Tevo Titan extruder adjustments

thingiverse

The Tevo Titan clone extruder (version of 2017) has several shortcomings: - the "nut" into which the pneumatic connector (that shiny one which connects PTFE tube to the extruder) is inserted has no threads, Tevo relies on the coppling tapping its own thread into the plastic; not so great idea - if your hotend and/or nozzle is clogged, this powerfull 4:1 extruder (you remember, it has a 4ish steps multiplicator in Marlin) will do its job and extrude the coppler from the extruder. With the remains of the threads. Also, this nut is round-shaped, so depending on the force needed, it will just turn in the casing. My "fitting_nut_with_threads_m10_1.stl" addresses both points: it has M10 threads (allowing to connect M10-PC4 pneumatic fitting) and it is U-shaped, so that it cannot turn freely. - the tensioning screw is placed in a way you cannot access it (because of a aluminium profile blocking the access). You can either shorten your wrench (6mm works) or use the "e_miniwrench.stl". It is not perfect, but it does its job.You will need to replace it every now and then (it is plastic, after all!), but it prints in under 30 minutes, so...