I have 3 step motors here from automation direct that I intend to use with an Arduino Uno. They're NEMA 23 and heres the link to the motor's page. Specs are on the top right of the page. (http://www.automationdirect.com/adc/Shopping/Catalog/Motion_Control/Stepper_Systems/Motors_-z-_Cables/STP-MTR-23055) I dont know for sure what power supply to use. I've been looking around alot to try to get an answer but I'm still confused. If someone already covered this topic please link it to me, and sorry for being a nuisance...
Concerning the motors, I couldn't get the recommended power supply and driver (middle of the page, self-same link above). However, the "Motor Torque vs Speed" charts that came with the motor give torque values for only 32-, 48-, and 70- volt power suppliers. Does this mean my steppers wont turn with a supply lower than 32? I ask because I can easily get my hands on a couple of these 6 V "lanturn batteries" (possible even 12 V ones) to connect to the motor: http://www.o-digital.com/uploads/2179/2182-1/Lantern_Battery_6V_4R25_2_320.jpg
Could a battery like this possibly supply enough power? Maybe if I hooked up 4 or 6 of them to get voltages of 24 or 36?
I tried to calculate a good voltage supply using a formula I found here http://www.geckodrive.com/ark-4/faq.html But no luck. I goes Drive Supply Voltage = 32 * vmH Inductance
Example of a motor with 4mH inductance:
32 * v4mH = 64VDC
I dont see how they got 64 V if its simply 32X4. I guess im missing something... Besides, with an inductance of 2.36 mH for my motor, 75.52 V seems a bit high.
So basically, Im asking how i might work my may up to these kinds of voltages (32, 48, 70) using other methods (possibly mutilating a phone charger or something?). I dont have a ready made driver board like what was recommended above (I was just gonna use a solderless breadboard and SN754410ne H-Bridge) and I think the ready-made ones have some "regulators" or something built in, so I dont know what kind of voltages are dangerous for my motors, or arduino, or myself.
If there's a method to figuring this out, could you also please enlighten me so I can spread the knowledge to other possible noobs.
Lastly, if speed vs torque is a factor in any of this, I just want to add that torque is more important to me than speed. I dont even know if these motors can move their own weight. 1.5 pounds is a little much...
Any input is greatly appreciated. Thanks in advance !