Nema 17 Stepper Motor Bipolar 0.9 deg 11Ncm (15.6oz.in) 1.2A 3.6V 42x42x21mm 4 Wires
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This bipolar Nema 17 stepper motor with step angle 0.9deg and size 42x42x21mm. It has 4 wires, each phase draws current 1.2.0A, with holding torque 11Ncm (15.6oz.in).
Electrical Specification
- Manufacturer Part Number: 17HM08-1204S
- Motor Type: Bipolar Stepper
- Step Angle: 0.9 deg
- Holding Torque: 11Ncm(15.6oz.in)
- Rated Current/phase: 1.2A
- Voltage: 3.6V
- Phase Resistance: 3.0ohms
- Inductance : 2.2mH ± 20%(1KHz)
Physical Specification
- Frame Size: 42 x 42mm
- Body Length: 21mm
- Shaft Diameter: Φ5mm
- Shaft Length: 17mm
- Number of Leads: 4
- Lead Length: 300mm
- Weight : 150g
Connection
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A+
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A-
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B+
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B-
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Black
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Green
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Red
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Blue
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Resources
- Full Datasheet: 17HM08-1204S.pdf
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| Electrical Specification | |
|---|---|
| Bipolar/Unipolar | Bipolar |
| Holding Torque (Ncm) | 11 |
| Holding Torque (oz.in) | 15.6 |
| Inductance(mH) | 3 |
| Phase Resistance(ohm) | 3 |
| Rated Current (A) | 1.2 |
| Step Angle(°) | 0.9 |
| Physical Specification | |
| Body Length(mm) | 21 |
| Frame Size(mm) | 42x42 |
| Single Shaft/Dual Shaft | Single Shaft |
| Shaft Type | O |
| Shaft Diameter(mm) | 5 |
| Shaft Length(mm) | 17 |
| No. of Lead | 4 |
| Lead Length(mm) | 300 |
| Weight(g) | 150 |
- Connectors: Molex, Harwin, Tyco/AMP, JST etc.
- Lead wires & cables: Special lengths, Protective hose
- Shaft: Round, D-Cut, Cross drilled, Key-Way, Thread or Hollow
- Winding: Resistance, Inductance, Rated Current, etc.
R. Johnson – 07 Feb 2017
Great replacement for stock extruder stepper in most prusa style printers. Reduces x-axis weight while keeping direct drive near hotend.
J here – 17 Jun 2016
Works great as an extruder driver for my 3d printer. The size is perfect and, with proper gearing, the torque is adequate. I attached this to an E3D Titan Extruder on my modified Fusematic printer from MakersToolWorks. The shaft is a little short in this application as the filament tensioner hangs off the end by about 2mm but it is working just fine so far. The lighter weight of this allowed me to convert my printer from a bowden drive to a direct drive and I'm achieving much better prints. I lost a little print volume due to the modification for my specific printer but it is still great.
