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Unread 10-03-2007, 07:50
Teched3 Teched3 is offline
Hodge1
FRC #0175 (BuzzRobotics)
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Re: pic: Banebots carrier plates problem & solution

Quote:
Originally Posted by dapub View Post
We ran all of our seeding matches (8) and then the quarter finals with the hardened plates.... that were not welded. Without any problem. We are using 4 gearboxes - one on each of our mecanum wheels.

But we have not pulled them to inspect them. Maybe we have just been lucky.
The holes on the plate were too large, and tapered, so the engagement is only about 1/3 the thickness of the plate. That coupled with the fact that the pins are shorter than the orginal, will allow them to work out toward the thrust plate, and come loose. It's only a matter of time before they will fail without warning. Be prudent, and get a set welded at the machine shop, and replace them when you have time. We took the hardened plates, re-drilled and reamed new holes in between the original holes, and press fit proper length pins into the plates with Loctite. Until we can change them at Chesapeake, we are running the original softer plates because we can monitor the Double D hole failure by checking backlash in the drive to see if it increases.
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