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Unread 16-03-2016, 11:57
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JohnFogarty JohnFogarty is offline
FTC, I have returned.
AKA: @doctorfogarty
FTC #11444 (Garnet Squadron) & FRC#1102 (M'Aiken Magic)
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Join Date: Aug 2009
Rookie Year: 2006
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Re: PCH District: Albany & Dalton Predictions

Quote:
Originally Posted by sdcantrell56 View Post
What diameter wheels and types of wheels are you guys running? Have you run any numbers on tooth strength or tension in the chain on such small sprockets? This game is particularly brutal compared to any year past so as Anupam says, be ready with backups.
8" diameter pneumatic wheels from a local source. The link below is the exact same wheel we use. We just didn't pay anything near that price to get them. Nor did we use the hubs pictured.

http://www.caremedicalsource.com/Sho...e-5-16-Bearing

I ran the numbers on tensioning. I didn't run any numbers on tooth strength. I'll say this. I've run 2 competitions already with the same chain in tube sprockets on 4901's robot. Beyond the problems both teams had to fix initially 4901 ran the entire Orlando regional without breaking chain once. I'm confident 5632, since implementing the same fixes that 4901 had to, won't experience any issues. The biggest issue we had with the 5632 machine was before we switched chain types was that when a driver would suddenly change directions it would cause the chain to catch and then literally rip the caught link apart.

Again, we are prepared with spares regardless.
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John Fogarty
2010 FTC World Championship Winner & 2013-2014 FRC Orlando Regional Winner
Mentor FRC Team 1102 M'Aiken Magic
"Head Bot Coach" FTC Team 11444 Garnet Squadron
Former Student & Mentor FLL 1102, FTC 1102 & FTC 3864, FRC 1772, FRC 5632
2013 FTC World Championship Guest Speaker

Last edited by JohnFogarty : 16-03-2016 at 15:50.
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