The final step is to measure and cut the PTFE tubing. It comes a little long. To measure the
correct length insert one end into the external mount. Next, move the extruder head to the
remote extreme positions and make sure there’s no pinching or extreme bends. You want it to
be as short as possible, but not so short that it causes undo bending of the filament as it
travels to the hot end. Once you cut the hot-end of the PTFE tube it can be inserted into the
brass fitting. The PTFE tube should now be inserted into fittings on both ends.
You can now insert filament from the outside of the enclosure and push it through until it
appears right above the extruder where you can feed it into the extruder as you would
normally.
Copyright 2018 3DUpfitters
16
