Biggest 3D printing factory in USA
Shapaways factory is trying different business approaches to get new customers. Ponoko tech support are trying to fulfill simple requests. And etc.
And Biggest in The World Minnesota's located 3D factory even did not bother to put advertisements - they just has contracts, and their millions dollars lines of 3D printers are busy with "manufacturing".
Больше, про бизнес и толкаемый им технический прогресс, пусть мне не заливают.