DIY cheap PTFE hotend tube for 3D printer
This DIY PTFE hotend tube will be most of all useful for RigidBot / RigidBotBig extruders, but also will be useful for J-head hotend, Delta Rostock extruder and may be some others but this all I know. The idea is to use 2 PTFE tubes one inside another, first is ID 2mm and OD 4mm, Read More