help needed driving a bipolar stepper motor with dual H-bridge

Using Arduino Motors, Mechanics, Power and CNC
3

Hi Ruggedciruits, thanks for the advise. I couldn't find the motors specifcations on the internet, however the part numbers are below.

I did find a 10ohm and 40ohm mark on two of the motors. Does this mean that at a 12v potential the current through the motors would be (I = U/R = 12/10 =) 1,2A and 0,3A? the l293d should be able to cope with at least the 0,3A current (5 x L293D L293 PUSH-PULL FOUR CHANNEL MOTOR DRIVER IC | eBay). Can I regulate the current by adding additonal resistors parallel to the psu circuit?

thanks

steppers:

  • epoch t13196ah (40ohm)
  • mitsumi M42SP-6TG LF (lot.no.T 55829 10ohm)
  • OKI (EM-546 7X27AN2)