^^^ locally? where? afaik, mga aluminum guitars sa states are CNC machined eh.
It's part of my engineering major. Obviously, my answer would be my university. However, they don't offer it for commercial purposes. CNC machines are technically the better way to do it since it produces a product with small tolerance. You could even make a guitar out of it in a couple of days only using fiberglass, alumium or any material you want as long as you know the process. Yun nga lang, mahal ang production. Isa pa, the design would mostly come from you including the soft copy so the CNC machines would be able to program the fabrication process.
There is however a place in Bulacan where CNC machining is covered. I forgot what it's called but it's where batteries are manufactured. I've been there just last summer. Cool and awesome place.
