How does this work? How can a market have half its supply be fully booked and the other half not have enough work?
Also I know a 3d printer that can print molds for injection molding, and I know a guy with a set of printers who'd be happy to take orders.
When starting a hardware product, it's so easy to buy small quantities at commercial prices, no questions asked.
In the US, it seems all sales is relationship-based. I need to fill out forms on bad websites, wait for emails from sales reps, who sniff out immediately that I only want a small order. The overhead for processing an order isn't deemed worth the time, and any US-based small-time project ends there.