I would guess that there's a lot of runout on this, which does limit
the minimum trace width. One thing I might try when my Sillhoute
comes in is to use a laser to remove paint resist. You should also
use some sort of vacuum system to suck up the fiberglass dust.
If the machine is mechanically adequate for pcb milling, the next
step would be to convert it to use gcode like a standard cnc. This
should be relatively easy for someone "skilled in the art".
Mark
At 06:11 AM 9/12/2012, you wrote:
>I think he's using a flexible shaft extension like this:
>
>http://www.dremel.com/en-us/attachments/Pages/ProductDetail.aspx?pid=225-01
>
>
>
>--- In Homebrew_PCBs@yahoogroups.com, teknochaman <teknochaman@...> wrote:
> >
> > Amazing idea using a Dremel.
> >
> > btw, does anybody know which is the pictured Dremel model ?
> >
> > That will help to understand works that can be done with it
> >
> > Mine is far thicker and heavier to be supported by a small cutter
> >
> >
> > Hint or comments about the drilling part are highly appreciated.
> >
> >
> > Best,
> >
> > Samuel
> >
> >
> >
> > ________________________________________________________
> >
> >
> > Re: More on - Produce Quick & Cheap PCBs with a CNC paper cutter
> >
> > Mon Sep 10, 2012 7:48 am (PDT) . Posted by:
> > "Mark Lerman" mark_from_pomona
> >
> > You've inspired me - I just ordered a Sillhoute Cameo!
> >
> > I have a few
> > other ideas on how to use it and will post the results!
> >
> > Mark
> >
> > At 12:39 PM 9/8/2012, you wrote:
> >
> >
> > >I'm back for a second round. This time I changed tacks - I have
> > >turned the $270 CNC paper cutter into a 2.1D mill for mil-etching
> > >PCBs - instead of the original drag-knife method. See video here
> > >http://www.youtube. com/watch? v=rDRN1_i0vJU and some updated info
> > >here http://research. microsoft. com/en-us/ projects/ papercutterpcbs/
> > >
> > >I haven't calibrated the setup yet like ipm, position tolerance and
> > >repeatability and minimum isolation track width & repeatability but
> > >that will come. The original method I was trying to perfect was to
> > >drag a carbide knife through copper cladding to affect electrical
> > >isolation but the swarf remaining was a problem.
> > >
> > >Mike
> > ________________________
> >
>
>
>
>------------------------------------
>
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