RE: EMC

Karl,

You may want to take a look at my website as I have some information on
setting up EMC. It is
http://www.ktmarketing.com

When used for steppers EMC outputs TTL signals for step and direction on
each of the 3 axis's. To interface it with stepper motors you need what is
generally referred to as a controller. It is an electrical unit that turns
each step pulse from EMC into the correct series of high voltage and
amperage pulses the motor requires to move the specified direction and
number of steps. If you are looking for a controller I would highly
recommend the kit units that Dan at Camtronics
http://www.seanet.com/~dmauch/ ) offers. Matt Shaver, who is on this list,
has just finished setting up a Bridgeport with steppers and EMC and I think
he started with the Camtronic controller and then when to a different brand
(at a MUCH higher cost) to get more power and speed.

Currently I am using one parallel port, but I do have EMC configured to send
auxiliary control commands (coolant, spindle brake, etc.) to a 2nd parallel
port, but I do not have anything running off the 2nd port at this moment.

Let me know if there are any other questions. You may also want to dig
through the mailing list archives as it contains a wealth of information on
EMC.


Tim
[Denver, CO]

> -----Original Message-----
> From: Karl Klemm [mailto:kklemm@...]
> Sent: Sunday, November 21, 1999 1:35 PM
> To: Tim Goldstein
> Subject: RE: [CAD_CAM_EDM_DRO] EMC
>
>
> Tim,
> Yup you're the first person to responed. I am actually setting up a demo
> site for the EMC. It will be retrofit on a bridgeport machine. I think I
> was told that it has steppers, not sure, I'm an electrical eng. student.
>
> I do have a couple of questions for you. First, how did you interface the
> parallel port and the machine? Did you just run wires from the pp pins to
> the steppers or did you use some sort of conversion interface, and if so
> how did you do it. Second how many parallel ports are you using?
>
> Lastly, just a general comment, to you, and anyone else who reads this, I
> am currently setting up an EMC webpage on my server. I would appreciate
> any info on setting up and running the program that you ould provide.
> Also, I'm going to attempt to inlude a section that will have EMC patches
> or files to download. Hopefully I will be able to amass a library of
> such so that there will be a plae to look for ideas when making produts.
>
> Thanks,
> Karl
>
>
> On Sat, 20 Nov 1999, Tim Goldstein wrote:
>
> > Karl,
> >
> > I was trying to catch up on the CAD_CAM_EDM_DRO list and saw
> your message
> > and it seems you have not gotten any response. Have you gotten
> it figured
> > out yet?
> >
> > EMC can drive 2 different types of motion control systems. It can run a
> > servo system and that requires a Servo-to-Go interface card. It can also
> > drive a step and direction type stepper motor controller and that is
> > interfaced through the parallel port. So, the answer is both are used
> > depending.
> >
> > I am currently running a 3 in 1 machine using EMC with stepper
> motors. Let
> > me know if I can answer any other questions.
> >
> >
> > Tim
> > [Denver, CO]
> >
> >
> >
> > > -----Original Message-----
> > > From: Kahl Klemm [mailto:kklemm@...]
> > > Sent: Thursday, November 11, 1999 11:16 AM
> > > To: CAD_CAM_EDM_DRO@onelist.com
> > > Subject: [CAD_CAM_EDM_DRO] EMC
> > >
> > >
> > > From: Kahl Klemm <kklemm@...>
> > >
> > > I'm new to the list and trying to find some info on
> interfacing a PC with
> > > the EMC on it and a machine. I read somewhere that you can do this
> > > through the parallel port directly, but I was also told that
> you need and
> > > LSI 2 bus card.
> > >
> > > KArl
>