3-1 Speed mutiplier for remote direct drive
thingiverse
So I remade this because it works well, and the bearing holes weren't the right size and I wanted a way to clamp down on the tubing. Place some supports under the clamping part. https://youtu.be/MwEhKZO7G10 I printed mine with super dry taulman bridge nylon, 3 walls, 4 bottom layers, 5 top layers onto watered down 3d eez on a build plate @ 90C, print temperature 288C. Reference original design for BOM. I also added some precision shims (openbuilds) but washers should also work well - the point is to clamp down on the bearings so they are stable. The bolt used is a 5mmx15mm - with a lock nut. also included are cad files for folks use out there.
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