RE: [CAD_CAM_EDM_DRO] stepless in New Jersey

Is there a ground wire between the Gecko and the parallel port cable
(pin 18-25) ?

When you say step on port 2 and dir on port 3, I assume you mean pin 2
and 3? If you do mean port, I believe TCNC requires each motor to be
driven by a single port, ie. Step and dir on lpt1, phase a-d on lpt2,
etc.

A good way to troubleshoot is by setting the step increment (main -
setup - axis setup) to .001 in/step. Then you can go to the manual
machining/jog menu and "jog" by 0.001. This will let you watch the bits
toggle, one at a time (for phase), or one pulse at a time (for
step/dir). You can also set the pulse width really high to give you a
better chance of catching it.

There is also the FKEYBIT program included with TCNC so you can toggle
bits at your leisure. Don't forget to include your port on the command
line, it defaults to 0x278 (lpt2), which seems odd to me. Eg. C:\cnc>
fkeybit lpt1

Regards,
JJ

Be Kind, Be Careful, Be Yourself

> -----Original Message-----
> From: Dan Statman [mailto:dan.statman@...]
> Sent: Friday, August 09, 2002 1:37 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: Re: [CAD_CAM_EDM_DRO] stepless in New Jersey
>
>
> Dave,
>
> I initially had trouble because my parallel port was not the
> default one
> addressed by turboCNC. Go into your setup screen and toggle
> to another port
> address for the printer. I think there are 3 choices. One
> of them should
> work for you.
>
> Dan.
>
> ----- Original Message -----
> From: "turbulatordude" <davemucha@...>
> To: <CAD_CAM_EDM_DRO@yahoogroups.com>
> Sent: Friday, August 09, 2002 1:24 PM
> Subject: [CAD_CAM_EDM_DRO] stepless in New Jersey
>
>
> > Hi all,
> >
> > I need a little break.
> >
> > put together a simple power supply, 10 A transformer, has multiple
> > leads so I could get the voltage I like, 28 in this case. Outputs
> > just shy of 40 volts after a 68,000 uF cap.
> >
> > Old compac 486-100 and turboCNC
> >
> > I am trying to make sure everything is working properly.
> >
> > Gecko 201a ( early model) and a 0.85 amp 6 volt Vexta. uni-polar
> > connected as a bi-polar.
> >
> > The low voltage is just because I want to make sure it works.
> >
> > 470 alum cap on the 1 & 2 pins of the Gecko, 12K resistor
> on the set-
> > resistor input. ( 1.5 A )
> >
> > TurboCNC set for port # 2 for step. # 3 for direction.
> >
> > Tried to output steps, but alas, no response. I did check
> the set-up
> > and it was using port #2 for step, #3 for direction
> >
> > I am using the 5 volt from the computer power supply for the
> > step/direction power. could measure 5 v across the Gecko pins. ( 8
> > and 10)
> >
> > when I pulled the wire on step, I noticed the Gecko LED flicker a
> > little. by rubbing the lead onto the terminal ( I know,
> bad idea) I
> > could see and hear the motor step.
> >
> > OK, oh wise ones, what am I doing wrong ? er... how best to get
> > this puppy to respond to software ?
> >
> > Dave
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > Addresses:
> > FAQ: http://www.ktmarketing.com/faq.html
> > FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> >
> > 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 as 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........
> >
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> [Moderator]
> > URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> > bill,
> > List Mom
> > List Owner
> >
> >
> >
> > Your use of Yahoo! Groups is subject to
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>
>
> Addresses:
> FAQ:
> http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> 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 as 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........

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