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Unread 04-01-2013, 13:45
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Re: Sheet Metal, 8-Wheel Drive Design

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Originally Posted by jwfoss View Post
In the attachment below, I quickly drew up a set of chassis rails (looking at the robot from the front). The left side shows the configuration used by the original poster. In this configuration the height of the rails is determined by the height of the gearbox to avoid having to remove a section of the flange. The right shows the flange flipped the other way. Doing this allows height of the rails to be independent of transmission, and allows the mounting of a tower to the internal surface, while retaining a full flange.

There are many ways to configure the rails, our most recent concept has the outer c rail flipped as well. You can see some of FRC2168s cad development as well as some of our past designs by reading my blog (click my name in my signature).

Please let me know if this needs further discussion.
Thanks; that is was I suspected you might've meant, but wanted to be sure. I think that I'd likely mount structure to the drive by sitting it atop the flanges rather than by abutting the inside face, so it hadn't occurred to me that the flange might get in the way.
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Unread 06-01-2013, 14:53
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Re: Sheet Metal, 8-Wheel Drive Design

27x33 in long configuration translates to 120 total inches on the frame perimeter. The rules this year limit you to 112 inches on the frame perimeter.
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Unread 06-01-2013, 17:48
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Re: Sheet Metal, 8-Wheel Drive Design

Quote:
Originally Posted by seinchin View Post
27x33 in long configuration translates to 120 total inches on the frame perimeter. The rules this year limit you to 112 inches on the frame perimeter.
A new chassis, based on this one, is in the works. It complies with this year's dimensions. It is 6WD wide with 4inch Colsons and the VEXPRO 6 Cim gearboxes.
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Unread 06-01-2013, 17:53
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Re: Sheet Metal, 8-Wheel Drive Design

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Originally Posted by n1ckd2012 View Post
A new chassis, based on this one, is in the works. It complies with this year's dimensions. It is 6WD wide with 4inch Colsons and the VEXPRO 6 Cim gearboxes.
Do you plan on driving that with 6 CIMs? We were looking into using that gearbox with 2 CIMs and something else...maybe a 775 through a planetary, or a BAG motor put through something(VersaPlanetary won't work for this, right? EDIT: Nevermind, I just saw that there is a CIM output kit)

Last edited by Steven Donow : 06-01-2013 at 17:57. Reason: actually looked at VersaPlanetary product page
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