Filament sensor bracket

Simple bracket for your Creality Ender 3/Pro or any printer with the Ender-style filament holder. I didn't design in the mounting holes, they were easier to drill later when I decided where I wanted them. If your sensor is different you'll want the holes to match. I used the Creality sensor:
https://www.amazon.com/dp/B087325BPG?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1
You can assemble your own from switches and bits, but complete with cable it is hard to beat for $7. Same with the filament holder. Cheap and effective. I'd have bought the bracket if I found one I liked.

Other sensors mount down near the stepper, but I liked the idea of a little more of a guide out of the spool.

The gcode works on my Ender 3 Pro with PLA. YMMV.

Upgrade: for reasons that probably made sense at the time, I did not design the sensor to be dead center in the spool. It works fine, but if I did it again I might nudge it over. Also, because of a fluke in the design process, some viewers will show a phantom we