Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Brian" <blue_eagle74@...> 
wrote:
>
> I started out by putting on rubber gloves. I cleaned my board with 
> sandpaper but it was kinda rough. Need to use a finer grade next 
> time. and a final cleaning with aolchol.
> 
> I set the iron on high. I taped my board to the paper with scotch 
> tape and placed a paper towel on it, folded in half. I pressed as 
> hard as I could and moved it around for 4 minutes and WOW!! The 
white 
> specks are pieces of the paper.
> 
> (see figure 1)
> 
> I put it in the etchent for 15 to 20 minutes or so, no heating or 
> bubbles, stirring every 30 seconds. and washed with water for 1 
> minute after all the copper was gone.
> 
> (see figure 2)
> 
> I had to use the sand paper again to get off the toner being 
carefull 
> not to sand too much and POW! There it was...
> 
> (see figure 3)
> 
> I will get the model of the laserjet printer and the paper later. 
My 
> friend did it for me. It looked like the lines spread a little 
during 
> the ironing. I will have to wait until I get to work to measure the 
> line widths. My prints look like 10 mil and my board looks like 15 
to 
> 20 mil. I still have to do electrical checks but it looks like it 
> will pass.
> 
> Brian
>
I forgot to add that the photos are in the photos section under the 
wadester13 folder.

Brian