Filament Joiner Jig

thingiverse

I decided to tackle the leftover filament scraps at the end of my spools. After scouring YouTube for inspiration, I couldn't find many successful tutorials on joining these small pieces together. So, I shifted my focus to Thingiverse and stumbled upon a solution that sparked my interest. To execute this project, you'll need a length of Bowden tube along with two fittings. Fortunately, I had the spare fitting from my printer and an old one from my extruder upgrade lying around. Keep in mind that this method is best suited for short pieces of filament. To join them together, simply insert both ends into the tube and apply heat to the middle section. As the plastic softens, push the two ends together until they're secure. Be patient and let the joint cool down completely before attempting to pull the filament through. Resist the temptation to yank on the filament – you'll need to gently push it through the tube instead. Once the join is solid, you can start pulling the filament. This innovative solution is a remix of nilp0inter's solder spool holder design. I borrowed his frame because, let's be honest, I'm not exactly thrilled about spending extra time building one from scratch.