[TowerTalk] How do you get a good looking trace when etching?

[Mike Fahmie via TowerTalk]

It's been a looong time since I've made my own boards, but I just pulled one to check it for the qualities you seek.  They look acceptable!

My technique used spray on photo resist, contact exposure to a large UV source.  Etching in heated Ferric Chloride with frequent agitation.  I prepared the boards by first scrubbing with Ajax followed by double rinsing.  Resist was sprayed on and baked in low temp oven (per instructions).

-Mike-
WA6ZTY



>________________________________
> From: Roger (K8RI) on TT <K8RI-on-TowerTalk at tm.net>
>To: "towertalk at contesting.com" <towertalk at contesting.com> 
>Sent: Sunday, August 3, 2014 8:38 AM
>Subject: [TowerTalk] How do you get a good looking trace when etching?
> 
>
>Over the years I've tried etching boards with various methods. I have 
>never gotten a good looking trace. Whether the trace area is cleaned and 
>painted on, or photo sensitive, the edges are always irregular.  They 
>are not straight and taper to a thin edge. Just what you don't want.
>
>Temp, chemicals (Typically Ferric Chloride IIRC), chemical dilution, 
>agitation: All according to directions with the same results.  I finally 
>gave up.
>
>  
>73
>
>Roger (K8RI)
>
>
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