Smart Spool Holder (runout, jam sensor)

the original work said it should work with micro switch with roller, but as soon as a i test fitted one cover i saw that it was designed for normal limit switch

i just adjusted the model to work with the micro switch and modified the axle, so it can handle bigger spools

you can optionally change the metric nuts and bolts with imperial ones
1/8" x 1/2"
5/16"