I thought the same thing. But according to the description, it’s non combustible paper.
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While masking is usually fine for most woods, with acrylics you can get little chip knockouts from the flashback which masking does not prevent.
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Very interesting. Wonder what they use to make it non-combustible?
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pretty good chance your power is too high if that’s happening. speed up or lower power and that should go away.
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Thank you! A great use for scraps.
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Industrial non combustible paper (think hollow core doors, non-solid wood IKEA furniture, wallpaper lining etc) typically uses aluminum hydroxide. Fire retardants for fabrics are usually some kind of salt solution.
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Very interesting. Thank you for the info!
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These look great. I haven’t worked much with acrylic. What are the benefits for having acrylic raised off the crumb tray?
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You can also mask, but this is definitely quicker and less wasteful!
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I mask it and raise it. It keeps the flashback from the tray marring the under side of the acrylic.
I had this problem a lot when working with green-glass acrylic for my clock. The edges would look notched if the laser-power was slightly to high. Even through the masking it would remove some the edge and it wouldn’t look perfect.
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Neat idea, thanks for sharing.
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Ugh. This is what happens when I rush a thing out the door. My measurements are switched and yes, you’re right, that part of the design would lift the acrylic up off the crumb tray by 8mm.
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