Now I mount the bending arm on the shaft of stepper motor, and next I mount the wire guider on the feeder stepper motor mount. At last I mount a roller bearing to hold the roll of wire, then PCB is ...

Supports not needed on lid. Once printing is complete, drill holes into the outer 4 mounting points on the arduino case. Drill the holes in the arduino mounting area in the case and screw the arduino ...

So to test it, mount the perf board on the door frame and magnet on the door so that it can detect the door movement. The below picture shows how the magnet and Hall sensors are fixed on the door. Now ...