Homebrew PCBs

Gents:

Years ago I was writing up an engineering change order
for a PC board for which I was the project engineer.   It
involved illustrating how to add a jumper, remove a part,
cut a trace, that kind of thing.

Instead of trying to make the illustration using a camera
I just placed the PC board on the company copying
machine and made an image.   Worked out quite well
for the foil side of the board and almost as well for the
component side.

- Jim W4ENE



[Non-text portions of this message have been removed]

On 16/05/2011 15:46, Jim Tonne wrote:
>
> Gents:
>
> Years ago I was writing up an engineering change order
> for a PC board for which I was the project engineer.   It
> involved illustrating how to add a jumper, remove a part,
> cut a trace, that kind of thing.
>
> Instead of trying to make the illustration using a camera
> I just placed the PC board on the company copying
> machine and made an image.   Worked out quite well
> for the foil side of the board and almost as well for the
> component side.

I worked for Rank-Xerox in the 60s and 70s.

A large bread company used a similar technique for quality control - 
they photocopied slices of bread so that they could measure the size of 
the holes.

One of our customers noticed some strange copies left on a machine. It 
transpired that the cleaning ladies were removing their underwear, 
sitting on the platen, and photocopying their nether regions.

Leon
-- 
Leon Heller
G1HSM

A scanner also works well, even for the component side.
The image can look slightly strange, especially with taller
components, since perspective is missing.

Apparently the older scanners have a better focus depth than the new
very thin scanners.

ST

On Mon, May 16, 2011 at 4:46 PM, Jim Tonne <tonne@...> wrote:
>
> Gents:
>
> Years ago I was writing up an engineering change order
> for a PC board for which I was the project engineer.   It
> involved illustrating how to add a jumper, remove a part,
> cut a trace, that kind of thing.
>
> Instead of trying to make the illustration using a camera
> I just placed the PC board on the company copying
> machine and made an image.   Worked out quite well
> for the foil side of the board and almost as well for the
> component side.
>
> - Jim W4ENE
>
>

Haha wow!  This really happened?!  And more than one lady was doing it?

On 5/16/2011 11:26 AM, Leon Heller wrote:
>
> On 16/05/2011 15:46, Jim Tonne wrote:
> >
> > Gents:
> >
> > Years ago I was writing up an engineering change order
> > for a PC board for which I was the project engineer. It
> > involved illustrating how to add a jumper, remove a part,
> > cut a trace, that kind of thing.
> >
> > Instead of trying to make the illustration using a camera
> > I just placed the PC board on the company copying
> > machine and made an image. Worked out quite well
> > for the foil side of the board and almost as well for the
> > component side.
>
> I worked for Rank-Xerox in the 60s and 70s.
>
> A large bread company used a similar technique for quality control -
> they photocopied slices of bread so that they could measure the size of
> the holes.
>
> One of our customers noticed some strange copies left on a machine. It
> transpired that the cleaning ladies were removing their underwear,
> sitting on the platen, and photocopying their nether regions.
>
> Leon
> -- 
> Leon Heller
> G1HSM
>
> 


[Non-text portions of this message have been removed]

On 16/05/2011 16:42, Jeff Heiss wrote:
> Haha wow!  This really happened?!  And more than one lady was doing it?

Apparently so, the images were different.

Leon
-- 
Leon Heller
G1HSM

Leon Heller wrote:
> On 16/05/2011 16:42, Jeff Heiss wrote:
>   
>> Haha wow!  This really happened?!  And more than one lady was doing it?
>>     
>
> Apparently so, the images were different.
>
> Leon
>   
Whole buns are like that...

(Couldn't stop myself)

Bruce

This is one of the many stories that I've heard. I worked for Xerox for 40 years 
in NY.




________________________________

From: Jeff Heiss <jeff.heiss@...>
To: Homebrew_PCBs@yahoogroups.com
Sent: Mon, May 16, 2011 11:42:48 AM
Subject: Re: [Homebrew_PCBs] Using Xerographic machine for imaging

  
Haha wow! This really happened?! And more than one lady was doing it?

On 5/16/2011 11:26 AM, Leon Heller wrote:
>
> On 16/05/2011 15:46, Jim Tonne wrote:
> >
> > Gents:
> >
> > Years ago I was writing up an engineering change order
> > for a PC board for which I was the project engineer. It
> > involved illustrating how to add a jumper, remove a part,
> > cut a trace, that kind of thing.
> >
> > Instead of trying to make the illustration using a camera
> > I just placed the PC board on the company copying
> > machine and made an image. Worked out quite well
> > for the foil side of the board and almost as well for the
> > component side.
>
> I worked for Rank-Xerox in the 60s and 70s.
>
> A large bread company used a similar technique for quality control -
> they photocopied slices of bread so that they could measure the size of
> the holes.
>
> One of our customers noticed some strange copies left on a machine. It
> transpired that the cleaning ladies were removing their underwear,
> sitting on the platen, and photocopying their nether regions.
>
> Leon
> -- 
> Leon Heller
> G1HSM
>
> 

[Non-text portions of this message have been removed]




[Non-text portions of this message have been removed]

Yes, my old HP 4c scanner was great for this. I could use it as a very closeup camera, the depth of focus was great.

But then I got a very thin Canon scanner. Anything not in intimate contact with the glass is out-of-focus. Impossible to scan a manual or book pages in. I practically had to iron letters flat, or the lines adjacent to the folds would be blurry. Horrible.

Too bad my old HP died. I used it to scan my vinyl cutter produced PCBs in the Files section. Worked much better than using a digital camera, no flash reflection, no parallax from a closeup.

Steve Greenfield AE7HD

--- In Homebrew_PCBs@yahoogroups.com, Stefan Trethan <stefan_trethan@...> wrote:

>
> A scanner also works well, even for the component side.
> The image can look slightly strange, especially with taller
> components, since perspective is missing.
> 
> Apparently the older scanners have a better focus depth than the new
> very thin scanners.
> 
> ST
>