2826 is using a lot of printed drive components this year. All belt pulleys and a few selective gears have made the RP transisition.
For our drive:
Based on Brandon's recommendation on C-C belt drives from talking to him at IRI last year:
-26T 15mm wide AT5 belt. 9% more torque capacity at the same tension than HTD or GT2
-SLS Nylon
-750 DPI
-We get these from the MSOE Rapid Prototype Center out of Milwaukee
-We have been using them all summer and on our competition bot through a lot of brutal defensive sessions
-We generated our model from
Rushgears.com for gears and
us.misumi-ec.com for belt pulleys. We used this so much in the past, we ended up spending a bit of time getting blanks for a bunch of gear sizes and profiles and adding them to our CAD library
Conclusion: Can't be beat. If you can get an SLS sponsor, I highly recommend it.