steppers - nortd/lasersaur GitHub Wiki

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Note: We have been switching stepper motors quite a bit over the version number. Make sure to double-check the part numbers accordingly.

Oriental Motors Steppers

x-drive

  • PKP244D15A-L, search link (Americas)
  • PKP244D15A2, search link (Europe)
  • Nema 17 (mounts with M3 screws, square with 31mm, shaft dia: 5mm dia)
  • holding torque 0.48 N-m
  • weight 300g
  • shaft length 20.0mm
  • body length 39mm
  • current (bipolar, series) 1.5A
  • Wiring
    • A -> red
    • A' -> blue
    • B -> black
    • B' -> green
    • all others disconnected

y-drive

  • PKP266D28AA-L, search link (Americas)
  • PKP266D28A2, search link (Europe)
  • Nema 23 (mounts with M5 screws, square with 47.2mm, shaft dia: 6.35mm dia)
  • holding torque 1.4 N-m
  • weight 700g
  • shaft length 90.0mm (tip front to tip rear shaft)
  • current (bipolar, series) 2.8A
  • Wiring
    • A -> red
    • A' -> blue
    • B -> black
    • B' -> green
    • all others disconnected

Oriental Motors Steppers (OLD)

x-drive

  • PKE244A-L
  • Nema 17 (mounts with M3 screws, square with 31mm, shaft dia: 5mm dia)
  • holding torque 0.39 N-m
  • weight 300g
  • shaft length 20.0mm
  • body length 39mm
  • current (bipolar, series) 1.2A
  • Wiring
    • A -> red
    • A' -> blue
    • B -> black
    • B' -> green
    • all others disconnected

y-drive

  • PK266-03A
  • Nema 23 (mounts with M5 screws, square with 47.2mm, shaft dia: 6.35mm dia)
  • holding torque 1.17 N-m
  • weight 700g
  • shaft length 90.0mm (tip front to tip rear shaft)
  • current (bipolar, series) 2.1A
  • Wiring
    • A -> red
    • A' -> blue
    • B -> black
    • B' -> green
    • all others disconnected

Nanotec Steppers (ALTERNATIVE SOURCE)

x-drive

  • ST4118M1206-A, data sheet
  • Nema 17 (mounts with M3 screws, square with 31mm, shaft dia: 5mm dia)
  • holding torque 0.4 N-m (56 oz-in)
  • weight 240g (0.5 lbs)
  • shaft length 24mm
  • current (bipolar series) 0.85A
  • Vmax = 32 * sqrt(11.6) = 109V
  • Amax = 0.67 * 0.85 = 0.57A (required power supply)
  • Wiring
    • A -> orange
    • A' -> brown
    • B -> red
    • B' -> yellow
    • all others disconnected

y-drive

  • ST5918M3008-B, data sheet
  • Nema 23 (mounts with M5 screws, square with 47.2mm, shaft dia: 6.35mm dia)
  • holding torque 1.1 N-m (156 oz-in)
  • weight 650g (01.43 lbs)
  • shaft length 90.1mm (tip front to tip rear shaft)
  • current (bipolar, series) 2.1A
  • Vmax = 32 * sqrt(4.4) = 67V
  • Amax = 0.67 * 2.1 = 1.4A (required power supply)
  • Wiring
    • A -> green
    • A' -> black
    • B -> red
    • B' -> blue
    • red-white -> blue-white
    • black-white -> green-white

Driveboard Stepper Connections

  • A ... wgr,wor on patch cable, pin 1,3 on modular jack
  • A' ... gr,or on patch cable, pin 2,6 on modular jack
  • B ... bl,br on patch cable, pin 4,8 on modular jack
  • B' ... wbl,wbr on patch cable, pin 7,5 on modular jack

Other Info

  • 1 N-m is about 141.6 oz-in
  • 1 N-m is about 10 kg-cm
  • Stepper Sizing Tool
  • on average dynamic torque is approximately 70% of holding torque
  • Nema 17, ~42mm square, 30mm square mounts, M3
  • Nema 23, ~56.4mm square, 47.2mm square mounts, M5
  • wiring of lin steppers