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Unread 15-11-2015, 19:31
Monochron's Avatar
Monochron Monochron is offline
Engineering Mentor
AKA: Brian O'Sullivan
FRC #4561 (TerrorBytes)
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Re: pic: TerrorBytes 2015 Shooter Plate (Drawing)

Quote:
Originally Posted by Cory View Post
....
Thanks, that's a ton of great suggestions. A couple questions:
  • What are good title block tolerances? Does the +-.005 you referenced simply specify how accurate lengths should be? I'm guessing holes should be within a thou (1.1245-1.1255)? Angles probably within a degree. Is there a good template or recommended set of tolerances that I could use as reference?
  • Would a directly toleranced call out for a press fit bearing look like "1.125 +/- .005"?

Quote:
Originally Posted by Madison View Post
If you're sending this to a sponsor / vendor, consider whether you really need accuracy to the thousandth on ALL of those dimensions. (You don't.)
Good to know, I don't know what accuracy I DO need however. If you have answers to the questions I asked Cory above I would be glad to hear them.

Quote:
Since you're dimensioning to witnesses, you should show the witness marks to make that clear.
Though I was able to lookup what "dimensioning to witness" means I don't know what it means to show witness marks.

Last edited by Monochron : 15-11-2015 at 20:02.
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