Thank you for that link, Jan. I would be interested in hearing of your
results.
Bill
On 9/01/2011 2:10 PM, Jan Kok wrote:
> An etching tank may not be necessary. See
> http://www.pulsarprofx.com/pcbfx/main_site/pages/tech_support/no_etching_tank/no_etching_tank.html
>
> I haven't tried it yet, but expect to try it in the next few days.
>
> I tried almost exactly what you proposed except I didn't get around to
> adding a bubbler - I just threaded an insulated wire through a hole in
> the board and used that to dip the board in the tank, like dipping a
> tea bag. The results were very unsatisfactory. The etching was slow
> but faster at the edges.
>
>
> On Sat, Jan 8, 2011 at 7:31 PM, nathan_h_tna<nathan_h_tna@...> wrote:
>> I'm sure this has come up before, but I'd like to build a cheap etching tank and wanted to get some advice before I actually do it.
>>
>> I was thinking of buying a good sized sheet of fairly thin acrylic from Lowes or Home Depot, cutting it up into two big pieces for the front and back of the tank, two tall but narrow pieces for the sides, and then gluing it all together with some of that plastic weld stuff.
>>
>> The idea is that the tank would be really narrow (maybe 0.2") so it wouldn't take much etchant to fill it up. I was also thinking of getting one of those "air bubble devices" (I don't know what they're actually called!) from a petstore and gluing it to the bottom of the tank with the end of the hose sealed off and a bunch of small holes poked in it to agitate the etchant. It might also be possible to put a lid on the tank and putting the air intake on the bubbler and putting it inside the tank so that the fumes aren't constantly being expelled from the tank.
>>
>> What are your thoughts?
>
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