Bowden tube threading tool

thingiverse

If you're accident-prone like me, you'll find it nearly impossible to keep the bowden tube perfectly straight while trying to thread an M4 nut into place. To overcome this challenge, I use a tool designed specifically for keeping the bowden tube in alignment with the nut during threading. The tool also features a strategically located hole at the bottom, allowing for easy re-drilling of the bowden tube once the nut has reduced its size. The assembly process is straightforward: 1. Print out the jig. 2. Insert the M4 nut into the hexagonal recess. 3. Snap the two parts together securely. 4. Grasp the PTFE tube firmly in your hand and gently push it down from the top, twisting it into place until you feel the bowden tube pressing the pieces of the jig apart. 5. With the assembly still intact, use a drill bit to carefully re-drill the hole in the PTFE tube, which has likely constricted due to the compression caused by threading.