Stepper motor

[toneV8]

I have this stepper motors
I find them from old printers some stepper motors:

It is manufactured by Tokyo Electric Co., Ltd. - I have 9 stepper
Model: Sph-54C-8
Name : TEC CLA45-50101
Specifications:
voltage - 8V DC
resistance - 10 ohms/phase
step angle - 1.8 deg/step
6 wires

It is manufactured by Kyushu Matsu****a electric Co. Ltd -I have1 stepper
C??45-01102
Specifications:
voltage 3V
resistance 3,5 ohms/phase
step angle 1.8 deg/step
6 wires



It is manufactured by Tokyo Electric Co., Ltd - I have 5 stepper
Model: SP-55a-16
Specifications:
voltage 16V
resistance 65 ohms/phase
step angle 7,5 deg/step
6 wires


It is manufactured by Fuji Electrochemical Co. - I have 5 stepper
Model: SM55-4813A
Specifications:
voltage 16V
resistance 65 ohms/phase
step angle ( do not know )deg/step
6 wires


Now question is:
1. which of them to use for small cnc mill maybe foam milling
2. what kaind 3 axis controller to use with this motors

-how to know does it unipolar or bipolar motor
-how much steps
-how much torque

I already have machine design so I want now start with electronics

Please help me with electronics.
THANKS!

[toneV8]

Can someone recommend something.

[NC Cams]

Tonev8 - your English is very good, your question is very difficult - actually impossible to answer.

Reason: used steppers from printers and other office equipment typically do not have specs published for them nor are they available.

The motors are usually custom made for the specific application and the motor makers will NOT provide the specs for a motor. The specs are considered "know how" and or trade secrets that they don't share/give out.

You will have to figure all this out on your own or get them from where you bought the motors.

Do a stepper motor search on this site and you should be able to find out the methods for "reverse enineering" as much as it is possible - the issue has been discussed time after time.

[toneV8]

I bought the motors on junk yard so only have specifications what writes on motors.

I search for stepper controller on web but I dont know what to look for.
Sorry for my ignorance aboute electronics because I am beginner in this.


Can I use some of controllers on web page http://pminmo.com/

[NC Cams]

PMINMO is a member of this message board. Go to members list and find his name.

THen send him an e-mail with the list of the motors.

I'm sure he will respond to your question.

[OCNC]

Originally Posted by toneV8 I have this stepper motors I find them from old printers some stepper motors: It is manufactured by Tokyo Electric Co., Ltd. - I have 9 stepper Model: Sph-54C-8 Name : TEC CLA45-50101 Specifications: voltage - 8V DC resistance - 10 ohms/phase step angle - 1.8 deg/step 6 wires It is manufactured by Kyushu Matsu****a electric Co. Ltd -I have1 stepper C??45-01102 Specifications: voltage 3V resistance 3,5 ohms/phase step angle 1.8 deg/step 6 wires It is manufactured by Tokyo Electric Co., Ltd - I have 5 stepper Model: SP-55a-16 Specifications: voltage 16V resistance 65 ohms/phase step angle 7,5 deg/step 6 wires It is manufactured by Fuji Electrochemical Co. - I have 5 stepper Model: SM55-4813A Specifications: voltage 16V resistance 65 ohms/phase step angle ( do not know )deg/step 6 wires Now question is: 1. which of them to use for small cnc mill maybe foam milling 2. what kaind 3 axis controller to use with this motors -how to know does it unipolar or bipolar motor -how much steps -how much torque I already have machine design so I want now start with electronics Please help me with electronics. THANKS!

Six wire motors are unipolar. I would use the 54C-8's at .8A per phase for a light duty foam cutting machine. I would drive them with Linisteppers. The sense resistors would need to be adjusted for .8A current. You might want to build a test axis to get the basics worked out before going on to building the machine. This will allow you to get a direct sense of the torque that you will have available at a particular speed. It also helps to have a voltage adjustable power supply. I think I would run those motors somewhere between 12-18v. Trying to do everything by calculation can be taken to an extreme with these small machines. The forces and limitations are pretty obvious when you have a working axis in front of you that you can grab with your hand.

The C45's are low inductance not suited for the Linistepper and you only have one of them.
The 55's are only 1/4 A motors which are probably not powerful enough for your machine.

Hope this helps.

Chris

[toneV8]

Can I use from HobbyCNC Driver Board Kits for my motors or some other Driver Board in this price range.

What is difference between 4 Axis 4AUPC Driver Board Kit and 4 Axis HCNCPRO Driver Board Kit.

[NC Cams]

This may help:

Stepper reverse engineering:
http://www.doc.ic.ac.uk/~ih/doc/stepper/others/


Suggestion: send an e-mail to the supplier of your driver board. They should be able to help you with specific applications/useage information.

[NC Cams]

Check these threads out before you totally vacate the idea of using ATX power supplies:

Daisychaining ATX power supplies:

http://www.cnczone.com/forums/showth...015#post142015

http://forums.bit-tech.net/showthread.php?t=108208

Follow the instructions and DO NOT GET CREATIVE!!!!

[toneV8]

I just now buy 5 stepper motors.

SANYO DENKI
3,25A
1,8° DEG
type 103H7124-1041

Can I use this motors for milling wood, plastic.........

[toneV8]

I have this old transformer from Talema but on transformer does not write technical informations only Nr: 008-0050170 4411-P1S2 so I send e-mail to Talema and ask them about transformer technical informations and they send me technical informations but on germany language also file is scanned and dos not see very well.

Can someone help me with this.

[NC Cams]

Refer to the drawing while following the thread below:

The two orange wires are the primary side. They are designed for 220v input at 47 to 63 hertz, typical European line voltage. The transformer should thus work on 50 or 60 hertz line voltages.

The green wire is one of the outputs for one output phase.

The black wire is one of the outputs for the other output phase.

You should be able to track down the "other end" of the green and black wires with an ohm meter or voltmeter once power is applied to the primary side.

The "2X20 / 5 A" note suggests that the 2 output stages are each rated at 20 volts at 5 amps assuming a 220V input voltage.

Perhaps some of our German speaking/reading members may be of further assistance.