~33 x 9 Box Joint fire pit cover

Information

      I have a fire pit that needed a cover during winter.  I wanted to design something with a quick & cheap box joint to learn the Xtool software and have a usable product while testing many of the features.  The kerf of a laser seemed to be perfect for this product assuming I could get it to cut through the 1/2" material which was a challenge.  The material I chose was leftover plywood which has voids, glue and different internal material densities. The board dimensions were also a challenge.  With the four sides and top all on one plane, the material size was greater than just the bed, so I had to use the conveyer.  It also needed 3" on either end to "Map" properly.  The minimum material then had to be Length: Final internal length 33" + 1/2" x 2 box joint + 1" x 2 side height AND the 3" on either end for the conveyer to total; 42" length.  The width was a bit more flexible.  I didn't want to cut too close to the side of the material, so I left an inch on either side. Again, the internal width needed to be 9" + 1/2" box joint x 2 + 1" wall height x 2 to total 12 and an inch on each side to total 15" in width.