Re: [CAD_CAM_EDM_DRO] Print Servers for CNC

Why to use print servers when you can add networking app directly into the
code?
Alex

----- Original Message -----
From: <ccq@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Tuesday, February 25, 2003 9:45 AM
Subject: Re: [CAD_CAM_EDM_DRO] Print Servers for CNC


> Howdy Jeff;
>
> On Tue Feb 25 05:36:41 2003 Jeff Goldberg wrote:
> >
> >I don't think speed will be an issue with a modern print server as they
are
> >generally the same throughput as a PC parallel port. The problems may
arise
> >from the ability to directly output signals on pins which are unusual for
> >printers to use in the same way. Don't forget, they are not directly
> >coupled to your PC, so any fooling around that the programmer does with
the
> >innards of your PC to generate or read signals may not work on a print
> >server.
> >
> >Also, Ethernet works on a collision based retransmission basis. On a
small
> >network this probably wouldn't cause a problem, but on a network with
lots
> >of traffic flowing, your data may be slightly delayed in reaching the
print
> >server which might cause issues.
>
> You're thinking of using this on a hub vs. a switch here, yes? There are
single
> ether/parport units available, but I think that would tend to add delay
time,
> which is why I was thinking about a single NIC to triple parport solution.
>
> >I'd tend to suggest sticking to popular name brands because driver
> >availability might be an issue if you change operating systems in the
future
> >(unless the price difference is too great, and you get involved up front
> >with the assumption that it may end up as a paperweight sometime in the
> >future)
> >Theoretically, they should work, from a practical standpoint, you'd have
to
> >try it.
> >
> >Jeff
>
> Near as I can tell, the popular name brands only put out single port
units,
> but I don't have any comprehensive list to look at.
>
> Bill
>
> >-----Original Message-----
> >From: ccq@... [mailto:ccq@...]
> >Sent: Tuesday, February 25, 2003 7:28 AM
> >To: 2ccq@...
> >Subject: [CAD_CAM_EDM_DRO] Print Servers for CNC
> >
> >
> >The following URLs have a print server on them; That's a 10/100
ethernet
> >port feeding three parallel ports. Would these be usable for CNC work?
> >Would the software be able to access them properly? I would think they'd
be
> >speedy enough for smaller, slower machines, but.....
> >
> > http://www.pcbay.net/gen3parpor10.html
> > http://www.amastore.com/gen3porparpr.html
> >
> >Bill
> >
> >--
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> --
> --------------------------------------------------------------------------
--
> RKBA! ***** Blessings On THee, Oh Israel! *****
4-19!
> ----------------+----------+--------------------------+-------------------
--
> An _EFFECTIVE_ | Insured | All matter is vibration. | Let he who hath no
> weapon in every | by COLT; | -- Max Planck | weapon sell his
> hand = Freedom | DIAL | In the beginning was the | garment and buy a
> on every side! | 1911-A1. | word. -- The Bible | sword.--Jesus
Christ
> ----------------+----------+--------------------------+-------------------
--
>
> Constitutional Government is dead, LONG LIVE THE CONSTITUTION!!!!!
>
> --------------------------------------------------------------------------
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>
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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
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> 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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>
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>