I’m new to laser cutting, and am trying to design a box with finger joints. I think I understand how to adjust the width of the tabs for kerf (essentially shrinking the tab width by the total kerf, so that half is adjusted for on each side of the tab on both pieces), but I seem to be having trouble with the tab depth. My understanding is that the tab depth should just be the same as the thickness of the material, with no need to adjust for kerf, because the kerf will essentially shave off the same amount from the top and bottom of the tabs. But what I’m finding is that the tabs don’t seem to be deep enough.
I measured the material (Proofgrade medium maple plywood) with digital calipers and it seems to be exactly 0.125 in thick, and in my AI/SVG files the tab depth appears to be the same, but they seem to actually come out around 0.1 in in depth. (I can’t measure that very precisely.)
Any thoughts? My SVG file is here: https://www.dropbox.com/s/rta5qwxwzif9rw4/tab-depth-issue.svg?dl=0