MK3 Zaribo Filament Sensor Cover for Bowden Tubing

EDIT 9/30: I added two new versions of the cover to accommodate pass-through couplings which let you pull the ptfe bowden tube through to the filament sensor. This gets rid of the tiny ptfe bit and helps with mmu2 feeding and retraction. One version is for the old Zaribo design which I still use (pictured) and the second is for the new Zaribo R3 mod design. I use the push through pneumatic couplings found here: https://www.amazon.com/gp/product/B01IB81IHG/ref=oh_aui_search_detailpage?ie=UTF8&psc