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Unread 05-01-2010, 17:09
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,4lex S. ,4lex S. is offline
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AKA: Alex Strong
FRC #2702 (REBotics)
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Re: pic: 2 Weeks Without Homework

Thanks for the input and comments.

Quote:
How do you tension the drive chains? Sliding blocks like 254/968?
The tensioning system is very similar to that of the Universal Chassis by Team 221 LLC. Essentially the floating block is moved back and forth by a cap screw and threaded hole in the block. I can take a wireframe picture later if clarification is needed.

Quote:
Few questions.

Whats the weight?

Is that plexi-glass that the electronics are mounted on?

What type of gearbox? (Sorry, I can't really tell from the picture.)
I am currently unsure of the weight, as I don't exactly trust the 42 lbs Inventor spit out. Once I am done the BOM (if I ever finish ) I should have a better estimate. The frame is pretty light compared to others I have worked on though.

The electronics are mounted on a thin plexi layered on thin aluminium sheet metal (which is not visible). The reason for this was mostly electrical isolation for the control system.

The gearboxes are modified AM Supershifters with the black covers removed, standoffs installed, and a custom long output shaft to interface with the AM performance wheels.

Quote:
I have to say I like the nice clean bumper mount rails...
That was an almost direct reverse engineer of the 2009 254/968 bumper mount system. Whoever came up with that design deserves a cookie for saving West Coast Drive.
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