NRG-FRP 301 BeltRoller Clamp and SnapIn styles

thingiverse

Inspired by other designs, I remixed it to have a clamp style. Flex is now completely reduced. Still no drilling any holes in the seat. You will have to put bolts through the printed pieces to clamp them tight. You will need two M4 30mm bolts, two M4 25mm washers, and two M4 20mm washers. One more thing, the belt knuckle *barely* made it through the opening of the printed pieces. I am providing a picture of the one I have, in case it helps. It is tight, but cannot be helped because of the relatively small holes that the seat has for a belt to begin with. I printed with one of the roller sides somewhat down (not flat unfortunately) and with supports in a few key places. It was a bit of a pain, but it prints. 0.30mm and 25% looks to be fine. Providing the four STLs for the clamps as well as the F3D file with both the old (snap-in) and the new (clamp) pieces in it, in case you want to change things around. I am a neophyte F360 user so caveat emptor! A walkthrough with some pics is here (https://medium.com/@luisblando/3d-printer-tension-belt-roller-73a78af4c566), but if you are thinking of doing your own design, the most important body of the F3D file is the "NRG-FRP301-HoleForBelt". That one took multiple test prints to get right. That's the "air" volume that goes through the belt hole, and it fits tightly and precisely on my seat. From that, you can design something much better. Good luck.