HP plotters

From: Gary M. Wheeler <g.wheeler_at_worldnet.att.net>
Date: Tue Dec 19 02:25:01 2000

re: From: Philip.Belben_at_powertech.co.uk
Date: 09/03/99-07:23:55 AM Z

>I like the idea of a router in the pen part of a plotter - but it's a lot
>mass for the pen carriage to move around!

Am working on a router table based on the HP 7225A single pen 8 1/2"x11"
flatbed plotter. To make architectural models out of foam etc.

Built an aluminum gantry-crane type arrangement that supports a Dremel tool.
Tried to keep mass and friction low as possible. Connected it to the plotter
with a pantograph arrangement.

The plotter will drive the dremel tool well at slow speed. HOWEVER, when
the plotter gets the message "PU" pen up, it RACES to the next x,y
coordinate. This quick movement throws calibration and accuracy off.

The other problem is printing from a Windows CAD program to an old plotter
like this.


Gary M. Wheeler, AIA
home page: http://g.wheeler.home.att.net
Received on Tue Dec 19 2000 - 02:25:01 GMT

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