Engraving to cut through

[Grzechu]

Hi guys,

recently I had to cut through 15mm acrylic and got some charring on the bottom of the sheet.
I know it's been caused by a residue from other materials that I cut previously and slow speed of the cut, the residue caught fire etc.
But that made me think if it wouldn't be better to try to cut the material using less power (similar to engraving) but run the process couple of times?
If you have any suggestions what is the best way to cut 15mm material and don't get the charring effect please share it.

Thanks

Grzechu

[Ronaldsar]

Could you take a picture?I don't quite know charring on the buttom.But using less power would not be a good idea,beacuse this will cause cutting no surface.You can try blowing by fan or raise the acrylic.

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