: The laser is reflected as a clean and defined line. Surface calculation isdone under ideal circumstances.

    Before starting the acquisition proc ess, it is important to optimize the configuration of theZScanner 800 for the part being scanned. An adequate scanner configuration will ensurea good detection of the laser lines and a proper reconstruction of the surface. Please

    refer to the Sensor Configuration section for more information on the SensorConfiguration dialog.

    Since it is possible to change the configuration of the sensor during the scan, manystrategies can be adopted for scanning multi-shaded parts. If the contrast is low, acompromise can be reached between the different colors and still get a good result onthe laser lines detection. However, if the contrast on the piece is high, it is best to scanone part of the object, change the sensor configuration and finish the scan with the restof the scan. Please note that it is not necessary to stop the scan to access the SensorConfiguration dialog.

    Calibrate Scanner

    The ZScanner 800 being a high prec ision measurement instrument, calibration is crucial toensure the quality and accuracy of the results. J ust like for any standard measurementinstrument, ca libration is made using a known reference. When on the field, because ofchanges in the environment of the sensor, calibration may be affected. These changesare mostly due to variations in temperature or pressure, and result in modifications of themechanical c onfiguration.

    The glass plate is used to compensate for these changes. The software optimizes thecalibration in order to get back to the initial measuring characteristics, but in a differentenvironment.

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    When acquiring data of the calibration plate, it is important to be as perpendicular tothe plate as possible and to keep the laser cross in the white area of the plate.

    Ten measures of the targets on the plate are taken. That data is compared to the knowndata of the initial ca libration. Depending on the results of the comparison, the calibrationmay be accepted or rejected. If accepted, the sensor is ready to scan.

    If the calibration fails, some details need to be checked before concluding to adec alibrated scanner:

    1. There are no reflective objects near the calibration plate. Detection of a falsepositioning feature is likely to make the process fail. In that case, remove theobjects and try again.

    2. Verify that the calibration targets are in good condition. Every target on the plateshould be in perfect condition. Even only one damaged or misplaced target willproduce an Optimization failed message.

    3. Click on the Defaultbutton in order to restore the calibration to the factorysettings and try the optimization again.

    If all these steps fail, please contac t Customer Support for further help.

    The reflective targets of the calibration plate do not have thesame coating than the ones used for scanning. Because of this,their sensitivity to exterior contaminants is greater. It is thereforeimportant not to touch them with your fingers or any other oily

    substance.

    Proper Scanning DistanceWhile digitizing, a meter displayed on the left of the screen indicates the distancebetween the scanner and the object. This meter is also represented on the scanner by 3LED located on the upper part of the ZScanner 800 (red, green, red). The table belowillustrates the relationship between the distance meter in ZScan and on the ZScanner 800.

    Scanneris tooclose

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    Distanc

    e is OK.

    Scanneris toofar.

    Note: Your scanner model might differ from the illustration, but the mechanism remainsthe same

    When the scanner is too close to or too far from the surface, itloses tracking. This means that the cameras can no longer position

    the targets or that the target distribution is incorrec t.

    If tracking is lost, reposition the scanner in front of a surfacealready scanned and trigger again or try to redistribute the

    targets differently on the surface.

    When a temporary malfunction occurs,it is indicated by 2 red LEDslocated on the upper part of the ZScanner 800.

    Editing the Scan

    ZScan offers some editing functions in order to clean the 3D model before publishing afinal result. The available functionalities are described below.

    Deleting facets

    During digitization, it is possible that undesired surfaces be acquired. Sometimes, a shinysurface or a specular reflection can produce noise in the scan. Before publishing a final

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    result, it may be necessary to delete these undesirable facets. It can be done in twodifferent ways.

    The small facets can be removed with the Remove Isolated Patchesslider in the FacetsParametersexpanding panel. In the example below, a specular reflection createdartifacts in the STL. By increasing the value of the slider, the small patches are removed

    automatically. The algorithm identifies the largest object and removes smaller patcheswhose size is determined by the value of the slider.

    The bigger patches (or the smaller patches that are somehow connected to the mainobject) can be removed via the Recycle function. In the example below, the hand ofthe person who was scanning was mistakenly scanned. The Freeform Selection tool was

    used to select the unwanted triangles. Then, the Recycle button from the toolbar wasclicked on to send the unwanted patch to the recycle bin. It is also possible topermanently delete triangles using the Delete function.

    Increasing Resolution

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    If you want more details on a particular part of a piece, it is possible to increase theresolution locally. The Increase Resolution function will increase the resolution of theselected facets by 4. As you can see in the figure below, the resolution of a part of thepiece was increased in order to have a better view of the details. The effect of thatfunction is much more drastic than changing the resolution of the volume, hence itshould only be used locally because of memory constraints.

