Filament Welder
Have us print this for you
PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
A jig for welding 1.75mm PLA filament.
Welded filament slides smoothly through 2mm inner diameter tubing without sanding.
A PTFE tube and coil spring are required separately.
-PTFE tube: Length: 40mm, ID x OD: 1.8mmx2.6mm, h ttps://amzn.to/3AWOsoN
-Coil spring: Wire Diameter: 0.3mm; Outer Diameter: 3.4mm, h ttps://amzn.to/3KVjfqB
When attaching the tube, bend and insert it from the inside of the donut.
WHY DO YOU NEED A SPRING?
When you heat the PTFE tube, it softens. Two filaments are pushed in from both sides in that state, and the tube expands at the butted part. A spring is installed to prevent this expansion. Therefore, when you choose a spring, its inner diameter should be approximately the same as the outer diameter of the tube.
How to use
https://youtu.be/2PpO4AbOWgg
This welder is designed to join the last filament of a roll to a new roll.
When using this welder, remove the filament from the printer, connect it to a new roll, wind it up, and re-insert it into the printer.
I made a jig for winding filament with an electric drill.
https://www.thingiverse.com/thing:5557597
WELDING TIPS
(1) Insert two filaments into a doughnut-shaped jig and butt them in the center.
(2) Heat each side for about 1 second.
(3) Lightly push in the two filaments.
(4) After waiting for about 5 seconds, sandwich the center of the donut with two coin-shaped jigs.
(5) Gently push out the filament until the weld comes out.
(6) Done.
I searched for springs on…
