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Re: [Homebrew_PCBs] Easy to machine circuit board?

2002-07-23 by Adam Seychell

JanRwl@... wrote:

>
>
>Yes.  The cutters will last longer, provided that is not "glass-fiber 
>reinforced phenolic".  It is the glass fibers in FR-4 that do-up cutters!  
>ONLY solid carbide drill-bits or router-bits can even be CONSIDERED to mill 
>glass-epoxy!
>
Reminds me when I went to cut a 900mm length of FR4 using a jigsaw. 
After about 3/4 of the way through the HSS blade was concave, with 
almost no middle teeth remaining. Carbide tooth jigsaw blades are 
available. A bit pricey but they probably last a hobbyist for ever.

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