ptfe tube holder

thingiverse

This mod ensures the z carriage remains parallel to the tube. Created an adapter for 3 mm PTFE tubes and another for a 4 mm tube, which features a .5 mm oversized hole to facilitate easy insertion. Once inserted, secure the tube with glue and add a dust-catching filter or double-sided tape around it to hold it in place. I used a 5-minute epoxy mixture for this purpose. It's crucial that the adhesive does not obstruct or touch the tube, as friction may develop and hinder filament movement. The design provides an open space for a small square filter piece, preventing dust from entering the tube itself. This solution can be replaced with any suitable filter that fits in the designated area.