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Unread 21-12-2014, 16:50
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FRC #0228 (GUS Robotics); FRC #2170 (Titanium Tomahawks)
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Re: VersaFrame by Vex Robotics

Quote:
Originally Posted by Monochron View Post
My bad, replace the word "metal" with "mount hole". We tore the metal in a couple places our first year by having to drill multiple holes close to each other on some sheet metal. The metal itself held up, but the bolt in the correct hole tore its way over to a nearby hole and came out. That is what I was referring to.
I guess I'm confused as to why you're not using the existing hole pattern to mount stuff, with the possible addition of half-inch holes in order to install more rivets. With the 1x1 tubing we did have a lot of wear problems with bolting through, mostly due to the incredibly thin wall of such a tube - these problems did not persist when stepping up to 1/16 or 1/8 wall tube.

If you're not really using the hole pattern, there is a lot less reason to buy the VersaFrame tubing profiles.

Quote:
Originally Posted by JesseK View Post
This, in my experience, has been fine for everything but a drive train. Getting 4 rails to line up squarely (< 1/32" deviation in the cross-diagonal measurements) using only gussets takes a LONG time. Well, maybe there's a better way than how we used to do it. I'm all ears for that, but it has to be square.

Good point on the cut-to-length though. It's a given for my team and often overlooked in discussions.
We have a lot more success by clamping the frame square using large C-clamps before riveting. Still takes awhile to get it square, but it holds very nicely once its there allowing for easy mass riveting.
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