Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

On Fri, 23 Nov 2007 15:32:04 -0600, you wrote:

I have a commercial tank, GBC, I think. I would not buy it again.

It has:

1) fitting lid

2) no heater (supply your own)

3) solid plastic molded everything

4) bottom molded plastic holder with bubbler tube

5) threaded nylon rod to pull out the holder and tubes

PROBLEMS:

1) holds a lot of etchant

2) rod broke at the bottom, stress, etchant, whatever

3) not a good seal at the top

4) holds 1 1/4 gallons of etchant.

Making my own holder from some fiberglass/nylon rod and making a
bubbler tube by drilling cheap fish tank tubing works well.

Bread container from WalMart seals better than commercial tank with
tubing holes....

Bread container needs less etchant

CONS: Bread container will etch only one board at a time if the board
is large enough (say 5x7).

Harvey


>
>Markus Zingg wrote:
> >
> > Dave,
> >
> > Just my 2¢, but that web-tronics offer seems fairly good to me. Not only
> > is it a molded tank (and as such definately never leaking), but made for
> > the purpose including hangers pump etc. I mean, even if you put your own
> > etching system together, you are likely to spend a similar amout of
> > money let alone the time you need to get the different parts etc.
> >
> > The reason I see why one makes his own tank could be lead and delivery
> > time to get said tank though :-) I also made my own tanks over time, but
> > I must say I'm really impressed by this offer.
> >
> > Again, just my 2¢ here....
> >
> > Markus
>
>Markus,
> If they lasted without leaking (as someone else noted) then it would
>be a great deal. If they end up leaking, or the possibility is there,
>then I may as well just make one. Besides, thats part of the fun. I will
>get to scheme up a mechanical agitator. :)
>Thanks,
>Dave