Plastics are very easy if you have in house tooling capability. In 2002 I was working in a plastic moulding part of the factory that produces commutators. We we

Plastics are very easy if you have in house tooling capability. In 2002 I was working in a plastic moulding part of the factory that produces commutators. We went from 0 to fully developed product in 24 hours and were ready to mass produce. Hundred parts on three machines per minute. And this was 2002. I imagine today it's even easier. So, indeed this is not a hard problem because it was solved decades ago. Dyson in UK is ready to produce their own version of ventilators already.