Unfortunately, there’s one fewer person working in composites, with the very recent passing of Basslab founder/physicist Heiko Hoepfinger.
Interesting as the GViol is, do you build what can be considered traditional basses? I know Basslab’s designs were anything but traditional, it has pickups, frets, and 4-6 strings (mine has 6), so it falls in that traditional style. Your story intrigues me, as a fan of composite instruments. Knowing a bit about the Trabant, I knew other composites were around, but I am not a materials scientist, so anytime I read about some new material or technique, it immediately piques my interest.
I’m not in the immediate market for a fretless 6-string bass, or a 32” scale fretted 4-string - I have debts to pay, and I need to try to buy a house - but, since Basslab’s continued existence may be in doubt, and Aristides is dragging their feet on a headless bass, I would like more options.
My backlog has been ridiculous for over 20+ years. At my peak in the 2010s, I was managing three different model fleets: solid body electric, ElectroCoustic (Electric with acoustic behavior) and full blown bent side acoustics. Building normal traditional guitars and bases never fit into my priority bandwidth as the GuitarViol by itself kept me beyond busy. But he got to the point where massive woodworking was beginning to hurt (allergies) and maintaining relative humidity became as practical as sweeping the ocean off the beach with a broom (The job is never done - exhausting). Wood can do terrible things when it comes to precision and fragility. That is what interested me in creating a uni-model with aspects of all the other ones that were successful. So about the time I joined BRUCE Johnson and others at the secret underground laboratory in the Fillmore I was spending half my time building instruments to ship with a small crew of independent professionals and spending the other hours evenings and weekends going down the rabbit hole of composite work and making tooling. The idea back then (2015-2019) was to create a few technician jobs that would otherwise exist in places like SpaceX and Tesla. It seemed like a great idea until California went for Bolshevik and the pandemic hollowing out the majority of my film and TV customer base.
Anyway the irony is that I am operating from a tiny home space after shuttering my post Fillmore (Secret underground laboratory) space. All of this happened when I was in the middle of deep engineering and R&D mid pandemic working solo (thanks California) juggling chainsaws and herding cats and finding out the hard way that carbon fiber was not the material I wanted to stay with. Eventually I started experimenting with flax combinations and eventually looked too industrial hemp as the substrate of choice. I think it is incredible material that was unfairly stigmatized because if it’s THC cousin, reefer madness (basically William Randolph Hearst was in the paper pulp forestry business and did not like competition). But prior to that in World War, rope and canvas were as strong as you can possibly get. I like its response as it acts like a “super-wood”, is less nasty to work with compared to carbon fiber in fiberglass, and is naturally an anti-inflammatory which means my allergies don’t go off as much. (BRUCE Johnson used to count my sneezes across the hall and Fillmore - ha ha).
But working with composites does he have some crazy learning curves. When innovating with a less common substrate like industrial hemp, there is a lot of R&D experimentation etc.. Through all the chaos of the pandemic era Valencia CA shop, I was just getting a hint of the progress and I’m still experimenting with various powders, hurds, and cloths.
The bottom line is those familiar with basic composite work in composite molds can’t easily adapt. Same molds, similar process, just alternative materials. Since industrial hemp has been getting momentum again since the 2018 Farm bill, there’s a lot of catching up and development to do with regard to application specific cloths like the
General carbon fiber and fiberglass industry has done so well. But I enjoy the pioneering part of it!
A bit of personal irony: my great uncle was a guy name Prescott Wilson who was an important sailmaker pre-World War II Rhode Island and New York. He designed the rig for the star class and also made the winning sales for the J class Americas cup. He was the first to use synthetic rayon Dupont for spinnakers and the couple from canvas and hemp. So we’re here I am coming back full circle making heretical stringed instruments out of industrial hemp….
Anyway, I have no doubt that these approaches would make some seriously great basses and guitars as well. It’s all in the engineering as Bruce Johnson would say.