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Unread 09-02-2017, 14:14
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cbale2000 cbale2000 is offline
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AKA: Chris Bale
FRC #5712 (Gray Matter)
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Re: H-Drive Strafing issues

Quote:
Originally Posted by GeeTwo View Post
I suspect you were using acrylic (plexiglass), not polycarbonate (lexan). See my post in the Quotes thread yesterday for a description of the difference.
I don't think so, unless the supplier screwed up and gave us the wrong stuff. We did waterjet it if that makes any difference.

Quote:
Originally Posted by Peyton Yeung View Post
It never ran against other robots but it drove well. Each wheel was a single reduction off of a CIM which kept the gear meshes simple. It was incredibly flexible (both a blessing and a curse) which made for constant contact with the carpet. Never had cracking with the 1/8" PC even with the cold bending for the flanges.
I'm a bit surprised you were able to keep the gears lined up with the amount of flex I would expect it to have plus the weight of the CIM motors hanging off. Makes sense that it didn't drive in a competition though, I'm not sure even bumpers would save that frame from a game like this year or last.


Quote:
Originally Posted by messer5740 View Post
So think we will be good once we put it on the carpet?
The carpet will definitely help but I STRONGLY recommend not waiting till you get to your first competition to find out. Try to find someone nearby with a practice field or pick up a small section of carpet comparable to what's used on the field from a local carpet store. There are few things worse then going to a competition and finding out your drive system doesn't run like you expect it to.
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2005-2008: FRC 703 Phoenix - Driver
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Last edited by cbale2000 : 09-02-2017 at 14:18.
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