[contingencies]

Re. 1/2. If you send me a Form 2 for a few months or a discount code I'll be happy to give you detailed feedback. Otherwise, at USD$5000+postage it will take a good while outsourcing production for this to make sense. (Typical third party fabrication cost for us is around USD$30-100 per part or part-set delivered via courier.)

Re. 3. We typically use 3D printing to prototype for injection molding. We don't use it as a production process.

Re. 4/5. Your comment makes the false assumption that iterating rapidly on a single component is the sole bottleneck for product design iteration, and thus that failing to optimize iteration speed amounts to bad management. While this is occasionally a requirement, in fact we mostly find there is substantial parallelization potential per module, meaning that even within a single assembly mechanical engineers can place an order and then move on to another part or concern. Also, nobody selling printers ever calculates for support removal and finishing time/space/tools/chemicals, noise, smell/indoor air pollution, human presence requirement in order to transfer parts to automated washing/curing units, or additional overhead and loss due to slack materials stock.