2 - design basics
DESCRIPTION
Basics of DesignTRANSCRIPT
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Design Basicsor how to put together simple things simply
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OutlineAttaching things (permanently and temporarily)Simple structural supports and enclosures, sealing (o-rings)Designing things that have to move (bearings, tracks, jamming issues)Modular solutions (MK, macrobench, dexion)
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Permanent AttachmentWelding (later)Brazing (later)RivetsGlueEpoxySuperglueSolvent-based adhesives
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Temporary AttachmentWood screwsSheet metal screwsMachine screwsSet screwsThumb screws
Go to www.mcmaster.com !!!
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Temporary Attachment:Fastening with ScrewsWood screwsSheet metal screwsMachine screwsSet screwsThumb screws
Go to www.mcmaster.com !!!
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Screws & BoltsTerminology
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Attachment with Screws & BoltsCalculate forces according to textbooks like Mechanical Engineering Design by Shigley & Mischke to find the correct size until you have a good gut feeling
Examples of attachment on blackboard
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Screws & BoltsHow to create threads: tap and die set
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Supports, Enclosures, Pressure VesselsSupports Take loadLook niceEnclosuresVisually clear or notThermal isolationPressure isolation
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Supports, Enclosures, Pressure VesselsSupports Take loadLook niceEnclosuresVisually clear or notThermal isolationPressure isolation
Make them SIMPLE!
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Supports, Enclosures, Pressure VesselsSupports Take loadLook niceEnclosuresVisually clear or notThermal isolationPressure isolation
http://www.parker.com/sg/sgcatalogs.aspParker Seals
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Things that MOVE
pergatory.mit.edu/2.007
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pergatory.mit.edu/2.007
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pergatory.mit.edu/2.007
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pergatory.mit.edu/2.007
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pergatory.mit.edu/2.007
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pergatory.mit.edu/2.007
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Linear Motion
pergatory.mit.edu/2.007
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Linear Motion
pergatory.mit.edu/2.007
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Linear MotionMcMaster-CarrOrder onlineCALL for help!
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Bearings & lubricationRotational & Linear MotionNEVER put aluminum on aluminum!USE a BUSHING or BEARING
pergatory.mit.edu/2.007
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Commercial Solutions
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MK Automation
www.MKprofiles.com easy attachment modular not too cheap GREAT for enclosures, structures
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Macrobench and MicrobenchNOT cheapGREAT alingmentGREAT for opticsDifferent sizes available
www.linos.com
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DexionEasy to useNot very structuralNot as pretty as other options
www.dexion.com
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REFERENCESBEST DESIGN TEXTBOOK EVER!Mechanical Engineering Design by Joseph Shigley and Charles MischkeDesign Websitepergatory.mit.edu/2.007Parts/Infowww.mcmaster.comwww.parker.com/SGwww.MKprofiles.comwww.linos.comwww.dexion.com