WHeels on your robot.

SO our competition is getting closer. Our wheels our slanted. Can someone tell me the proper way to put the wheels on?

You need to put them in between two c-channels. Also be sure to have c-channel on top and standoffs next to the wheels for support.

So you do not need collar at all for the wheels?
We put collars on out wheels and that is why I think they are not working

You do, but it is really important to do what I put above. Do you have pictures?