This has been on my things to do list all week. I wanted to demo the free laser design for a parametric box that was very kindly supplied by @mpipes here: Parametric Box with Finger Joints - Fusion 360 file
I had no trouble at all creating a box in my chosen dimensions including kerf. The model worked great! My only problem was getting the dxf into my old version of Illustrator (5.0.2). I just can’t import dxf files. So I went through an online converter, and that changed the sizes (to much smaller). I scaled it up, but a tiny bit too much which made the joints a tad loose. If not for my scaling issues it probable would have been a tight fit. Anyway, here’s the box, in Proofgrade maple 1/8" plywood. So, @mpipes, want me to send it to you?