Homebrew PCBs

On Mon, 05 Mar 2007 06:48:10 +0100, <JanRwl@...> wrote:

>
> Use a plywood fixture on a bandsaw.  Or, if you are very  skilled, make a
> fixture for your router, using a CARBIDE-edged bit!
> Or, if you are a lathe operator, first draw the circle with a  Sharpie  
> pen on
> a sheet of FR-4 (or whatever), then manually bandsaw "outside" of  the  
> marked
> circle (leaving 1.5-3 mm waste).  Then fasten the "blank" to a
> plywood-covered face-plate on the lathe with double-stick tape, and  
> fasten a  disk of
> plywood about the dia. of your finished PCB circle over the blank,   
> holding it in
> place with a live center in the tail-stock, cranked up nice and  hard.   
> Then,
> TURN the disk to final dim (and sand it!), being VERY  careful.  Don't  
> breathe
> that nasty glass/epoxy  dust!       Jan Rowland


If not many need to be done i suppose approximating the shape with any  
type of shear or saw will do, followed by sanding to the final dimensions.  
Dont breathe the dust.

ST