My Prusa i3 Y Belt Tensioner
thingiverse
Made this after I fixed the belt connection to my bed and then broke the original Rework tensioner. This is a bit more heavy duty. 5/5/2015--Update: Uploaded a new version of the 608 Bearing block, it now has captive holes for the 3mm nuts used to tension the bock. Instructions You will need two more nuts/washers to secure the main piece to the rods. You will need: 2 M3 x 40 mm bolts/screws (I tried 60mm long at first, but those hit the belt) 2 M3 washers 2 M3 nuts 1 608 bearing 1 M8 bolt 30 mm or longer 1 M8 washer 1 M8 Nut Use the two M3 Screws to tighten the tension.
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