MendelMax Y End Idler with Belt Tensioning

I wanted to be able to tension my Y belt without having to work underneath the machine, so I decided to try adding a tensioner to the Y end idler. I have this mounted on my MendelMax and it seems to work very well. In fact you have to be careful not to over tighten it.

Edit, March 1, 2012

I fixed the mounts with the ridge by eliminating the ridge around and above the hole.