Re: [CR]Pantography Technique and Prcoess Question

(Example: Events:Cirque du Cyclisme:2004)

Date: Thu, 08 Mar 2007 08:53:32 -0500
To: Classic Rendezvous <classicrendezvous@bikelist.org>
From: "John Betmanis" <johnb@oxford.net>
Subject: Re: [CR]Pantography Technique and Prcoess Question
In-Reply-To: <e418bd5912982.45effbe8@optonline.net>


At 12:04 PM 08/03/2007 +0000, gholl@optonline.net wrote:
>I gather that pantography is a form of engraving.
>I'd like to be educated as to the technique

Basically, you engrave the design or lettering by following a master with a stylus and the motion is relayed to a rotating cutter via a mechanism that reduces it to the required size. The master is usually made of letters set in a track, like this:

http://www.gravers.com/iedpanto.html

Nowadays a CNC mill would be used.

This technique was also used for very precise lettering in drafting before CAD took over.

http://tpub.com/engbas/3-35.htm

I expect the pantographing was done after anodizing and then filled woth paint or protective clear laquer.

John Betmanis
Woodstock, Ontario
Canada