Are these step motors right?

[mauribastidas]

Hello friends, I'm trying to build my first CNC machine and it has been a little difficult for me to get the step motors, I'm in Colombia and here these devices are not things that you can get easily, however in these days I got some used motors with the following reference Sanyo Step Syn 103-815-0740, 2.5 volts and 4.6 Amperes, there is not available information about torque. My cnc is a 70 X 90 cm, I need to know if they are enough, I thank your help.

[leaveme]

I've few of them, exactly the same steppers. Taken from scrape ship. Still not used them so I'm not sure about how much torque they have.

They are nema 34, 8 wires. You can try them as bipolar parallel.

[RoboDavo]

Hi,
I'm not sure if the part number is really nema34 size or not but if they are you should not have any trouble with power on your application.
Stepper motors have high torque at low rpm so should turn your axes ok but don't expect to go very fast.
You will need microstepping drives to get smooth drive from the stepper motors without vibration.
I am assuming you have a motion controller to provide the correct drive signals for the drives.
Hope this helps,
Regards,
David White (RoboDavo)
Advanced CNC Machines, CNC Router, CNC Profile Cutter and Plasma Cutter Manufacturer

[mauribastidas]

Thanks for your help!