If I'm cutting 3mm, 6mm, 9mm perspex or engraving onto the same thickness wood the laser is fine. However, one of our students wanted a name engraving on a box he made which is 29mm thick. In 2D Design, I specify the material thickness (for a simple engraving) but the laser honeycomb bed doesn't compensate for this thickness. It seems to stay at the height as if it was working on thin material, so then if left to run, the laser cone would bang into the material.
If I was cutting 3mm one job, then changing to 6mm the bed will move down the extra 3mm to do this, so it seems strange that it doesn't for a thicker material.
I've checked for debris under the bed (the table moves up and down fine), and the Z axis has not long been calibrated (and it does cut/engrave fine on thinner material).
I have engraved before on material like this.
Andy
