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Unread 28-10-2015, 12:10
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I am Dave! Yognaut
AKA: Brian Bray
FRC #1296 (Full Metal Jackets)
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Re: CIMcoder: Encoder Mount

Quote:
Originally Posted by JamesTerm View Post
My question to you is... do you use exact measurements in the CAD, and do you solve for precision loss of your 3D printer... if so how? I'm still trying to work-out an elegant work-flow to keep exact measurements in CAD while converting to STL with the adjustments (e.g. equations or something along these lines).
When I print bolt holes I usually undersize a little and print with extra shells (maybe 4 instead of my typical 2) and then drill it out with a free fit tap drill bit. Steel machine screws easily tap themselves into the hole and make their own thread. Otherwise I will drill a clearance hole for non-threading situations.

It is generally a very easy extra operation that saves the hassle of worrying about print tolerance.
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RIP David Shafer: you will be missed