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A very suitable 3D printer use nema17 stepper motor for the 3D Printers reprap, The nema17 stepper motor in a competitive price - details see: https://www.machineto.com/reprap-nema-17-stepper-motor-for-3d-printer-10238847

This is an awesomeNEMA17 stepper motor for Reprap 3D Printers.

It is the primary nema 17 stepper motor used on the Cupcake CNC and Thing-O-Matic. It has suitable torque output and a small size.

The following are the specs:

Reprap Prusa Mendel

200 steps per revolution (1.8 deg/step)

2 Phase

Rated Voltage 4.83V DC

Rated Current 0.84A

Phase Resistance: 5.75 Ohm ± 10% (20º C)

Phase inductance: 9.3mH ± 20% (1kHz 1 V rms)

Holding torque: 0.28N.m Min.

Shaft diameter: 5mm / 0.188" (3/16")

Shaft length: 20mm Motor depth: 34mm

ThisNEMA 17 Stepper Motoris good for use in both CupCake CNC's and Thing-O-Matic 3D Printers. It's also great for all kinds of mechanical projects, robotics, and projects. It's fully compatible with the Generation 3, and Generation 4 MakerBot Stepper Driver electronics.

1. Pre-assembled connector that is compatible with both the Stepper Driver v2.x and v22.x boards that we sell. Plug and play!
2. Extra long 460mm / 18" lead wires. No splicing, no soldering.
3. NEMA-17 is a standard motor mounting geometry. The outside of the motor housing is 1.7"x1.7". The specification datasheet is located.