Hello everyone!
In the spring, I bought a CNC USB controller Mk3/4 (4 axis). Everything worked perfectly for six months! Then the problems started.
Very rarely - once a week, then once a day during the program, the machine stopped moving and turned off the spindle. The cooling was not turned off. There are no error messages.
It was possible to start execution first or from a specific code location and there were no more stops. The situation could be repeated 5 times an hour, and then work for a week without such stops.
Over the past three months, the situation has gradually worsened.

Today, the machine stopped each time at about the same place at the beginning of the program. Manual control works, MDI commands are executed. There are no errors in the logs.
Any ideas? Thanks!