935 as of last night
 

This is RaileRobotics prototype mecanum chassis as of last night.

Re: 935 as of last night
 

all I can say is WOW. There seem to be many teams trying out this mecanum chassis! :D

Looks good, have any other pics, like closer up, the mecanum modules, and maybe some video?

Re: 935 as of last night
 

*wipes a tear from eye*

It's beautiful...

Re: 935 as of last night
 

how well does it drive?

Re: 935 as of last night
 

That is beautiful, I hope it runs as good as it looks. I hope we get a game this year that will better take advantage of these types of these very maneuverable drive systems.

Re: 935 as of last night
 

Beautiful.

Would you run it like that, or would there be some protective frame around it? (Or bumpers, even?)

Re: 935 as of last night
 

I'd hate to burst your bubble, but are those mecanums in the wrong position?

I think the wheels need to be switched front to back or left to right.

I may be wrong, though.

Re: 935 as of last night
 

It'll work as pictured, but I agree that the wheels are backward (or upside down) and should be rearranged.

We didn't quite understand the importance of how the wheels were arranged until we made the same mistake ourselves. It became obvious pretty quickly.

Re: 935 as of last night
 

The side the wheels are on is irrelevant as long as the angle of the rollers is different from left to right and front to back. In other words the rollers either need to point in or out but not both left or both right.

If the wheels were to be switched from the current position then it would require the oppisite input to strafe left or right.

Re: 935 as of last night
 

Actually, the position of the wheels is quite relevant to how the chassis will perform on the field.

As your wheels are arranged currently, it's possible to rotate your robot in place while under no power. During a match, a competing robot could push you at the corner, causing your robot to spin in the same manner. There's no way to apply power to oppose that motion.

Re: 935 as of last night
 

Also, it seems like it wont rotate as well when the wheels are being driven.

Re: 935 as of last night
 

It drives much as a Mecanum should, albeit it does have a tendency to drift around the floor. This is mostly due to the fact that the robot weighs less than 50 pounds and we have been driving on polished concrete.

Re: 935 as of last night
 

Thank you very much for your input. Does this look better.

Re: 935 as of last night
 

Yep, that'll do it.

Did you switch them just now?

Re: 935 as of last night
 

Yes we did change them now. It took us less than 5 minutes to change our wheels. We pull out the side bearings and the drive shafts and can switch the wheels from the bottom of the chassis.