Has anyone got any tips for engraving plywood 4mm?
More info would be helpful. What laser you are using and have you tried to engrave?
Anything you can contribute to what you are or wish to accomplish.
Engraving is the same as on 1,2 or 3mm, you just adjust your focus according to the thickness. If it is “craft” plywood there is no chance of getting it cut reasonably nicely with a diode laser, maybe poplar veneer will go, but 4mm … try on some waste wood first.
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