Update Laser Engraver for Rotary Axis

With the advent of the axis of rotation, minor cosmetic modifications of the laser engraver itself were required. First of all, we needed higher legs. They could have been made from the previous model, but I didn't have such long bolts, so I used a threaded rod and lock nuts to fix it. In the leg itself, I also cut an M5 thread and simply screwed a hairpin with an inserted nut into the leg, it got a tight fix.

Also added a model of the controller case cover with an additional hole for the connector. But I didn't print a new one, I made a hole with a milling, ... it came out neatly.