Summary

Made for a cigar box style of guitar. Added tail stock drilling area. Lightened up both parts, The first one is good but didn't need as much strength as designed. Overkill.
Recommend top, bottom and wall count at 4 with 20% gyroid infill. I printed the bridge block upside down. The neck block printed top up. Tree style support for both. Keyholes maybe a little tight. Epoxy to join the two.