Toy truck – a beginner’s CNC project

While Paul was focussing on desigining and delivering the Super Gerbil CNC kickstarter project, I was helping with the testing. Rather than using simple test shapes, I tackled something a little more complex to help avoid boredom !  The result was a toy truck as a beginner’s CNC project. Actually, being made from acrylic, it’s […]

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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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