Homebrew PCBs

Yes, I had heard about the indentation. I assume the indents are on 
the bottom so that I could mount the pcb on paper or cardboard?? Can 
a pcb fit mechanically without modification?
Mark

At 04:19 PM 2/4/2011, you wrote:
>Note:
>The pen moves in the X plane and the PAPER moves in the Y plane.  A PCB is
>rigid so you would need to attached to the equivalent of a paper carrier.
>
>The plotter technology is clever with the grit wheels actually indenting the
>paper on the first pass so the paper on future passes back and forth track
>the previous indented markings.
>
>A long time ago I played around with this idea but I was using a fiber optic
>cable to keep the laser stationary and the weight down for the pen assembly.
>Today lasers are much smaller.
>Bertho
>==============================
>
>From: Mark Lerman   Sent: Friday, February 04, 2011 15:38
>At 03:25 PM 2/4/2011, you wrote:
>
> >--- On Fri, 4/2/11, Mark Lerman <mlerman@...> wrote:
> > > From: Mark Lerman <mlerman@...>
>homebrew_PCBs@yahoogroups.com
> > > Date: Friday, 4 February, 2011, 18:52
> >
> > > work. Questions:
> > >
> > > 1 - How good is a plotter's resolution?
> >
> >Just a quick answer: the basic resolution of HPGL, the
> >HP plotter language that nearly all plotters use, is
> >40 steps per mm. So, if you add 40 to a co-ordinate,
> >the pen moves by 1mm. Now, I don't know if this is
> >the mechanical resolution of the plotter, but it sets
> >an upper limit to resolution, at least.
>
>Thanks - that would be .001 inch (1 mil) per step, more than adequate!
>Mark
>
>
>
>
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>
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