Hoping that someone has some advice for me on this!
I am trying to cut some 1/4" semi transparent red cast acrylic and I keep running into issues with it. My current issue is that the back side of my cut is melted/distorted/scarred around my laser cut lines. Does anyone have any ideas what causes this to happen? Not sure if it's heat, vapor, paper, gremlins or what. I tried cutting without the back paper, but I get a lot of overheat and distortion of the surface without the paper.
Currently I am cutting my shape on top of an already cut area to keep it off the honeycomb and to allow decent vacuum and room for the beam to pass through. I am also using nitrogen for my air assist, started low and have gone up to 15psi roughly. I am using a lot of power ~500 watts at 1.55"/sec, much less power and I lose my edge quality.
Any advice on how to avoid this back melt would be greatly appreciated.
Thank you!
I am trying to cut some 1/4" semi transparent red cast acrylic and I keep running into issues with it. My current issue is that the back side of my cut is melted/distorted/scarred around my laser cut lines. Does anyone have any ideas what causes this to happen? Not sure if it's heat, vapor, paper, gremlins or what. I tried cutting without the back paper, but I get a lot of overheat and distortion of the surface without the paper.
Currently I am cutting my shape on top of an already cut area to keep it off the honeycomb and to allow decent vacuum and room for the beam to pass through. I am also using nitrogen for my air assist, started low and have gone up to 15psi roughly. I am using a lot of power ~500 watts at 1.55"/sec, much less power and I lose my edge quality.
Any advice on how to avoid this back melt would be greatly appreciated.
Thank you!
Cutting 1/4" Acrylic
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