Bitmaps - PCB registration

From: Richard Erlacher <richard_at_idcomm.com>
Date: Wed May 10 10:41:07 2000

The packages I've used (2 versons of OrCAD and EAGLE) seem not only to
provide registration targets, but certainly provide sufficient utility to
build such a symbol if it didn't already exist. Have you considered making
your own registration target?

If you do build it, be certain it's different from one side of each layer to
the other. If you include a bit of text, i.e. a layer identifier in your
registration target, that will help quite a bit. You may also want such an
identifier separate from the target, so you can be certain all the layers
are present when you look at a registered set of layer overlays. It must be
obvious which is which, however, as it's easy to reverse a layer if you have
both reversed text and "right-way-around" text in the copper.

Dick

----- Original Message -----
From: Cini, Richard <RCini_at_congressfinancial.com>
To: 'ClassCompList' <classiccmp_at_classiccmp.org>
Sent: Wednesday, May 10, 2000 9:16 AM
Subject: Bitmaps - PCB registration


> Hello, all:
>
> I'm continuing work on My6502 SBC, working towards producing a
> working PCB. I wanted to put registration marks on the artwork, but EDWin
> CAD does not appear to have built-in registration mark graphics.
>
> I did a search for electronics clipart, but the 11 sites had nothing
> useful.
>
> Does anyone have any useful registration bitmaps they can send me?
>
> Rich
>
> ==========================
> Richard A. Cini, Jr.
> Congress Financial Corporation
> 1133 Avenue of the Americas
> 30th Floor
> New York, NY 10036
> (212) 545-4402
> (212) 840-6259 (facsimile)
>
Received on Wed May 10 2000 - 10:41:07 BST