Wanhao D9 Y Axis Belt Tensioner - 6mm version AND 9mm version

Tensioner for the Y axis belt on the Wanhao Duplicator 9
if you downloaded V6, please delete and re-download this, it corrects a cosmetic bad fillet on the idler holder

I've included TWO versions, one for the original 6mm belt and one for the newer 9mm belt


Simply screw the two screws at the front to move the carriage and tighten the belt!
Move each a few turns at a time only to ensure the idler holder stays fairly level.
When you’re finished tightening, ensure an even space on the l