Sprocket
 

Can we tap and die the sproket on the out drive shaft so as to hold the sproket in place?

Re: Sprocket
 

A lot depends on your set up, however, I would try to find another method (welding, cutting a key, pinning...). One of the most probable problems would be the sprocket "unscrewing" itself from the shaft depending on the direction of rotation.

Re: Sprocket
 

It seems as if you may have intended for this question to go in the official FIRST Question & Answers forum.

That can be found here: http://forums.usfirst.org/forumdisplay.php?f=52

Please be aware that any answers you find here are unofficial and may be incorrect or inconsistent with how FIRST interprets your question and the rules.

Re: Sprocket
 

Sounds iffy to me, why not try set screws?

Re: Sprocket
 

To Quote Woodie Flowers "Setscrews inhale audibly." :ahh:

Re: Sprocket
 

Can you legally? Yes. Should you? Maybe not. Using threads is not the best way to transmit torque. At the least, you would also need a left-handed threaded hole int he end of the shaft in which you place a retaining bolt and washer, like how a drill chuck is held on.