OCD Prusa MK2/S X-Carriage Parallel Belt Mount.

THIS USES A 16T TOOTHED IDLER PULLEY SET UP AND NOT THE STOCK PRUSA 20T SMOOTH IDLER PULLEY!!!! YOU WILL NEED TO MODIFY YOUR X-END FOR THIS AS WELL. I ALSO HAVE DESIGNED THAT PART.

https://www.thingiverse.com/thing:2770019

Want to get rid of that offset on the back of your Prusa where the belt is secured? Ever notice that the X-Idler is larger than the stepper gear? Well, it is, and it causes torque on the belt.

This design removes the 20T smooth Idler and replaces it with a 16T Tooth