A great addition, should be standard for feeding a belt through an aluminum y-carriage. Thanks for the design.
I was surprised it didn't come with one to be honest...and I really didn't want to file down any aluminium :)
Definitely. I was a bit leery of the hard edge, so I used some tape while I printed them out; I wish I had thought of it in advance.
Filing the aluminum hole didn't hold much appeal for me either.