Belt protector (1 ball bearing block) for Cocoon Create 3D (Wanhao Duplicator)

Belt protector for the Cocoon Create or Wanhao Duplicator - Including the roller wheel design.
I designed it to be attached to one ball bearing block only, so you will need the '45mm long' ball bearing mod if you haven't done it already (see attached photos).
I used two 3mmx10mm hex screws and two 3mm nyloc nuts.
The two arms that insert into the block's holes are a bit thin. I used masking tape to increase the thickness and now it works like a charm (you can modify it at your leisure).
Pr