Maslow CNC Weight Chain Tensioner

thingiverse

Inspired by the Maslow Chain Tensioner / Keeper, I designed a wood-based equivalent that's just as effective. I used my Maslow CNC and Prusa 3D Printer to produce all the necessary parts. To get started, you'll need the following materials: * 15 mm thick wood for the components cut on the Maslow itself * 10 mm thick wood as spacers for the plate bar * 12 skateboard bearings * M8 screws (45 mm long, 12 in total), nuts (24 in total) and washers (24 in total) * Woodscrews * Rope (around 8-10 meters long) * A plate bar measuring 2500 x 35.5 x 3 mm (or a similar product) You can find the plate bar at Bauhaus, or a similar supplier. The sled is adjustable, allowing for some fine-tuning. For weights, I'm currently using 1.5 liter water bottles, but I think 3 kg of weight would be more effective in the long run. Here's how to assemble this chain tensioner: * 3D print 10 wheels * 3D print 2 chain wheels * Cut out two sleds * Cut four side panels and two top panels (note that these differ in terms of hole placement) * Mount the plate bar centered on the top frame, using a 10 mm spacer made from small wood strips * Assemble the sleds and attach them to the plate bar (use a screw, washer, wheel/bearing, washer, nut, sled, and finally another nut for each wheel) * Secure the wood deflection near the motors (check out the pictures for reference) * Attach the chain to the sleds * Tie the rope to the sleds and weights I hope this design helps others with their Maslow CNC's chain tension. Feel free to share your own builds or suggest improvements!