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Unread 14-08-2006, 14:01
sanddrag sanddrag is offline
On to my 16th year in FRC
FRC #0696 (Circuit Breakers)
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Re: CIM Voltage and Motor Suggestions

Quote:
Originally Posted by jakep
There is no easy way to mount 4 CIMS with our gearboxes. Doing so would require redoing the gearboxes completely, so I am searching for perhaps something better.

Edit: Kevin, sorry for my lack of knowledge in this subject, but the only machining required would be to attach something to the output of the gearbox, right? I know on regular drills you unscrew the cap, place a drill bit or something inside, then screw it tight. I'm guessing that strategy wouldn't work for us though, right?
What are your gearboxes? I thought you wanted to buy Dewalts but this makes it sound like you have something already. Do you have something already?

Using a stock drill chuck probably wouldn't work because you couldn't get it tight enough. It would slip. To adapt a drill motor to a robot, you could take off the chuck by removing the left hand screw you'll whole chuck will unscrew from the gearbox output shaft. You'll be left with a threaded shaft. On the lower voltage XRPs, it is 1/2-20. I'm not sure if it is the same on the 24V model. So then, you just use a tap (preferably set up in a lathe or a mill) to put internal threads in the bore of your sprocket/gear/flex coupling/etc so you can screw it on the gearbox output shaft. Then you put the left handed screw back in the gearbox output shaft with a nice thick washer and that keeps the sprocket/gear/etc from unscrewing itself. It is all explained in the NBD whitepaper.
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Last edited by sanddrag : 14-08-2006 at 16:36.
 


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