This is version 2. The photo's are from version 1. That version was deleted because it interfered with the bed travel in the “Y” axis.
Because of the printer location and the fact that I'm right-handed I have a habit of laying my left arm across the table pulley and often my arm hair and skin will get caught in the belt drive while working on the printer. OCH!
This protects me and keeps errant dust and dirt from getting in the works.
I designed it to be tight fit. Careful not to crack it as you put it on.
The author hasn't provided the model origin yet.