    With the ZScanner 800, if you want to increase the resolution on a part of the piece, use

    the High Resolutionmode on the scanner. This option will turn on the third camera of thescanner and acquire the laser curves directly in high resolution for better precision andaccuracy in these zones.

    Decreasing Resolution

    If some regions in the scan have had their resolution increased, it is possible to revert thissurface to the original resolution by using the Decrease Resolution function. As with theprevious tool, this acts on a selec ted set of triangles, which is, partially or completely, inincreased resolution. The following figure shows the decrease in resolution for a particularzone. It is important to note that the selection made in this case was larger than the zonethat was ac tually decreased. The transition between increased and normal resolutionzone is done automatically and in a way as to make it as smooth as possible.

    With the ZScanner 800, the laser curves acquired in high resolution mode can bedecreased in order to keep the high resolution only on the interesting details. This can beuseful to prevent unwanted details from being displayed on the digitized surface.

    Restoring Facets

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    Any facet removed using the Recycle function or the Remove Isolated Patchesslider willbe put in the Recycle Bin.

    In the case of facets deleted with the Recycle Facets function, enter the Facets Editionmode and right-click on the corresponding mode in the Scan Tree. The Restore functionwill become available.

    If the facets were deleted with the Remove Isolated Patchesslider, it will not be possibleto restore them from the Recycle bin. Instead, you must go back to the SurfaceParametersExpanding Panel in the Surface mode and change the slider to a moreconservative value. The deleted facets will then be restored in the STL, depending on thenew value of the slider.

    Facets permanently deleted with the Delete facets function will not appear in theRecycle binand it is impossible to restore them.

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    Miscellaneous

    Troubleshooting

    Troubleshooting

    Hardware

    The PowerLED on the scanner does not turn on even when I connect it. I get the following message when I start the software: The scanner is

    disconnected. Scan functions will be unavailable. I am experienc ing display problemswhen using the software.

    Software

    I get a No Configuration File found message when starting the sofware I get a License Expired message and am unable to scan. I receive an error message wile scanning telling me that an internal error has

    occurred. My scanner is having difficulty positioning itself. It does not detect the targets. I am experienc ing slow frame rate when scanning. My scanner refuses to calibrate I had a Out of memory error and now there is no surface or facets in my session. Some holes appearwhen I increase resolution. My surface doesnt appear completely when in facets view

    Scanning Techniques

    I am not able to scan small parts. I have some difficulties scanning more dark surfacesor parts of the surface.

    Miscellaneous

    I checked the option to install the plugin for Geomagic but there is nothing underplugin in Geomagic.

    Hardware Solutions

    The "Power" LED on the scanner does not turn on even when I connect the scanner.First, make sure that the power supply is connected properly in the power source and inthe PCMCIA card. If the LED still does not turn on, check for any damage on the power

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    supply connectors and wires by replacing the parts one by one. You can also check yourFireWire cable for any connection problem.

    I get the following message when I start the software: "The scanner is disconnected. Scanfunctions will be unavailable."There is no scanner connected to your computer or there is no valid configuration file

    installed on the computer for this scanner. Make sure that your scanner isconnectedproperly to your computer. Make sure that the configuration file is installed correc tly byusing the Sensor Manager. Once this procedure is completed, see the ConnectionTroubleshooter if the problem is still not solved.

    I am experiencing display problems when using the software.requires high system performances. Please make sure that you are not running yourlaptop computer on battery power and that all possible power saving options in thecomputer and video card settings are activated or configured for maximumperformance.Windows Vista UsersHSM's3D display is using the OpenGL technology. In Windows Vista, Microsoft does notnatively support that technology. It is now the video card manufacturers's responsibility tooffer the OpenGL support. The drivers are still at an early stage, and major video cardmanufacturers are still reporting problems under Vista.The latest Windows Vista drivers for the laptop sold with our systems can be dowloadedby our customers under maintenance through our website. Please install these drivers ifyou are using our laptop under Vista to ensure best possible performances.

    Software Solutions

    I get a "No Configuration File Found" message when starting the software.Your configuration file is not available or is corrupted. Please download a fresh copy ofyour latest Configuration File and use ZScan File Manager to import it properly. Make surethat a file name YouSensorSerialNumber.cst appears in the following folder:\ \ YourZScanInstallationPath\ Configuration\ . Please feel free to contact us if you feelthat the license on the extranet was not updated properly.

