PLA or PETG is ok for this model (depending on what you print. ASA/ABS is the safer bet considering how close to the nozzle this is) Suggest using Tree supports and keeping it in the orientation that loads in as I have found flipping the bottom part over causes bits to break off when removing supports.
The housing body can also printed with tree supports (suggested) to use as a cable holder.
I originally designed this because I didn't really want to mod the printhead too much and figured that I could do it this way to save some trouble.
Useful if you want an up close and personal view on what your printer is doing.
Any 5.5mm Endoscope should work for this modification.
The author remixed this model.