If you operate 50 printers you're presumably doing some sort of business. Nobody operates 50 printers for a laugh.
It sounds interesting. Are you printing arbitrary parts that other people send you, printing parts of your own design for your own products, or something else?
Yes to all of those. It's a micro manufacturing shop (we also have laser cutters, a CNC mill, woodworking equipment, casting materials, etc.). We mostly sell products that we design and build on Etsy & Amazon, but also do small batch runs for people who need 50+ pieces of something and the economics of injection molding don't make sense. It actually started as a makerspace, but the economics of that model were not sustainable, so we scaled into small-run product manufacturing.
It sounds interesting. Are you printing arbitrary parts that other people send you, printing parts of your own design for your own products, or something else?