Greetings Amigos Resorteros,
I am currently trying to build an ergo PFS and when the drawings look good, it is time to start building, testing and if it is necessary to return to the drawing board.
The following design looked good on paper but had slight inconveniences in terms of comfort, meanwhile it seemed to me that this frame could be rescued even if it moved away from my original project.
Just use 35 or 36 grit sandpaper and epoxy to fill the voids of cheap bamboo cutting board, then pour some lacquer in a polyethylene bag and put the frame in so that lacquer penetrates instead of covering the surface, take it out and let dry outdoors.
your opinion will be very useful as always