RE: [CAD_CAM_EDM_DRO] port problem

Your'e on the right track with the voltages you're trying to measure on the
Dir pin.

Make sure that Mach2 is set up to point to the address of the port(first
page of Config/Ports& Pins), and that the port is enabled.

Make sure that Mach2 is set up to output the Step and Dir signals for at
least one motor, and that the port/pin settings are correct for those
outputs.

Make sure that Mach2 has the outputrs set to "Active Low.

Make sure you have run +5V to the Gecko Commons.

Andy Wander
Verrex Corporation


-----Original Message-----
From: John D. Bussema [mailto:bussema@...]
Sent: Wednesday, October 27, 2004 9:45 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: [CAD_CAM_EDM_DRO] port problem


Howdy,

I'm having some trouble interfacing my PC to my set of G320's. I have one
drive fully wired to a servo, and I'm trying to use Mach2 to get the thing
to spin. I installed Mach2 and set it to output step to pin 1 of the
parellel port and direction to pin 2. After trying to jog the servo for a
while with no success, I decided to check into problems I might have with
the parellel port. The first obvious one I found was that it wasn't enabled
in the bios. . . so I of course enabled it, happy that I had most likely
solved the problem. Unfortunatly that wasn't it. My first question is if
there is any simple way to test output. Lacking a scope, I tried testing the

logic level of the direction pin as I "jog" Mach2 in different dirrections.
I would expect to see something around 0 volts for one direction and
something around 5 volts for the other. . . right? My other question I guess

is if there is some common problem I could be overlooking. Anyone have a
simple fix?

Thanks,
John

----- Original Message -----
From: <JanRwl@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Wednesday, October 27, 2004 8:24 PM
Subject: Re: [CAD_CAM_EDM_DRO] rotary table as 4th axis


>
>
> In a message dated 10/27/2004 10:20:24 AM Central Standard Time,
> rogerstykle@... writes:
>
> has anyone here been able to convert a regular 6" 8" rotary table to
> cnc? I dont have a rotary table so I dont know if it's possible to get
> all or at least most of the backlash out. Im thinking about purchasing
> one but would like to see if you can do it before I spend the money.
>
>
>
>
> I once built a circuit to drive a stepper from a PC, the whole "set"
> connected to a Bridgeport mill's computer, making the 4th axis. The
> user-shop
> attached the stepper I provided to their 10 or 12" rotary table. I don't

> recall
> any discussion about backlash. I THINK there was no concern about this,
> as
> the accessory was always used rotating in ONE direction. Simple, really.
>
>
> [Non-text portions of this message have been removed]
>
>
>
> Addresses:
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timg@...
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[Moderators]
URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO

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
List Mom
List Owner


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