p10551 - nano-ink deposition system system level design review
DESCRIPTION
P10551 - Nano-ink Deposition System System Level Design Review. FAB AMERICA. Eric Hettler - ME William Gallagher - ISE Christopher Mieney - ME Gregory Ryan - ME Joseph Cole - EE. Design Review Agenda. Project Description System Architecture Final Design Specifications Project Status - PowerPoint PPT PresentationTRANSCRIPT
P10551 - Nano-ink Deposition SystemSystem Level Design Review
Eric Hettler - MEWilliam Gallagher - ISE
Christopher Mieney - MEGregory Ryan - ME
Joseph Cole - EE
FAB AMERICA
Design Review AgendaProject DescriptionSystem ArchitectureFinal Design SpecificationsProject StatusSummary of Test ResultsGoing ForwardQuestions
Project Overview Fab@Home open-source
architecture Modify an existing Fab@Home
deposition system to mix materials and deposit layer by layer on print surface.
A UV curable resin will be dyed to serve as a medium to demonstrate the printing of multiple materials.
Interface with software
http://fabathome.org
Key Engineering SpecificationsSpecification Description of Metric Unit of Measure Acceptable Value Desired Value
Can Print Multicolor Number of Base Colors # 3 3
Can Print Viscous Material Viscosity of resin cP > 165 > 300
XY Repeatability Mean/standard deviation of XY locations of deposited materials mm TBD TBD
Z Repeatability Mean/standard deviation of layer thicknesses mm TBD TBD
Part Size (XYZ) Mean/standard deviation of Error length/length of desired part mm/mm TBD TBD
Printable area Maximum printable area mm x mm > 50 x 50 > 100 x 100
Minimum Feature Size Resolution in XY plane mm < 0.1 0.0158
Minimum Feature Size Combined Cured Droplet Diameter mm < 0.5 < 0.1
Color Variability Uncombined Uncured Droplet Volume nL < 25 < 10
Color Variability Uncombined Uncured Droplet Volume Precision nL TBD TBD
Low Cost Total Budget $ < 3,000 - Parts < 3,000 - Parts
Curing Time Time to cure a layer of epoxy sec < 180 < 60
Project Development
MSD IIMSD I
1 2 3 4 5
Phase 1: Development• Engineering
Specifications• Concept Development
Phase 2: Design• Systems Level• Detailed Design
Phase 3: Design Confirmation• Design Analysis• Formulate BOM
Phase 4: Fabrication• Order Parts• Fabricate Parts
Phase 5: Testing• Characterize• Capabilities
Systems Overview3D Printer
Software Commands
Uncured Part
Curing
Motion Control
Controller
Controller
Material Delivery Carriage
Z Motor Lead Screw
XY Motors Lead Screws
Light Source
Micro Valves Material Deposition
Platform Cured Part
Computer
Final Design Concept
BudgetTotal cost must be below $3000 dollars.Preferred cost is below $1000 dollars to
better align with the Fab@Home mindsetOutcome:
Category CostMaterial and Color Delivery $638.19Curing $55.68Electronics $13.71Total $707.58
System Testing ResultsDeposition similar to fountain pen.When multiple colors are printed in same
layer, toothpaste like effect.Edges tend to run over.Thickness is relatively repeatable.
Project Status (Specs Met)Specification Description of Metric Result Acceptable Value Desired Value Spec Met?
Can Print Multicolor Number of Base Colors 3 3 3 Yes
Can Print Viscous Material Viscosity of resin 260cP > 165 > 300 Yes
Z Repeatability Mean of layer thicknesses .24mm TBD TBD -
Printable area Maximum printable area 230mmx150mm > 50 x 50 > 100 x 100 Yes
Minimum Feature Size Resolution in XY plane Tip Dependent < 0.1 0.0158 -
Minimum Feature Size Stream Width Tip Dependent - - -
Minimum Feature Size Combined Cured Droplet Diameter N/A < 0.5 < 0.1 N/A
Color Variability Uncombined Uncured Droplet Volume N/A < 25 < 10 N/A
Color Variability Uncombined Uncured Droplet Volume Precision N/A TBD TBD N/A
Low Cost Total Budget $707.58 < 3,000 - Parts < 3,000 - Parts Yes
Curing Time Time to cure a layer of colored epoxy 240 seconds < 180 < 60 No
Going ForwardFurther design on mixer/manifoldModification of Fab@Home Software
More modular setupModify paths
More Robust ElectronicsLimit switches, wiring panels, motors,
interfaces, etc.Closed Loop
Z –axis positioning
Questions?