Route 1: buy your own printers
The real cost is more than the machine. To price a part honestly you need to count all of it:
- Hardware amortisation: the printer cost spread over its expected working life
- Filament, including waste, supports and the remakes behind every failed print
- Your hours: slicing, clearing plates, quality checks and packing parcels
- Electricity for every hour a machine runs
- Overheads: space, spares, maintenance and software
- Packaging and postage on every parcel
At steady volume on well-used machines, in-house can be the cheapest per unit, and you keep full control of quality and scheduling. At low volume the fixed costs dominate: the printer, the failures and the hours are all still there whether or not this week sold anything. The print farm calculator models exactly these inputs, so you can put your own numbers in.