MK8 Extruder TPU Mod

myminifactory

This is a mod for an "MK8" extruder to allow for easier printing of TPU. It is a part that can be screwed on to the MK8 extruder and helps to constrain the filament path. This can be helpful when printing TPU, as it has the ability to worm out of the gears. Note: this particular part is for 1.75mm filament.  I had seen some other versions of this idea, but the filament path needed a little bit of help (sliiightly wider opening, and a bit more clearance).  I printed this out of PETG but PLA would probably work just fine.  I included a STL file for those of you who just want to print it and a .fcstd file if you want to edit it with FreeCAD.