Heatbed cable strain relief Wanhao Duplicator i3 (low-profile)

thingiverse

I completely reimagined Pawpawpaw85's strain relief design to minimize profile, eliminating any chance of nozzle coolers interfering at maximum Y-extension when using PEI/Buildtak directly on the heatbed. This updated design boasts an elongated nut-trap that fits perfectly in both Duplicator v1 models with a bolt hole approximately 3mm from the edge and v2 and newer models (Monoprice/Cocoon, etc.) with a hidden bolt hole around 6mm from the edge. To get started, you'll need: * 1 M3x10mm or M3x12mm bolt (preferably a button head) * 1 M3 nut (nyloc preferred) * 2 zip ties * 1 piece of scotch tape to hold the nut in place during installation if the nut trap isn't tight enough Here's how to install: * Unplug your printer from AC/mains power * Reveal the bolt hole near the heatbed wires + If your printer came with a build surface adhered to the heatbed, you'll need to feel around for it and punch through with a hex key + Carefully trim any bits of build surface around the hole with a knife or side cutters – don't pull or peel off the build layer bits * Install the M3 nut in the nut-trap and secure it in place with a piece of tape * Place the strain-relief part with the nut under the heat bed, aligning it with the bolt hole * Drop the bolt into the hole and engage the threads * Keep the strain-relief part snug against the edge of the build plate and tighten the bolt * Route the wires under the strain-relief part and secure them with zip ties * Manually test the Y axis by moving the build plate all the way to the front and all the way to the back – adjust the zip-ties as needed * Plug in AC/mains power, ensuring the heatbed is working * Run Z-calibration