spmatich vk3spm 
@spmatich@ioc.exchange
ex-twitter Greens Australia software developer NZ cricket physics whm AmatuerRadio
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Etching deity 1, Stephen 0
Etched PCB fail. The copper was eroded under the etch-resist ink. So there is not much left. Perhaps left too long, but also there is still copper between the pads in places where there was no ink.
I will make sure the copper is thoroughly cleaned before I apply the etch resist. I might even go something a bit more heavy duty than the etch resist pen. Nail polish?