Re: [CAD_CAM_EDM_DRO] Re: M57-102 < - - - - > PC

m0nkey0ne wrote:

>--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@p...> wrote:
>
>
>>m0nkey0ne wrote:
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>>>>
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>>>The information I found was in the obsolete section at
>>>http://www.compumotor.com/manuals/literature_user.htm . They had
>>>that particular motor number listed. The information did not tell
>>>
>>>
>me
>
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>>>much...more of a user manual rather than installation sheet.
>>>TA Randy
>>>
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>>>
>>>
>>>
>>The step/direction inputs are given on Page 17 of that manual.
>>It is a stepper after all. Most confusing that a later series of
>>servo motors alse used the M series designation.
>>
>>Jon
>>
>>
>
>With this information is it just a matter of using a PC to go high
>(or low) for direction and then pulse a certain number of times
>through a designated pin on the parallel port to get the right motor
>to turn the right direction the right amount? If so, I am lacking
>software or program to do this. Can it be done with VB?
>
>

In theory, yes. But, it gets much more complicated than that, as you need
to smoothly ramp up the step rate, and then ramp it down at the end of the
move. If it is a 2-axis move, then you need to ramp up both axes in a
coordinated manner, or the line won't be straight.

You would do best to get a CNC program that will support the type of
operation you need.

Jon