Step 3: transfer to copper
These are the generic instructions that I follow anytime I etch my own PCB's:
You need an Iron, a Scotch-brite pad, a few paper towels, and some Acetone.
Before you start, plug in your iron and turn on to highest setting.
1. scrub copper clad with a scotch-brite pad until shiny
2. use acetone on a paper towel to wipe off copper dust from copper clad
3. repeat step 2 until there is NO visible dust being removed, folding the paper towel after each wipe. re-apply acetone as needed. If you don't get ALL the dust off, it will not transfer.
4. Let dry for a few minutes.
5. pre-heat the copper clad with the iron for a minute or so, using a freshly removed piece of magazine paper (the less pictures the better) between the iron and copper clad.
6. remove iron, and CAREFULLY place print onto the copper and press it down.
7. add another piece of magazine paper between your print and the iron to keep from ripping the print.
8. Press hard with iron, moving every 30 seconds for about 3 minutes.
9. remove iron and let cool for 10 minutes.
10. place in container with warm soapy water for 20 minutes to dissolve paper.
11. remove paper with thumb, scrubbing it until it is all gone and there is only toner left.
12. If you have any smeared tracks, clean them up with a small flat-head screwdriver. If you scrape too much away, use fingernail polish to add some more "toner" where needed.
on to etching...