Are gears hard to mate?

I have a worm, worm gear, rack and rack gear.

I added all these components to my assembly and they look fine.

I would like to mate them together so turning the worm results in the gears rolling on the rack.

The movement is not required in my assembly, but I saw it on a video and thought it looked fun.

Is this a difficult task designed for advanced users?

SolidworksAssemblies