Problem with spindle motor electronics

[Bojans]

Couple of days ago I purchased MX-180V..
Unfortunately, the motor driver stopped working after couple of seconds. I found the processor went faulty.
I would like to build my own speed controller.
Does anybody have experience with this circuit?
https://www.tehnomagazin.com/Motor/D...-schematic.htm

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[Bojans]

Vendor promised the new controller in couple of days..
In the meantime, I tried the circuit discussed earlier (it is basically dimmer, 20Acapacity).. and it works OK, as expected. Probably not any worse than original controller (apart from overload protection and whatever else non-obvious features are implemented).
So - lathe is operational as of now.