Summary Hi, This part is to replace the fixed spanner for bowden extruder. it's for my Tevo Tarantula, but i'm sure it can be used with a lot of bowden type printer. With this part, there is no need to buy any additional stuff. just replace the existing spanner... the hole for the pushfit is not threaded, I just toroughly push and screw ^^ Enjoy Print Settings Printer: Hephestos 1 Rafts: No Supports: Doesn't Matter Resolution: 0.2 Infill: 20% Post-Printing If needed... May need some drill/clean for the filament's hole. How I Designed This Why i did it Well, i was a bit upset having the PTFE tube moving down and clash with the pulley... maybe my pushfit is not the right one. but i read on internet that other people faced the same issue. Part is quite simple so i redesign it.