Adjustable Garage Door Sensor switch. Mounts on 45 degree 2x4 near top of door.
It must be near top or door will catch when moving up/down and break switch.
I made a few different sizes because the left door come sto reset much further from wall on top then the right.

-#4 Brass wood screw (Holds Micro switch in place)
-#6 3/8" Wood screw (For mounting to 2x4")
-#6 1" Machine Screw (For adjusting depth of switch)

https://www.tinkercad.com/things/3rIqIE5UTr8-garage-door-sensors

Note:I was using reed switches on the side of the doors but the left one moved side to side why too much and kept breaking the switches or was out of range.

FlashForge

Creator Pro

Yes

Yes

.2

45

Might need to widen holes for screws
Supports are only needed on the part 1s.