So i just purchased this stepper motor and I'm not really used to working with ones like this.
http://www.ekt2.com/products/productdetails?ProductId=2fcd5e66-d26a-427e-aa6f-967f10e61358
Specs: 24v, 1.5A, Torque 0.55 N.m.
Im using the easy driver by spark fun with it.
Long story short... I wasn't able to make it run!
I wonder if its from the voltage I'm providing.. I couldn't find a 24v power supply so i just connected 3: 9v batteries in series which amounts to 27v. Could this be the issue? If so, what can i do to provide it with 24v? I live in Lebanon and its not easy to find all supplies, so i would appreciate a simple idea.
And if there is something else I'm missing out here please help me out.
Thank you!
You have both the wrong driver and wrong power supply for that motor.
The rectangular 9V batteries are totally unsuitable for powering motors and won't work at all with that one.
For that motor you will need a 24-45 V power supply capable of providing 2-3 amperes of current, steady state.
The Easydriver is not capable of providing the full winding current. It can provide 700 mA per winding maximum, and you MUST set the current limit as directed, or the driver will simply overheat and shut down.
CAUTION
I have looked at the PDF datasheet and I think there is a BIG mistake. It says the current limit is 1.4 amps and the coil resistance is 1.6 ohms. That suggests the voltage is 2.4v and NOT 24v.
24v seemed like an unlikely value - which is what made me check it.
You could control that motor with a BigEasydriver or a Pololu A4988 or DRV8825.
Have a look at Stepper Motor Basics and this Simple Stepper Program which is useful for testing.
...R
Robin2:
CAUTION
I have looked at the PDF datasheet and I think there is a BIG mistake. It says the current limit is 1.4 amps and the coil resistance is 1.6 ohms. That suggests the voltage is 2.4v and NOT 24v.24v seemed like an unlikely value - which is what made me check it.
You could control that motor with a BigEasydriver or a Pololu A4988 or DRV8825.
Have a look at Stepper Motor Basics and this Simple Stepper Program which is useful for testing.
...R
The 24V is the insulation rating, or a suggested power supply voltage, not the winding voltage.
Here I suspect the motor would handle 48V or higher without any problem, most magnet wire (ECW) is
good for that.
Bipolar stepper motors are almost always current driven, the only spec you need to know is the
maximum current really.
MarkT:
The 24V is the insulation rating, or a suggested power supply voltage,
I think you are being too charitable - I reckon it was a typo.
...R
There are steppers designed to run on 24VDC, without current limiting.
I have a few in my salvage box, and here is one for sale: Stepper Motor, NEMA 23, 24V
jremington:
There are steppers designed to run on 24VDC, without current limiting.
But not the one the OP referred to 
...R