so after ferric chloride, I thought this was a complete reaction... The color of the original copper was different to the reacted copper... Since i know no better, I continue with the next step.
I cleaned the toner off with thinners, cut a piece of chip board, clamped the PCB to the board so that I wouldn't drill holes through my Mom's kitchen table. Got out my manual hand drill & a pack of 0.7mm HSS drill bits.
I start the first hole & snap my first bit imediately!
My Dad decided to help me & we got a bit clever! We unscrewed the handle of the manual drill, then took put the power drill's chuck over the manual's handle. We balanced the drill combo on some masking tape & a small box, there was just enough spring to push down on the manual (red) drill to drill a hole, then it would spring back easily when done. This method worked for a while... then the manual drill's gears, which i assume are made from plastic started failing. All this hassle just because I don't have a drill press... yet...
So I think I'm done drilling... I find out later that i missed about 5 holes. It took 1hr25 to drill all the holes of a Arduino Serial.
After all that trouble, I realize that print out was not 1:1! I'm furious now! In my mind I still think that the board etched properly... The next day the board is black with oxide... So then I realized that I took it out the ferric chloride too soon!
I decided to just place in as many components as I could... just for some motivation... My holes we not straight... some of the headers would never fit no matter what! The manual drill "walks" a bit when you start drilling. The position you intend the hole to be in is seldom where it ends up.
Eventually I will either succeed with my own etching or I will go back to trying to figure out how to lay everything out on vero board. Either way, I have ordered an Arduino with my reprap kit order from the RRRF. I just have to wait for my brother to bring it back from the USA.