Once you’ve restricted all your hobbyist designs/experiments to SMD, how do you go about producing the PCBs needed for prototyping? Personally, I dread the thought of etching my own boards.

If you’ve ever etched your own PCBs using ammonium persulfate ... [acidbourbon] built his own, though, and there’s almost no part of this DIY heater/stirrer that isn’t a hack of some ...