"Until very recently, 3D printing companies sold only proprietary hardware and materials (including plastic filament) to print with them. "
This just isn't true. For years 3D printers have been available with or without open hardware, software and consumables. See printer reviews in Make, for say the last three years for examples.
"Until very recently, 3D printing companies sold only proprietary hardware and materials (including plastic filament) to print with them. "
This just isn't true. For years 3D printers have been available with or without open hardware, software and consumables. See printer reviews in Make, for say the last three years for examples.