    I get a "License Expired" message and I am unable to scan.Your ZScan license is expired. Most of our systems are shipped by default with a 90-daylicense. Use ZScan Sensor Manager to import your new license and to make sure that thefiles are detected correctly. Make sure that a file name YouSensorSerialNumber.clfappears in the following folder: \ \ YourZScanInstallationPath\ License\ .

    I receive an error message while scanning telling me that an internal error has occurred.

    There is a high probability that this error message was triggered by a connectionproblem. Please see the Connection Troubleshooter.

    My scanner is having trouble positioning itself. It does not detect the targets.Please make sure that you use the calibration tool to optimize your calibration; this shouldbe done before starting to scan every time you use it.

    My scanner refuses to calibrate.

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    First, make sure that you are scanning your calibration plate properly. You can alsocheck for any reflective object as far a 2 feet around the plate on each side. You canalso try to "Reset" your Configuration File by using the Default button in the CalibrationWindow.

    I had a "Out of memory" error and now there is no surface or facets in my session.

    Your data was not lost in the process. The new memory manager will inform you that it isout of memory and was not able to rebuild the surface/facets. You can set yourresolution to a lower level and try to rebuild the surface. If this is unsuccessful for anyreason, set the resolution to Low, save your session, restart ZScan and try to open it again.

    Some holes appear when I increase the resolution.Increasing resolution requires more data. Holes can be created if there is not enoughdata to reconstruct the surface at this resolution.

    My surface doesnt appear completely when in Facets view.The part you are scanning may be too large or may not be centered in the scanningspace. Make sure that your scan is properly positioned using the functions available inSurface view.

    Scanning Techniques Solutions

    I am not able to scan small parts.Smaller parts require more data. Contrast is very important for the scanner to detectwhat to scan and what not to scan. If it looks like it is not catching the surface, try using abackground that is the same color as the part you are trying to scan.

    I have some trouble scanning the darker surfaces or parts of the surface.It is very important to adjust the laser power and shutter time according to each surfaceto scan.

    Miscellaneous Solutions

    I checked the option to install the plugin for Geomagic, but there is nothing under pluginin Geomagic.Make sure that you chose the right plugin for your version of Geomagic and that youcan find the file ZScanGeomagicXPlugIn.dll where "X"should be your version ofGeomagic.

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    Index

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    ZScan Manual

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    33D Viewer .................................................. 133D viewer controls ................................... 15AAdd Reference............................... 5, 21, 28AICON ........................................................ 35Auto Adjust................................................ 30CCLF ................................................................ 5Connecting ............................................... 11Control Panel ............................................ 33CSF................................................................ 5CST ................................................................ 5DDelete ........................................................ 39EEdition Mode ................................ 23, 26, 39Expanding Panels .................................... 13FFacets ............................................ 23, 25, 39Features Mode ......................................... 19Fill Positioning Features ............................ 23GGeneral Interface .................................... 13HHelp menu ................................................. 34High Resolution ......................................... 39IInstallation ................................................... 8

    LLaser Power ............................................... 30Lasso ........................................................... 25MMinimal System Requirements ................. 4Move .......................................................... 22Move Volume ........................................... 15NNew Session .............................................. 18OObjec t Preparation.................................. 34Open Features .......................................... 19Open Session ............................................ 18

    Optimization ............................................. 36PPCMCIA ....................................................... 4

    Planes .........................................................28Positioning Features .......................... 19, 35Positioning Targets ....................................28Protect Patches ........................................23RRecycle Bin ..................................... 5, 26, 39Reference Mode ......................................21Remove Isolated Patches ................ 23, 39Resolution ..................................................39

    Dec reasing ............................................ 39Increasing ..............................................39

    SSave Facets ...............................................23Save Session ..............................................18Scan Features ............................................. 5Scan Surface ........................................ 5, 18

    Scan Tree ............................................ 13, 19Scanner General C are .............................. 4Scanning Distance ...................................38Scanning Volume ....................................... 5Select Through ..........................................25Select Visible .............................................25Sensor Calibration ............................. 29, 36Sensor Configuration ........................ 30, 36Sensor Manager .......................................32Sensor Reference Frame ........................... 5Shutter ........................................................30Software Installation ................................... 8Spike Filter ..................................................23

    Start VxScan ..............................................12Status Bar ...................................................13STL ................................................................. 5Surface ......................................................... 5Surface Details ..........................................22Surface Mode ...........................................22Surface Parameters .................................22System Specifications ................................ 4TTXT ................................................................. 5UUninstall ......................................................33

    User License ................................................. 1WWindows Vista ............................................. 4

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