Reverse Bowden integrated Fillament runoutsensor case for ender style sensors

IMPORTANT!!!
the sensor has to be installed before the extruder not after

Additional Hardware

u should have everything u need after some time of owning a printer but if not here is the list 

1x sensor

2x m2.5 screws (the ones from the original sensor case should fit)

some length of PTFE tube

1x PC4-M10 pneumatic coupler the one u usually find on the hot end

Print settings:

0.2 layer hight

Material PLA (if in a enclosure u might want to use abs or petg)

2-3 walls 

Gyroid infill 10-15%

if u have trouble with the overhangs on the big hole u might want to orientate the model so the overhang is facing ur part fan.

how to assemble:

after printing, install the sensor and the coupler in their designated spots (as shown in the picture)

install the PTFE tube and check how much length u want/need mark the area where the sensor arm touches the tube.

take out the tubing and carefully cut a V shaped notch out of the tube (where u marked it)

reinstall the tube and test with some fillament if the sensor clicks if not u might have to cut ur slot bigger