|
Re: 6 CIM Drivetrains... What's Your Experience?
We used the 7:1 (84T) single speed gearbox from VexPro, on a sheet metal wide 4WD chassis with 4 inch AM performance wheels and roughtop. The only thing I would change is our choice of tread -- I think nitrile would have held up better. We ended up changing treads after every match in which we played defense. That was most of our matches because our scoring mechanism suffered from complexity (another story). The AM 1 inch wide roughtop that we used de-laminated (i.e., tread separated from woven structure) whenever we got into a good pushing contest. We ended up winning several of those contests anyway, but spending several minutes changing wheels in the pits was not fun. Especially in District competition with frequent quick-turn matches when there is no time to return to the pit at all.
TL;DR -- if you use 6 CIMs, make sure your treads can take the torque.
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
 since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)
|