Quote:
Originally posted by Joe Johnson
I am quite certain that the thread on OD of the 1/2 inch drill we have in the kit this year is 1/2 - 20 (not 1/2-16 as stated above).
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Joe, are you super-duper-absolutely-without-a-doubt certain about this?
I ask for two reasons. . . first, and most importantly, I specified 1/2-16 in my drawings for a shaft coupling. Our machinist did a cursory analysis of the shaft output, too, because he didn't believe me, and agreed it was 1/2-16.
I took that information, perhaps erroneously, from FIRST's provided Virtual Kit of Parts. On the drill motor model provided for Inventor, the thread was 1/2-16.
Did Autodesk mess something up?
Edit: I just double checked, and the Autodesk model definitely reads 1/2-16. I understand it's easy for someone to slip on something like that, though. The search continues.
Edit #2: According to the model of the drill coupling, it's a 1/2-20, like Joe said. Grr. I should've double checked this. Autodesk should have, too. Thanks for bringing that to my attention, Joe. A lot. You could have just saved the day.