HIC Prusa I3 y-idler-w-tensioner

I had an issue with my y belt constantly becoming loose, so I made this to help with that issue until I could think of another solution. You'll end up loosing about 20mm on the y plane, but I thought it was a decent trade off considering I can now adjust the tension on the fly.

To build this, you'll use the existing m3 nuts and bolts holding the y pulley in place with the addition of a m3 x 40mm - 60mm bolt and wing nut.