RE: [CAD_CAM_EDM_DRO] Re: Why is my feedrate slow with stepper motor

You don't need to replace the motors to use a bi-polar drive. Just use a
half coil setup with the bipolar drive.

Tim
[Denver, CO]

> -----Original Message-----
>
>
> I found the hiccup in my data stream.
>
> I'm using K-Kam-3 - windows based software. The software provides a
> screen readout of position and plots the tool path in real time with
> the output to the printer port. There is a setting to
> disable position
> update. I tried it and my hiccup went away!. I'm now able to get
> about 3.5 IPM before torque falls off and I loose steps. (Up from 1.5
> IPM).
>
> That Identified I can now work on increasing voltage in my L/R drive
> circuit - plan to push to about 42 volts. This I can do quickly.
>
> I'm on a limited budget so a chopper circuit and new motors
> (bi-polar)
> will need to wait for a home made solution.
>
> Thanks to all for the useful input.
>
> Roger Nicholas
> Akron OH