Adimlab Gantry-S Y Tensioner

thingiverse

This is a remix of CR-10 Y-Axis Belt Tensioner Remix by skartz. I changed as little as possible because I really liked the design. The things I did change were to make this work on the Gantry, but it ended up being more than that. As it turns out, I had to change more than I thought, but kept the essential design intact. Mainly to how this thing is mounted and the clearance needed on the end of the 4020 extrusion. To install: 1. Remove the two side screws from the 4020 extrusion, being careful to retain the OEM V slot nuts. 2. Remove the hardware from the bracket for the idler. You will only need the idler itself. 3. Put the M4 x 30 screw into the back of the pulley and place a nut on the other side of the pulley to keep this screw from spinning. A hex head screw could also be used here. 4. Place the belt around the idler, then use the M4 x 25 screw and M4 nylock nut to install the idler onto the pulley. Be careful to keep the orientation of the belt correct at all times. 5. Flip the bracket over onto its back and slide the pulley into the bracket. Flip it back over and place it onto the end of the 4020 extrusion. Don't forget to put the original V slot nuts into the end of the 4020 extrusion as well. 6. Put the endcap on the end of the bracket, place the knob onto the end of the tension screw, and tighten it up a little bit at first. 7. Make sure all screws are tight and the fit is good before adjusting belt tension to perfection. Hardware needed: 1x M4 x 30 and M4 nut for the tension screw 1x M4 nylock nut for the knob 1x M4 x 25 and M4 nylock nut to attach the idler to the pulley assembly 2x M4 x 10 and the original V slot nuts to mount onto the 4020 extrusion.