Homebrew PCBs

Hello Art,

Is there any algorithm to figure out the feed rate? I am using a mill feed
of 6 inches per min at 10,000 rpm and it seems to be working well (in my
amateurish opinion). I am not sure what to look for (burrs, etc) to ensure
that it is actually working fine. Any thoughts, please?

I will just order the different degree bits and try them on to figure out
which is better.

BTW, I read that the CEM boards have a problem with small traces. The
traces supposedly cannot glue as well to CEM as to FR-4. Wondering if you
encountered that issue.

Thanks
Joe



On Thu, Dec 13, 2012 at 11:05 AM, Art Eckstein <
art.eckstein@...> wrote:

> **
>
>
> Joe,
> I use 30 IPM and 30,000 rpm
> No bother either as I am glad to give back to the system that has
> given me so much.
>
> Art
> Country Bubba
>
>
> At 11:01 AM 12/13/2012, you wrote:
> >Hello Art,
> >
> >Another quick question, What feed rate did you use?
> >
> >Thanks and Sorry for the bother,
> >Joe
> >
> >On Thu, Dec 13, 2012 at 10:37 AM, joe M <joe9mail@...> wrote:
> >
> > > Hello Art,
> > >
> > > Thanks for your advice.
> > >
> > > How did you end up using the 30 degree V-bit? Have you tried the other
> > > v-bits such as 45, 60 and 90? I am trying to understand how you went
> about
> > > the process. Whether you bought all the v-bits and just tried them all
> to
> > > figure out which one was best or if you were recommended that
> particular
> > > v-bit by someone.
> > >
> > > About the CEM board, I read that it is easier on the drill and mill
> bits.
> > > But, I also read that it emits a weird smell when being cut. Did you
> notice
> > > something like that? BTW, do you know if the fumes from cutting the CEM
> > > boards are carcinogenic? I have been told this "there are a zillion
> > > carcinogenic phenolic compounds...pentachlorophenol for example." Just
> > > curious, if you gave this any thought.
> > >
> > > Thanks again,
> > > Joe
> > >
> > >
> > >
> > >
> > > On Thu, Dec 13, 2012 at 9:25 AM, Art Eckstein <
> > > art.eckstein@...> wrote:
> > >
>
>  
>


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