or how to put together simple things simply

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Presentation transcript:

or how to put together simple things simply Design Basics or how to put together simple things simply

Outline Attaching 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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Temporary Attachment Go to www.mcmaster.com !!! Wood screws Sheet metal screws Machine screws Set screws Thumb screws Go to www.mcmaster.com !!!

Temporary Attachment: Fastening with Screws Wood screws Sheet metal screws Machine screws Set screws Thumb screws Go to www.mcmaster.com !!!

Screws & Bolts Terminology

Attachment with Screws & Bolts Calculate 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

Screws & Bolts How to create threads: tap and die set

Supports, Enclosures, Pressure Vessels Take load Look nice Enclosures Visually clear or not Thermal isolation Pressure isolation

Supports, Enclosures, Pressure Vessels Take load Look nice Enclosures Visually clear or not Thermal isolation Pressure isolation Make them SIMPLE!

Supports, Enclosures, Pressure Vessels Take load Look nice Enclosures Visually clear or not Thermal isolation Pressure isolation Parker Seals http://www.parker.com/sg/sgcatalogs.asp

Things that MOVE pergatory.mit.edu/2.007

pergatory.mit.edu/2.007

pergatory.mit.edu/2.007

pergatory.mit.edu/2.007

pergatory.mit.edu/2.007

pergatory.mit.edu/2.007

Linear Motion pergatory.mit.edu/2.007

Linear Motion pergatory.mit.edu/2.007

Linear Motion McMaster-Carr Order online CALL for help!

Bearings & lubrication Rotational & Linear Motion NEVER put aluminum on aluminum! USE a BUSHING or BEARING pergatory.mit.edu/2.007

Commercial Solutions

MK Automation easy attachment modular not too cheap GREAT for enclosures, structures www.MKprofiles.com

Macrobench and Microbench NOT cheap GREAT alingment GREAT for optics Different sizes available www.linos.com

Dexion Easy to use Not very structural Not as “pretty” as other options www.dexion.com

REFERENCES BEST DESIGN TEXTBOOK EVER! Design Website Parts/Info Mechanical Engineering Design by Joseph Shigley and Charles Mischke Design Website pergatory.mit.edu/2.007 Parts/Info www.mcmaster.com www.parker.com/SG www.MKprofiles.com www.linos.com www.dexion.com