Why does adjusting the power of CO2 laser marker in Ezcad have no effect?

in FAQs about Laser Marking, , , , ,

CO2 laser marking machine, adjusting the power in Ezcad seems to have no effect, is it because the laser mark control board is broken?

First check whether the signal connected to the laser mark control board is correct. Whether the CO2 laser is using PWMTTL signal.

Check if there is any problem with the signal line.

Then the power remains unchanged, and check to see if it is a focal length problem.

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