even the most rudimentary CAD suite would choke the decidedly low power Raspi. Instead, [Sacha] is using the Raspberry to grab 2D and 3D files, turn that into g-code for a machine, and send it off ...

There are some exceptions, but most 3D printers run on either an 8-bit Arduino or some Arduino variant ... It isn’t uncommon to see a Raspberry Pi connected to a printer, too, but — again, ...