I read from somewhere that you have to change the circuit on the back of the motor for it to work ? |
Hmm, I think that it is hard to use the printer's circuit board to make a router job.. But, it is quite hard to understand how to interface the new board to the unipolar step-motor too..
Check my new thread>
http://www.cnczone.com/forums/showthread.php?t=15159
Hmm.. here about datasheet of Mitsumi M42SP-7 step-motor..
I thought it is simillar with the motor we used..
"The M42SP-5 has acquired the highest output torque among the outer diameter 42mm model series-holding torque: 78.4mN-m, pull out torque: 27.6mN-m/200pps, and pull-in torque: 26.5mN-m/200pps(12VDC)." |
Would you kindly explain about what's the different between holding-torque, pull out and pull in torque.. I feel dizzy to understand this..
Just I'm not in electrical background..