poor's people cheap switch adapted

So,switch are more expansive than abs and -50 pack- chinese microswitch. Just adapted the left hole to fit this other thing made by the same author (https://www.thingiverse.com/thing:1400499).
I'm just uploading the 12mm top hole and the single body of the box,you can find other part to finish and assemble your box mod following the link to the original project