Voron Design is a nonprofit organization that develops specifications for free and open hardware. They have developed specifications for several 3D printers and have been described as a revival of the
Voron 2.4 is a modern 3D printer with CoreXY, stepper motors in open-loop control and with the open-source firmware Klipper that introduced input shaping
Toolhead on a Voron 2.4, here with a hotend and direct-drive extruder
The Prusa i3 is a family of fused filament fabrication 3D printers, manufactured by Czech company Prusa Research under the trademarked name Original Prusa i3. Part of the RepRap project, Prusa i3 prin
RepRap Mendel
Prusa Mendel (iteration 2)
Mendel90 gantry-frame printer, 2011