Do I really need 5 3D printers? I have 4 identical AnyCubic 3D printers. All working fine and will include the original box and 1 roll of filament (filament alone is worth $15-$20). They have SD cards with some files ready to print. Software is free on the AnyCubic site, or use any of the other free slicers you prefer. I have priced at $75 each. If you want all 4 machines (plus 4 rolls of filament), I can accept $200 for all. I will show you the basics of selecting and printing a file, but beyond that I provide no tech support or warranties. This is a good chance to build your production capacity or get started in 3D printing without spending too much. Text is best to contact me.