Homebrew PCBs

M. Guy:

If you can go back and find some information on the Kepro company, you
might be able to see some photos of the dip-coat tank that they sold
many years ago.

The beauty of the Kepro setup was that it was made of rather "generic"
hardware parts and could be easily duplicated in any modestly equipped
home workshop.

The only problem with any form of dip coating is that there is always  a
"wedge" or a slightly thicker coating at the very end of the coated PC
panel. That would be the last edge emerging from the dip tank.
But this problem is of no consequence if the size of the panel is 
slightly longer
that the actual PC pattern, and you don't actually use the very end of the
panel.

Too bad that Kepro went out of business when reliable, low-cost dry film 
resist
became widely used in the PC fab industry.

Roland F. Harriston, P.D.
***********************

>
> >The "dip tank" method is very successful for coating large PCB panels.
> The size of the panel is only limited by the capacity of the dip tank.
> Usually, the "pro" machines have a controlled withdrawal mechanism
> which assures even coating.
> That's what I was thinking. Maybe a stepper motor and simple control
> would do the job.
> Charlie
>
> [Non-text portions of this message have been removed]
>
> 



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