being a hobbyist for a long time now, I finally got the courage to go on and try to make one of my experiments a real product. Now, by no means do I plan to run a large scale company and compete with tech giants out there. Instead, I'd want to make a small scale production and sell my goodies at Tindie.
I got my device in a production ready state, i.e. I have gerber, BOM, assembly drawing, pick'n'place files ready. I even have a 3D model. Right now, I am negotiating with some more or less popular PCB manufacture and assembly services (PCB Cart, PCB Way, Seed Studio, Smart Prototyping). Is it usual practice to make an order of, let's say, 100 pieces and then put the product on Tindie? Or should I rather advertise my product in the prototype phase first and order only after I get some orders? How do you usually do this?