Quote:
Originally Posted by lynca
We are attempting octocanum this year. We have working field centric & shifting control.
For more details about our design , check out this page.
http://2014.discobots.org/node/94
As of late, with our practice robot,
We have broken three VEXpro mecanum 4" rollers and
here are a couple questions we are facing at the moment.
How to reduce stress on the mecanum rollers ?
a. proper amount of frame flexiblity ?
b. slop in the axles (using churro vs VEXpro black hex)
c. limiting power of wheels during strafing to avoid stress on rollers |
Hey Andrew,
How long had you driven the robot? We have found reduced life but failure typically occurred after ~4hrs of heavy driving (far more than a regional).
You can keep an eye on the rollers by checking how easy it is to flex them to the max extents.
We are currently working on a fix but plastic part revisions have a significant lead time, due to the shortened life span we have highly discounted the replacement roller kits to keep teams rolling.
The VEXpro Hex stock is 7075 Aluminum vs the "Churro" which is 6063, very different materials for different jobs.
-Aren