Reliability is built on consistent motion. Our 37mm NEMA 17 Stepper Motor is the industry standard for makers who need dependable torque in a compact frame. In the My Machines ecosystem, this motor is specifically recommended for applications where a balance of strength and agility is required.
While larger motors add unnecessary mass to moving gantries, the 37mm (17HS4401 series) provides ample torque (up to 40N.cm) to drive lead screws or geared extruders with ease. Its high-quality internal windings and precision bearings ensure a smooth step response, reducing mechanical noise and improving print surface finish. Whether you are lifting the bed of your My-CoreXY or powering the X/Y axes of a My-Cloner, this motor is a cornerstone of professional Open Source Fabrication.
Why this 37mm Motor is the Maker’s standard:
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Precise Step Angle: Standard 1.8° resolution, fully compatible with all 32-bit boards like the MKS Robin Nano.
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D-Shape Output Shaft: 5mm diameter shaft with a flat surface to prevent pulley or coupler slippage.
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High Thermal Dissipation: The 37mm aluminum body acts as a natural heatsink for stable performance.
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Universal Compatibility: Standard NEMA 17 mounting holes (31mm spacing) for easy frame integration.
Technical Specifications:
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Height: 37mm (Body).
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Step Angle: 1.8°.
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Holding Torque: 40N.cm (0.4N.m).
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Rated Current: 1.5A – 1.7A.
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Shaft Diameter: 5mm (D-Shape).
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Weight: Approx. 240g.
Consultant’s Pro-Tip: For the My-Cloner Z-axis, this motor is the perfect choice. When pairing it with the TMC2209 Drivers, set your Vref to around 0.8V – 1.0V for a cool and silent operation. Always use Ferrules (Terminais de Cravar) on the wire ends to ensure a solid connection to your controller board and prevent voltage drops during high-torque movements.
📦 Package Includes: 1x 37mm NEMA 17 Stepper Motor and 1x 1-meter XH2.54 Connection Cable.
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