Re: [CAD_CAM_EDM_DRO] Hp 7475 Plotter Servo's

I have a UNYSIS A-B size plotter that's supposed to have been made either by
HP, or made to exactly emulate it. My DesignCAD v5.0 has the capability to
'talk' to the HP 7475. I've plotted many drawings with it. If it would
help, I can e-mail you a 'working' file that you should be able to 'drip
feed' to the plotter, to see if it actually works??? Lemme know 'off list'.

RayHex

-----Original Message-----
Date: Thursday, September 29, 2005 6:26 AM
Subject: Re: [CAD_CAM_EDM_DRO] Hp 7475 Plotter Servo's

>Alan,
>
> According to everything I have read on the plotter a NULL Modem cable

is

>required. So I went out and bought a new serial cable with a null modem
>adaptor. Still does not work. This was after I tried making my own cable
>based on the pin outs that I had read would work, no joy. I set the baud
>rate, parity, stop bits, and everything on the dip switches just as I had
>read was the thing to do from several different web sites on turning a 7475
>into a vinyl cutter. I'm running windows xp and the driver for it is a

<snip>