Filament runout sensor bracket

thingiverse

Converted my Ender 3 Pro to direct drive and could not find a bracket that would work with the stock Creality sensor without changing the spool mount, or putting the filament in a bind. This lets me use the stock spool mount turned around to the front. It may cause issues with taller prints if the extruder gets too close. But this should be fine on all but the prints that max out an Ender 3 print capacity. I have the wire tucked in the slots of the frame rails, with slot covers over them to keep them safe and out of the way of the gantry. They are routed over to, then down, the left side upright (by the z-axis lead screw) and coming back out above the Z-axis motor. This let me use the original wire that came with the sensor with out splicing, and a fairly clean install. You will need 4 M3 nuts and 4 M3x18 flat head bolts to accommodate the thicker plastic bracket. I did not have any flat head bolts that size, so I used some M3x16 socket head cap bolts that I already had and slightly modified the switch housing with a drill bit so they would sit flush.