RE: [CAD_CAM_EDM_DRO] Re: LPT1

Sorry about that-I confused your post with one I saw recently from somebody
who just needed to get a +5VDC source to use with his parallel port.

I concur with those who have said that, no matter what the actual voltage
you get out of it, a USB-to-parallel converter will not work for a CNC
machine-the timing on these things is real screwy, from what I understand.
(I would love for someone to prove me wrong on this)

Heck, it's even difficult to get a real RS-232 output from a USB-to-serial
converter(but it CAN be done).

Andy Wander
Verrex Corporation

-----Original Message-----
From: Keith Bucklitch [mailto:keith.bucklitch@...]
Sent: Tuesday, August 09, 2005 11:22 AM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: RE: [CAD_CAM_EDM_DRO] Re: LPT1

Just to clarify, I wanted to know if the output from the LPT port via the
USB would be at 5 volts. I understand that the USB port puts out 5v, but
thought that there might be a voltage drop during the conversion to LPT
port.

Keith

At 22:17 08/08/2005, you wrote:

>I THINK HE MEANS GETTING 5vdc OUT OF THE usb PORT-NOT USING THE usb PORT
>ITSELF.
>
>Andy Wander
>Verrex Corporation
>
> -----Original Message-----
>From: c_holm10017 [mailto:cholm@...]
>Sent: Monday, August 08, 2005 5:12 PM
>To: CAD_CAM_EDM_DRO@yahoogroups.com
>Subject: [CAD_CAM_EDM_DRO] Re: LPT1
>
>Keith,
>
>I have no idea whether a USB to LPT converter will provide the
>required voltage, but you should also consider the software you are
>planning to use. For example, TurboCNC ONLY runs under pure DOS and
>unless you have DOS drivers with the USB to LPT connector that will
>allow you to output to the standard LPT addresses, I bet you will be
>out of luck. If your software is Windows based as I understand some
>are (Maybe Mach??), this may not be a concern.
>
>Chris
>
>--- In CAD_CAM_EDM_DRO@yahoogroups.com, Keith Bucklitch
><keith.bucklitch@w...> wrote:
> > I am interested in the comment that sufficient voltage is
>available from a
> > USB port. I was looking to purchase a new laptop the other day to
>drive my
> > CNC interface, and was surprised to find that this particular make
>(Acer)
> > did not have a parallel port as standard. The salesman tried to
>sell me a
> > USB to Parallel converter, but as I was unsure that such a device
>would put
> > out sufficient volts, I declined the sale.
> >
> > Can you confirm that the voltage from one of these USB-parallel
>converters
> > will put out sufficient volts?
> >
> > Keith
> >
> >
> >
> > At 05:19 08/08/2005, you wrote:
> >
> > >In a message dated 8/7/2005 7:31:48 P.M. Central Daylight Time,
> > >dave_mucha@y... writes:
> > >
> > >You can get 5v from the PC if the PC has 5V, but if you have
>less, that may
> > >be a problem.<<
> > >On newer PC's, you can steal 5VDC from a USB port. If you don't
>have those,
> > >there is almost-surely an unused "disk-drive power-plug" inside
>(the white
> > >things with the red, yellow, and two black wires). The Red wire
>should be 5
> > >VDC. The blacks are Gnd. (-ve). The yeller is 12 VDC.
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > >[Non-text portions of this message have been removed]
> > >
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>OFF Topic POSTS: General Machining
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OT

>subjects, that are not allowed on the CCED list.
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>NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM.
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>OFF Topic POSTS: General Machining
>If you wish to post on unlimited OT subjects
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>reach it if you have trouble.
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>http://groups.yahoo.com/group/jobshophomeshop I consider this to be a
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>OT subjects, that are not allowed on the CCED list.
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