Re: [CAD_CAM_EDM_DRO] Re: Stepper Motor Driver

Hi,

The one I have in my hand is 5.1 volts but it would depend what other motors
I have in my box of bits. I'm sure I have three that are virtually the same.

Regards,

Terry


| > Hi,
| >
| > I was going to use this driver with 50oz motors of 1 amp using a power
| > supply of about 20 volts. The machine would be quite small for
| > drilling/routing circuit boards.
| >
| > Speed is not really an issue but I wouldn't want o wait all day for
| it to
| > finish a job. I thiught it was a cheap alternative to proper drivers.
| >
| > Regards,
| >
| > Terry
|
| These are proper drivers and would serve you well.
|
| 20 volts at 1 am is 20 watts. look for some 25 watt resistors. Or,
| use multiples of lower wattage.
|
| But, as others will point out, if you have 3 motors and 6 resistors
| and each is pulling 20 watts, that is 120 watts just to heat the
| resistors and not for the motor.
|
| What is the motor voltage ? the last clue needed to calculate the
| resitor ratings.
|
| Dave