Homebrew PCBs

I just etched my PS board this morning.  Not too bad for a first try:
http://members.lsol.net/gop4evr/unlinked/psboard.jpg

I 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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