K40 laser: Dither or Gray scale engraving ?

While ‘Dither vs Gray scale’ sounds like a movie, it’s the question K40 laser engravers ask themselves every day. I recently got a question on FaceBook asking me what the difference is between dither and pwm (he meant ‘gray scale’) engraving. In a nutshell: The pulse width modulation (pwm) signal used for gray scale engraving […]

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