This is runout sensor for Fun Size Recreator3d.

Switch cuts power after pull is finished.

Parts:

1x 10t85 micro switch.

1x m3 - lenght 20mm .

1x m3 self-locking nut.

2x m4 - lenght 15mm.

1x m4  T-nut.

and anithing u can use as weight for switch trigger.

Print with PET.