pic: Octocanum Module

[Chak]

Originally Posted by GeeTwo

I would also add some springs to lift the mecanum wheel off the floor when not in use to reduce drag and wear; they just need to be strong enough to lift the mecanum wheel, sprocket, bracket and chain. You should be able to anchor them to the top of the translucent bracket in the render by adding a couple of holes on either side of the cylinder.

Or you can use the piston (assuming it's a double piston) to lift the mecanum off the ground. Then you would need to actually attach the piston to the module, maybe using these rod ends from mcmasters.

I notice that you have an extra bearing on the end of the traction wheel shaft. What is it for?

For the bracket that holds the piston: one side is attached to the frame, what's the other side attached to?