Amazon.com: 310mm Tr8x2 Lead Screw Nema 17 Integrated Linear Actuator Stepper Motor with External Brass Nut 1.5A 59oz-in for RepRap Prusa i3 3D Printers Z Axis CNC : Industrial & Scientific
Original Prusa i3 MK3S+ 3D Printer, Removable Print Sheets, Beginner-Friendly 3D Printer DYI Kit, Fun to Assemble, Automatic Calibration, 1kg Filament Included, Print Size 9.84×8.3×8.3 in.: Amazon.com: Industrial & Scientific
RepRap Guru prusa i3 V2 B 3D Printer: Amazon.com: Industrial & Scientific
Iverntech NEMA 17 Stepper Motor with Integrated 100mm T8 Lead Screw for RepRap Prusa i3 3D Printers Z Axis or CNC Machine… - - Amazon.com