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Subject: Re: [Homebrew_PCBs] messless pcb holder

From: Stefan Trethan <stefan_trethan@...>
Date: 2004-04-08

hi again...

at <http://www.electronics.dit.ie/techprocs/p_c_b.htm>
you can see a pcb holder like bungard makes them.

(Please not that this page may contain pictures which are
not suited for people with a strong inclination to tidiness.
if you can't cope with some mess don't look ;-) )

well, for those with a strong stomach you have seen the pcb holder.
(in the pictures in the middle, under the crust of FeCl)

what about removing the screws on the sides, and replacing them
by a plastic rod in the middle up through the top. the upper
bar holding the pcb could then be moved by sliding the rod.
some bracing would be needed to keep the bar parallel bat that's no
problem.
one could add a screw on top to fix the rod.

I think if one makes a vertical tank with a step on the side to rest the
holder
one could put in and take out a pcb with only two hands, not three.
right hand holds the frame on a handle and moves the rod (you have 5
fingers)
and the left hand operates the pcb with tweezers...

this would mean the holder stays above the etchant container all the time,
the occassional
drop well aimed back into the container.
the holder also would have a plate on top which forms the lid for keeping
in the fumes
when it is immersed (and stored).
i reckon the rod which moves the bar can be sealed off enough to prevent
air exchange.


Any good ideas welcome...

I'm rather disappointed that my new tank is not at all what i expected,
after
all it was a lot of work and time going into it (epsecially in two
screws.....)
It is working - but cumbersome....

ST