Old laser printer steppers

[hma]

Hi Guys,

I am following these forums for a few days now and I am wondering if I could use the steppers from old laser printers for an CNC router. I have four "heavy" ones, Sanyo Step-Syn 2 of 4.2V 1.5 A and 2 of 4.1 V 1.1A, each a step of 1.8°. (and a lot of smaller ones ). Could I use them for a table as Joe's ?

Thanks in advance,

Hugo

[Rance]

Hugo,

The printer steppers that folks usually use are from the HP II & III's. Here's some various info. I've been collecting in preparation...

Rance


Steppers scavanged from a LaserJet II or III (http://www.cnczone.com/forums/showpo...0&postcount=86)
http://www.cnczone.com/forums/showpo...0&postcount=29
http://www.cnczone.com/forums/showpo...23&postcount=6
http://www.cnczone.com/forums/showpo...2&postcount=18

LABELED: Astrosyn
TYPE: 23LM-C701-01
P/N: RH7-1048 04
5.2 V/Phase
1.4 A/Phase
1.8 Degree/Step
100 oz/in
(Drive them with 24v @ 7.5A)

[From HP LaserJet I, II, and III:
Lrg- Minibea Astrosyn 23LM-C701-01
Med- Minibea Astrosyn 23LM-S047-G1
Sml- 23LQ-C202-G2V
]

Wiring Diagram:
Coil A
-Green
-White/Green
-White (CT)
Coil B
-White/Red
-Red
-Black (CT)

Subject: Laserjet III to linisteppers ..... how???? (See Laserjet III to linisteppers ..... how????)

From HP Laserjet steppers
Now you can get the HobbyCNC Board which these motors work real well with, the instruction also has the right color wire coordination for them.

I would sugest you use a min. of 24v, but I wired three computer power suplies together in series with floating ground and got 33.6volts with 8 amps (amps are limited to the lowest amperage of power suplies, so if you have two 10a power suplies and one 8 amp then your end result will be 8 amps which is pleanty for these motors rated at 1.4a each. If you need help just let me know, I wish i was into this when i was your age.

Joe
- - -
From http://www.cnczone.com/forums/showpo...9&postcount=13
Laserjet IIp and Laserjet IIIp aren't worth the effort. The motors in them are a Canon PM60-H418Z21B motor which I can't find any information on. Its a uni-polar stepper (6 wires) but the body is a non-standard size.

[hma]

Thanks Rance,

The steppers I have are nearly the same, so I could use them. I have also received now the boards and processors to make UHU servocontrollers, what power the servo's must have to replace these steppers? Maybe I should ask this on an other forum

Hugo

[HayTay]

Hugo & Rance,

Here's a link to the HP LaserJet II/III Stepper Motor Specs PDF that I put together and posted a while ago. It may make a nice addition to your "collection" if you don't already have it. Let me know if I need to correct or add to any of the information provided.

Thanks,

HayTay