Nice work, with lots of little pieces! I love the vibrant colors of acrylic with the warmth of wood.
I use Inkscape, and @mpipes Shared his method a few years back which has worked well for me…
Easiest way to do it is to not think about it.
Draw your design.
Set the design so it has no fill color, and set the stroke width to match the full width of the laser kerf - I tend to use .007" or .008".
Expand (Or Convert Stroke to Path) then break the design apart. This gives you “kerf-adjusted” paths for the laser. The “inside” or “smaller” paths would be used to cut the hole out of the main material. The “outside” or “larger” paths are used to cut the “plug” or “inlay” from the other piece of material.
Theoretically this makes a 0.000" fit tolerance between the two pieces but natural materials like wood or other compressible items might need a little overlap to press fit tightly while two pieces of acrylic ain’t gonna go together this tightly (maybe allow an extra 0.001")
Note - if you invert one of the two, the slope of the laser cut fits better.
If I remember I used a stroke of .007 for this, no glue, the pieces were tight and had to be tapped into place.
