Ortur h10 20 watt module stops in middle of burn, slows than stops, new usb cord

I have replaced cord, checked ports, even changed computers. 1"x1" will engrave fine, anything large the machine stops engraving about a fourth of the way through.

That sounds like an overheat problem, likely the laser. Try lowering your power and speed a little to see if it will complete the project.

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