Prusa LACK enclosure embedded thermometer and dimmer

Modified LACK enclosure for Prusa MK3 with an embedded thermometer and LED dimmer.

This remix modifies the top corner pieces so that a thermometer can be put inside the left leg piece and a LED dimmer inside the right leg piece.

Warning: This is a version for 2mm plexiglass. If your plexiglass is different thickness, you have to modify the files.