Ender DD Direct Drive Filament Runout Sensor Mount

thingiverse

This is a bracket that can mount on 2020 aluminium profile by slotting/sliding in from side and it holds those 1-2 bucks filament runout sensors with 3 wires and LED. If thickness is too much and you want to reduce it, you can make it lay flat on Z and non-uniform scale down to %50 only for Z, so you will need shorter screws, too, provided you use more infill and stiffer material or OK with more free play when extruder yanks the filament down. It's a just nice fit on my Ender 3 v2, if you require more or less gap on slot head (tighter or looser fit to profile), FreeCAD design is included to modify as you desire. I'm using a thinner print to hang the slack of the cable however it's not necessary if you will use other means to guide the wires of sensor.