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steppers (x4)

Jan Cumps

Can you have enough stepper motors? Maybe.

I did an investment. I had one driver IC and a good motor. I added 4 somewhat heavier motors, and 4 Allegro A4988 drivers.

image

(for my own documentation)

  • Motor Type: Bipolar Stepper
  • Step Angle: 1.8 deg.
  • Holding Torque: 40N.cm (56oz.in)
  • Rated Current/phase: 1.7A
  • Phase Resistance: 1.5Ohm±10%
  • Insulation Resistance: 100MΩ¸ Min, 500VDC
  • Insulation Strength: 500VAC for one minute
  • Physical Specification:
  • Frame Size: 42 x 42mm (1.7 inch x 1.7 inch)
  • Body Length: 40mm
  • Shaft Diameter: 5mm
  • Number of Wire Leads: 4
  • Wire Length: 400mm
  • Weight: 280g
  • Temperature rise: 80deg Max(rated current, 2 phase on)


Rood B+
Groen A-
Zwart A+
Blauw B- 

image

One more strange stepper is on its way from China:
image, 

Goal is to control them with a single Pico.

  • in reply to anniel747

    description says it's for (or from) an engraver

  • in reply to Jan Cumps

     That's what they want you to believe but you can have those for free in any crappy dive. 

  • in reply to Jan Cumps

     

  • I look forward to seeing what you make with them.

    I have a bunch of stepper motors I salvaged from old printers and CD/DVD drives.

    Maybe I will get ambitious and make a project.

  • This reminded me of a rather heavy box of motors I have. There's a healthy mix of servos, dc motors with reduction gears, and steppers (most of them salvaged from old equipment). I've been telling myself that I'll find a use for them for like 10 years, and I intend to keep telling myself that for several years more :D

  • in reply to Jan Cumps

     You can also get shorter ones for Z axis in 3.5 floppy drives if needed.

    image

  • I look forward to see what you create with the steppers. I got a couple, they are too heavy for my small robots and projects. 

    I really wanted to try out the linear gear with stepper to see if the linear speed can be useful without jamming. 

  • Nice collection of motors. Great to see how many you can drive from your Pico.

    I have a collection of tiny steppers that I intend to use for a tiny robot (~ 1 cubic inch).

  • the little motor arrived too. It's tiny

    image