Re: Mecanum Newbie
 

On 810, we direct drive our mecanum wheels off of BaneBots P80 planetary gearboxes driven by a single CIM motor.

Re: Mecanum Newbie
 

Last year we direct-drove 8" mecanums off of toughbox nanos with their standard gearing.

Re: Mecanum Newbie
 

My team wants to go with mecanum/omni this year also. no one can really tell you what gearbox is better. it comes down to your robot and what you want to do with it. i would have to double check but i think the cimple gearbox and the tough box both use the same gear ratios. so mechanically it wouldnt make a difference. my team is personally going to use the GEM 2 stage (maybe 3 stage?) gear box if we decide to go with mecanum/omni.

Re: Mecanum Newbie
 

No toughboxes are 15:1 i believe, whereas cimples are something like 4.8:1

Re: Mecanum Newbie
 

Last year Team 967 used 8" mecanums directly driven with regular 12.75:1 toughboxes. We're going to do something similar again (we see no reason not to use Nanos this year), because it was nice to save some weight (no chains) and some time (no chains). It was a pretty fast drive. At its full competition weight, it needed a bit of a running start to get up the 45 degree ramps last year, so we would have geared it down a little bit for last year's game if we had it to do over again. But this year has a flat field, so we are going with the same thing.

You would not want to directly drive 8" mecanums with 4.67:1 Cimple boxes. It would be interesting to see how much you can push the speed beyond the standard 12.75 ratio, though.

Re: Mecanum Newbie
 

i would personally go with the old touch boxes(or some other transmission with a higher ratio) because they give more torque and that's needed when using a mechanum drive. as far as chaining or direct drive, my experience has made me go for the direct drive so you don't have to deal with chain and since this game isn't going to be terribly aggressive, i wouldn't worry about bending an axle. 1510 is going for a direct drive anyways.

Re: Mecanum Newbie
 

What gives you the impression that this game won't be terrible aggressive?