We did some molding and extrusion at a startup I worked at. A couple of things from our experience: - Need to be incredibly explicit. Call out tolerances, how

We did some molding and extrusion at a startup I worked at. A couple of things from our experience: - Need to be incredibly explicit. Call out tolerances, how you need it to be created, expectations, everything you can think of. They'll do the work to what you specify, but if you don't specify something, there will be issues there. - They are as precise as you ask them to be. - Be careful of prototypes to full orders. We got a lot of parts where the prototypes were perfect, but the when they mass produced them, the method was different, causing an issue with the part. - You need to be the knowledgeable party of your design. From our interactions, they are implementing your design, not necessarily helping you make it work. If you don't have a lot of plastics knowledge, there will be a lot of issues and retooling to get it to work, so I would go with a manufacturer that is more collaborative.