OK! spent some more time on the gutz of this assembly: the undercarriage for the sewing machine. This is just a simple frame of hard wood that the sewing machine will rest upon. I have no present intention to affix the frame to the sewing machine; its main purpose will be to be the interior support of a pair of lateral rods which hold the lower frame into the external "shell" cover. I'm sure this doesn't make any sense in words, but imagine a horizontal grove on the outside of the below frame, and an interior grove on the shell at the same place, and a long rod shoved down the middle to hold 'em together.
Anyway, the frame wood I saved from the happy destruction of an old lounge chair that Sarah had mercifully allowed me to architecturally reconfigure with my handy 10 pound hammer. we wanted it out of the house, and I wanted the material since it was made mostly of oak and maple. the maple seems okay, but punky in spots. The oak has a few worm holes but is harder than hell mostly. Had to rehone my POS 1/2" chisel a few times before I could punch it through these dovetail chops:
Testing fitment of the joints
How she rests right now