Re: [CAD_CAM_EDM_DRO] Print Servers for CNC

On Wed Feb 26 06:55:59 2003 alex wrote:

>You know, Bill, for me price point is of a great importance,
>so the least expensive I found for $119, q-ty 1, made by www.abiatech.com.
>Never tried it, though.
>If you look at Circuit Cellar Mag, you'll find numerous companies making
>SBCs,
>there are getting more and more of them with every issue.
>For interfacing I would recommend to read "Build your own universal computer
>interface" by B.Chubb.
>Alex
>
>
>
>----- Original Message -----
>From: <ccq@...>
>To: <CAD_CAM_EDM_DRO@yahoogroups.com>
>Sent: Tuesday, February 25, 2003 9:57 PM
>Subject: Re: [CAD_CAM_EDM_DRO] Print Servers for CNC
>
>
>> As I've never played with one of these, can you suggest the best SBC board
>for
>> this, and the least complicated way to go about implementing and
>programming it?
>>
>> Bill
>>
>> On Tue Feb 25 11:23:31 2003 alex wrote:
>>
>> >Bill,
>> >use SBC as a physical interface. It is in turn connected to a "server"
>over
>> >the network.
>> >I/O card plugged into ISA bus of SBC can generate pulses for a drive.It
>also
>> >can
>> >generate analog signals for a servo, also whole bunch of other signals
>for
>> >relays
>> >and so forth.
>> >Server in this case is a controller which does processing of G-codes.
>> >Alex
>> >----- Original Message -----
>> >From: <ccq@...>
>> >To: <CAD_CAM_EDM_DRO@yahoogroups.com>
>> >Sent: Tuesday, February 25, 2003 2:33 PM
>> >Subject: Re: [CAD_CAM_EDM_DRO] Print Servers for CNC
>> >
>> >
>> >> Hi Alex;
>> >>
>> >> Because you need a physical interface to hook it all up to?
>> >>
>> >> Bill
>> >>
>> >> On Tue Feb 25 06:39:31 2003 alex wrote:
>> >>
>> >> >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
>> >>
>> >> --
>>
>>> -------------------------------------------------------------------------
>-
>> >--
>> >> 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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>> --
>> --------------------------------------------------------------------------
>--
>> 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!!!!!
>>
>> --------------------------------------------------------------------------
>--
>>
>> Addresses:
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>> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
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>you have trouble.
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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........
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>OFF Topic POSTS: General Machining
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>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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>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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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!!!!!

----------------------------------------------------------------------------