Size 1,5A, 2 Phase, 4-Wire Stepping Motor for 3D Printer engraving machine


Size 1,5A, 2 Phase, 4-Wire Stepping Motor for 3D Printer engraving machine, cutting plotter, textile machine, 3D printer, medical devices, stage lighting equipment, robot, CNC machine, music fountain and other industrial automatic equipment.

There are two relevant sizes: the Nema size number and the length. The Nema size number defines the square dimension of the body and the mounting hole positions. The most popular size for 3D printers is Nema 17, which has a body no more than 42.3mm square and fixing holes in a square of side 31mm.

Nema 17 motors come in various lengths, ranging from 20mm long "pancake" motors to 60mm long motors. As a general rule, the longer a motor is, the greater its holding torque at rated current. Longer stepper motors also have greater rotor inertia. All Duets should be able to drive these, though some Nema 17 motors can be rated up to 2A, which is at the limit of the Duet 2 Maestro (though you can always run motors with less current).

Nema 23 motors offer higher torque than Nema 17 motors. The Duet 2 (WiFi and Ethernet) can drive them if you choose them carefully, in particular in respect of rated current, up to a maximum of around 2.8A. Duet 3 should be able to drive larger motors, up to 5.5A. You should use 24V power on Duet 2, and 32V power on Duet 3 for larger motors.

Nema 34 motors are even larger, with more torque, and generally used in CNC applications. Duet 3 can drive these motors too, up to 5.5A. To achieve high speeds with large motors, you may need higher voltages than the 32V maximum for the Duet 3. It is possible to modify the Duet 3 to increase this to 48V, and possibly 60V (which is the limit of the stepper driver), though this will invalidate your warranty

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