swerve sketch

[jspatz1]

How bout this.

[DonRotolo]

To explain that image above, the big sprocket on top is used to turn the whole module, while the shaft with the arrows is what is turned to make the wheel move (through some right-angle gears and, in this case, a chain). That shaft is co-axially mounted (on bearings) to the module, so the sprocket and the shaft spin independently from each other.

[jspatz1]

Sorry to trick you Don. This is actually our motorized module from 2010 and is not a co-axial module. The top stem is a single fixed stem that mounts in a pivot bearing. The exterior chain is one of two chain steps from the motor pinion to the wheel sprocket. Perhaps I should have used this view instead:

[eitanniv]

thank you very much! that's exactly what i needed

[Alan Anderson]

Originally Posted by jspatz1

Sorry to trick you Don. This is actually our motorized module from 2010 and is not a co-axial module.

I too interpreted the drawing as showing the top post rotating along with the wheel. It's not obvious that the upper arrow belongs with the sprocket.

[jspatz1]

Take 3.