3D printed bowden coupler ender 3
thingiverse
I hate those ptfe fittings.They have chewed my undefended bowden tube to an unrecognizible shape. So I designed this 2 part replacement. The base as a collet that shrinks as the nut screws, pinching the tube. In my experimentation the tube doesn't slip, nor the filament encounters any additional friction. Not only that but makes maintenance a lot easier. Just unscrew and the bowden tube can slip out. Use a 13mm wrench to tight everything up. CAD: https://cad.onshape.com/documents/3c4f1412af4a06d9ee7c9bf0/w/ce28bdad1bf6e0ca09ede2e2/e/e15b342f3fff3c9ec172853b Print settings: - PETG 245 C° , for a bit of elasticity for the collet - layer height 0.08 / 0.12 mm , for the threads - raft, the bottom surface is quite small - no need for supports
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