Yup, it was extravagant. Yes, we could have got one cheaper online for just a couple of days wait. But we wanted to try some press-n-peel straight away. And because we've been good little nerds these last few days, permission was given to just go out and buy one. Yay!
Within minutes of getting the printer working, we stuffed in some magic blue paper and re-printed our earlier design. All in all, from hitting the print button to getting our image onto the copper board took about five minutes. Maybe with a bit of time and effort, we could get our laser-etching down to this too, but just look at the quality and crispness of that transfer:
This board etched in about ten minutes, using the immersion etching method, in heated ferric chloride. No bridges, no touching up the board before or after etching. Nice and simple. And crucially, quicker (for us anyway) than laser-etching the etch-resist mask, plus it worked first time!
After removing the toner transfer mask, we ended up with our best etched board (for this design) to date:
Hopefully we'll have this drilled and populated in time to demonstrate it in action, at tomorrow's BuildBrighton meeting