I just etched my PS board this morning. Not too bad for a first try:
http://members.lsol.net/gop4evr/unlinked/psboard.jpgI used homebrew etchant (2:1 hydrogen peroxide/muriatic acid). At $2.69/gallon for the muriatic acid and 69 cents/quart for hydrogen peroxide, this sure beats paying $6/pint for the FeCl. It works well, but has some odor. I used it outside just as an extra precaution.
Those who were following this project on E101 will notice that I rotated the regs 90 degrees (to make room for the heat sinks and give better airflow). It was suggested that I add some filled areas for heat dissipation, and I probably went overboard. I figured that since I had the room to work with, the wider traces couldn't hurt anything and would also give me some fudge room in case of etching voids. I am pleased with the result, which was made possible by the information I gleaned from this group and related web sites. Thanks guys.
Nels
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