Homebrew PCBs

Guys, doing a successful proof of concept and actually using something are  
two totally different things.

My first try today with silicone paper was not that bad. A irregularity in  
the silicone layer (my bad) caused a small flaw but otherwise it was OK.  
But then it went downhill.

I used too small sheets, jammed in the printer (often).

The fuser has the upper roller driven, the lower isn't.
This causes the paper to be dragged faster than the PCB, smearing all and  
everything.
Not sure what can be done, maybe holding together, or envelope, or...
(worst case make both rollers driven sync.)

now the printer is acting up, printing stuff where there is nothing meant  
to be. (thought drum is damaged, but visual is ok, suspect paper fragment  
somewhere).


Well, short story i need that pcb tomorrow so i used inkjet paper again.

But i do think the problems are minor, and i think it will work out some  
time soon.
Maybe later today i can try some more with silicone paper.


Oh, by the way, the new tank is up and running and the bubbler hose is...  
sufficient.. i need a biggger (or second) pump then it will be fine. Note  
that in etchant bubbles are smaller than in water, all other things beeing  
equal.

ST