looking for information on using slo-syn M091-FD-6217 stepper

[bseibenick]

I have three SLO-SYN M091-FD-6217 stepper motors that I got to start a cnc project. The motors are rated at 150 oz/in and 1.8V/4.7A with 200 steps/rev. First I am trying to find some info about the motors, second I am trying to find out what size drive I really need to drive them and third what size power supply I will need to drive my three motors.

I have found a bunch of stepper drivers but they are only 2A or 3A. My want to eventually buy some Gecko's to drive it but I would like to find a relatively cheap single stepper driver to learn how the steppers work.

Any ideas or a place to start would be greatly appreciated. I hope this isn't a usual 'newbie' question as I have tried to read a bunch of posts but could not find what I was looking for.

Thanks,
Brian

[DennisCNC]

When it comes to controlling stepper motors AMPS are not as important as you might think, the more brains the drive has the better. Here is a example, I have a router with nema34 ~300oz motors. I had some Parker cd80m stepper drives they are 140v 8amp. So I ran them for a while the motors sounded weird and got pretty hot after a while and the max rapids were ~270 IPM. So latter I got three IM483 stepper drives:
http://www.imshome.com/im483.html
as you can see they are 48v and 3amp. Now the motors on the router stay cool all day they run much smother and the rapids are ~470 IPM. So any recent technology drive with ~3 to 4 amps will work perfect for you. Your power supply will depend on the drives.