AW: [sdiy] Microwave Ferric Chloride

[Scott Bernardi]

Much better solution: an etchant tank actually made for doing PCB's, 
with heater and bubbler. Only $40 at Circuit Specialists.
http://www.web-tronics.com/lowcosetsysw.html
Also, I use Ammonium Persulfate rather than ferric chloride - doesn't 
stain (although it does bleach!).
These guys have the best deals on presensitized PCB's I've seen 
anywhere, also.


Nils Pipenbrinck wrote:

>About microwaves and ferric cloride.
>
>I don't really see a reason to do it.. don't know if it's really dangerous,
>but it sounds like a bad idea to me. It also takes no time with an oven if
>you start at the right time.
>
>When I exposure my pcb's I go into the kitchen and make a pot of boiling
>water. As soon as it boils I just put a plastic-jar of etchant into the warm
>water.. (and turn off the oven). Then I develop my pcb, clean it and check
>if I need to repair a trace or two.
>
>In this time the etchant has plenty time to warmup and usually a fine
>temperature.
>
>  Nils
>
>
>
>
>
>  
>

-- 
Scott Bernardi
sbernardi at comcast.net