PCB drill, mini drill

Good and sturdy mini drill for PCB manufacturing.

Mini drill or PCB drill. Use 540 RC car motor.
You need 2 pcs 89 mm long 8 mm rods.
And M 4 X 16 mm screw 4 pcs, M 4 X 6 mm screw 2 pcs, M 3 X 10 mm screw 4 pcs.
M 4 nut 1 pcs, one or two M 4 warher,
M 6 X 50 mm 1 pcs, M 6 X 80 mm 1 pcs and M 6 nut. One or two M 6 washer.

Drill M3 and M4 threads use threaded pin.

In the picture has been used "runko iso" file.
you can use an elastic band to lift the drill up.


Nozzle 0.4 mm

Layer 0.2 or 0.25