Re: [CAD_CAM_EDM_DRO] I NEED HELP!

On Fri, 6 Jun 2003 17:49:10 -0700, you wrote:

>Mark,
>
>The 9 wires most likely were for a serial port.

I wouldn't think so if it were three wires per board.

I suspect that the mystery board took parallel or serial (possibly
just serial) information in, translated it to step and direction (and
possibly something else, an enable?).

If so, then a parallel port breakout board would be a possibility, and
you could drive it with anything that could supply this.

Although I do not have much of an idea of the available driver chips,
a listing of the chips on any one of the boards (assuming that all 3
are identical) would give us an idea of the logic family (probably
TTL), and feeding the board pulses (with some knowledge of the
connections from the 3 wires to what chips) would probably determine
what's doing what.

Harvey

>
>At this point, I would suggest rewiring it for Gecko drivers and Mach1.
>
>Look at the end of the stepper motors and find out any information that you
>can about them.
>
>Some of us on the list can help you with your project.
>
>Bob Campbell
>
>
>----- Original Message -----
>From: "mmcev" <mmcev@...>
>To: <CAD_CAM_EDM_DRO@yahoogroups.com>
>Sent: Friday, June 06, 2003 5:10 PM
>Subject: [CAD_CAM_EDM_DRO] I NEED HELP!
>
>
>> I have a mill here that was working once upon a time, but hasn't
>> seen the light of day for several years now. The mill has three
>> stepper motors which plug into a blue box that I have. The box
>> contains a working power supply and three stepper motor drivers (I
>> think thats what they are called). The motors plug directly into
>> these drivers. When I power on the box, the motors become
>> impossible to turn, so I assume that these drivers work properly.
>> Coming into each of these drivers are three wires which control the
>> motors somehow. Originaly these 9 wires plugged into a pcd board in
>> the bottom of this blue box. The board somehow connected the
>> drivers to the db-9 and db-25 pc ports on the back of the box. I
>> have been told that this board is bad. Even if it was good I
>> wouldn't know what sofware to use to get the mill running. Anyway,
>> I was wondering if there is a way to connect these 9 wires directly
>> to a pc and run some kind of software that would control the
>> motors. If that isn't going to work, what is the best way to get
>> this mill back up and running? I would really appreciate any advice
>> or suggestions you have for me. Thanks alot.
>>
>> My email is mmcev@... if anybody want to mail me directly.
>>
>> Thanks again!
>>
>> Mark McEver
>>
>>
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>OFF Topic POSTS: General Machining
>If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
>http://www.metalworking.com/news_servers.html
>
>http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
>NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>bill
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