FYI there's not a lot of "cutting" of glass in a fiberglass-wood composite bow. It's mostly sanding, for which you can use a handheld or table-mounted belt sander, sanding blocks and folded bits of sandpaper.
Of course you can make some beautiful all-wood bows whether from a board, a stave, or a series of wood strips like a Bamboo or Ipe backed bow.
My favorite all-wood design is the Mollegabet, a 10,000 (yes ten thousand) year old design from a grave-site in Denmark. The Mollegabet, with its elegant shoulders and slim outer limbs can be made in pieces, with the handle and narrow-but-deep "lever" tips glued up onto a plank core. I've made laminated Molles as short as 48" with draw weights in the 40# range.
I suggest you spend some time here reading up on bamboo-backed bows, with Osage or Ipe or Hickory or another wood for the main core of the bow.