Homebrew PCBs

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