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Originally Posted by quickie25
We just tried that and we blew the fuse again. The whole things runs like mad until its put under stress. Based on the past posts, I think that we have a serious problem. We are going to dissasemble our gearboxes and check the driveshaft opening through the frame for any friction that may be occurring. If that doesnt solve the problem then we may drop the current drivedtrain altogether and create a direct drive system with sprockets and chains.
Thanks for the suggestions..any further ones please feel free to post,
Thanks,
Team 1380
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If that happens, you are most likely geared to high for your tire size and the CIMS. We are using chain to reduce the drill output to approx. 184 rpm for 12 inch tires. Reduction of 2.3:1. And that is like 10 ft/s. Still fairly fast. The rookie workshop reccomends to be in the range of 8 ft/s. Your best option would be to figure out if your reduction is right. The CIMS output 5500 no load and the drills output in the range of 20000 rpm with no transmissions. You would have to look at the specs for the transmission but low gear, all the way forward, is around 425 rpm and high is 1000+?? something. This is wear I would re-check figures so you will have enough torque. There are several good sheets on drivetrains in the white papers, but since you are running short on time I would get in contact with veteran teams around ATL to get some immediate help. It you find you are in a reasonable range there are other problem such as binding or problem with current (I doubt it would be this unless you are just running a low battery). Good luck and continue to ask questions.