--- In
Homebrew_PCBs@yahoogroups.com, "Mars Bonfire" <mbonfire@...> wrote:
>
> I must admit I enjoy reading this group, not the least of my enjoyment from the diversity of ideas on how to make pcbs at home. I am a toner transfer practitioner which suits me fine. I have done photoresist many moons ago when I had access to the coating chemicals.
>
> Currently I am working on building a 3D plastic printer (google reprap if curious) and it occurred to me that printing plastic (or a meltable material that would resist etchant) on a pcb would be yet one more way to put down etch resist...any I won't bet someone has not already tried it. Now you won't catch me trying it but...any thoughts?
>
As an etch resist I imagine it would work, as long as it stuck to the copper well enough. After all, melted plastic is pretty much what toner-transfer is, isn't it?
Although I am not too sure about resolution, I can't see it managing fine-pitch SMD ICs, somehow.
You might get better results replacing the extruder head with a Dalo pen. (save plastic, if nothing else)