Homebrew PCBs

nice station.

i have the following question:

i don't know much about through hole plating but don't you have to rinse the
board after each chemical?
i wonder how you do this in this unit, do you have water compartments
between the process chemicals (or at least one?)
how do you change the water, how is it disposal handeled? (is the amount
small enough to put it into the sink?)
.

the only pcb "station" i saw was a small unit of bungard, but only used for
etching. it has nice flushing compartments which had small water jets on the
sides... it kept the water fresh by using fresh water at the jets and
disposing off excess.

i think the bags for your electrodes are of the standard woven glass fiber
material used for fiberglass parts (like making wings for smaller aeroplane
etc.)
i can't tell if it is one layer or more but i really think it is this stuff
from the pictures.

one can get this from supplies for making fiber reinforced plastics (planes,
repair of car hull) but also as "fire extinguisher blanked" (is used in
kitchen if fat burns). this is often quite a good quality and maybe easier and
cheaper to get than the stuff used with epoxy.

maybe this is of interest for the ones wanting to make such a unit.

((what does bungard charge for the bags?))


regards
stefan

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