Re: [CAD_CAM_EDM_DRO] Print Servers for CNC

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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