by TLHarrell » Mon Feb 24, 2014 6:37 pm
I have cut 1" (25mm) foam in my laser with a 1.5" focal length lens with no visible issues. Using a 5" lens it should be possible, but there will still be some angle to the cut. If you focus the beam point at the center of the material, the sides of the cut will be somewhat hourglass shaped, being slightly wider in the center. It should be capable of cutting up to 110mm foam. Since this is for camera cases, the slight beveled cut should not be an issue at all. You do realize though that you cannot control cut depth, so if you want foam left on the bottom, you'll have to stick another piece in there.
Also, foam engraves very nicely. Text and logos can be engraved into it and they show up very nicely.
40w Full Spectrum Engineering 5th Gen Hobby 20"x12" w/ Rotary Engraver
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