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  1. CAD-CAM-EDM-DRO
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Laptops for CNC

Greg Nuspel
 

I know my system uses one parallel port for four axis. I thought most did.
Carlos Guillermo
 

I remember several people mentioning they're using old laptops to
control their machines. I thought most step/dir systems needed one
parallel port for every two axes. What do you do for three? Or, can
you somehow reconfigure the output pins for another step/dir channel by
forfeiting some of the extra I/O pins?

Some of the cheap laptops at

started me thinking. I was trying to find room in my basement shop to
setup my future CNC, but I can't find a spot for the CRT monitor! The
wall is the best place. I'd be happy saving space with a flatscreen LCD
display, but they're twice the cost of a used laptop.

Carlos Guillermo
VERVE Engineering & Design
Carlos Guillermo
 

What's your setup? Software, # axes, etc.? I think I heard MaxNC requires 2
ports for 4 axes, and I-LPT says the same.

-----Original Message-----
From: Greg Nuspel [mailto:gregnuspel@...]
Sent: Wednesday, May 10, 2000 6:45 AM
To: CAD_CAM_EDM_DRO@...
Subject: Re: [CAD_CAM_EDM_DRO] Laptops for CNC


I know my system uses one parallel port for four axis. I thought
most did.
Greg Nuspel
 

Look at CNCPro it uses one port for four axis. My setup is very different and uses a custom software for it's application. My system is a hot wire cutting system for making foam parts so it works more like a wire EDM with four axis all controlled from one port. The software runs on windows 95 using a clock interrupt signal to maintain real time.
Ray Henry
 

Message: 1[CAD_CAM_EDM_DRO] Digest Number 487
Date: Wed, 10 May 2000 06:48:18 -0400
From: "Carlos Guillermo" <carlos@...>

I remember several people mentioning they're using old laptops to
control their machines. I thought most step/dir systems needed one
parallel port for every two axes. What do you do for three? Or, can
you somehow reconfigure the output pins for another step/dir channel by
forfeiting some of the extra I/O pins?
Babyhex ran six motors from a single port with emc. Dave put pullup
resistors on a couple of the extra pins that were used.

Ray
 

Maxnc( pro deluxe), cncpro and DeskNC all use single ports.
Pin 2 x step, Pin 3 X Dir etc.

-----Original Message-----
From: Carlos Guillermo <carlos@...>
To: CAD_CAM_EDM_DRO@... <CAD_CAM_EDM_DRO@...>
Date: Wednesday, May 10, 2000 4:04 AM
Subject: RE: [CAD_CAM_EDM_DRO] Laptops for CNC


What's your setup? Software, # axes, etc.? I think I heard MaxNC requires
2
ports for 4 axes, and I-LPT says the same.

-----Original Message-----
From: Greg Nuspel [mailto:gregnuspel@...]
Sent: Wednesday, May 10, 2000 6:45 AM
To: CAD_CAM_EDM_DRO@...
Subject: Re: [CAD_CAM_EDM_DRO] Laptops for CNC


I know my system uses one parallel port for four axis. I thought
most did.

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