[bojan]

After wiring and a bit of adjustment of limit switches height, it works OK.
It takes ~2 sec to open/close the mask.
Power adapter is 3.3V.
At the moment. I am using 2x3 toggle switch to activate the mask (it provides alternate voltage polarity). Later, it will be done via USB relay board, from desktop computer (already used to control the mount)

Now I need to print the mask segments.