Railcore PTFE Bowden Tube Guide
thingiverse
This is a PTFE tube guide for the Railcore II 3D printer. I use a 3mm PTFE tube for friction reduction, but a 1.75mm will also work (assuming you are using 1.75mm filament). You will need 2 M3x12 and 1 M3x8 screw. You will also need 2 m3 nuts installed in the 1515 extrusion in the railcore, and 1 m3 locking nut for the PTFE clamp.
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