Homebrew PCBs

In a message dated 2/16/2008 11:00:05 P.M. Central Standard Time,  
wb2edv@... writes:

Can I  simply drill through the glass epoxy into a piece of soft pine, or is 
that a  no-no???<<
Yes, but better, aluminum-clad fiberboard MADE for "backup" purposes.   It 
reduces the "exit burr" even a sharp, high-speed makes upon leaving the  copper 
on a PCB.
 
One other point:  A "drill press" MUST be used if you use carbide  bits!  A 
hand-held Dremel, no matter HOW fine and new the bearings may be,  and no 
matter HOW steady your hand is, will BUST carbide bits after one or two  holes!  
(Maybe you can do a few with a 1/16" or larger dia. bit, but NOT a  #56 or 
smaller!)
 
A HSS bit is perhaps flexible enough to tolerate hand-held drilling if you  
are SUPER-careful and accurate, but it will DULL in FR-4 after two holes!   
Carbide bits in a drill-press are the ONLY way to do it!  




**************Ideas to please picky eaters. Watch video on AOL Living.      
(http://living.aol.com/video/how-to-please-your-picky-eater/rachel-campos-duffy/
2050827?NCID=aolcmp00300000002598)


[Non-text portions of this message have been removed]