Homebrew PCBs

In a message dated 3/2/2006 8:37:50 A.M. Central Standard Time,  
sbdwag@... writes:

how I  could cover the top side without putting a resist layer on it before I 
 etch.<<
What, you want to leave "unetched copper" on the TOP?   That will short 
intermittantly to ALL through-hole lead-wires, and will NEVER  work!  Unless you 
counterbored EVERY hole with a larger-dia. drill, and  then made EXTRA certain 
not to push parts all the way down against the top  copper before soldering on 
the bottom!  VERY cumbersome!  Does NOT  compute!
 
Most plain spray-paint will act as decent resist if you let it  DRY, and 
don't scratch it during handling.  But be careful the "overspray"  doesn't mess up 
your resist-pattern on the other side!  Better:   Simply etch-AWAY all the 
unneeded copper on the top side!







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