Re: [CAD_CAM_EDM_DRO] Possibly pointless micro hole drilling in paper :)

if you do a search for risograph, you get to a copier like mascine that
is a stencil and uses exactly this method to produce the stencil.

vajk

Graham Stabler wrote:

>I bought a plasma globe from Maplin (like radio shack) yesterday for
>almost nothing. After playing for a while I removed the globe
>leaving just the bare wire. This was always my intention as I am
>looking at making a small corona treater, anyway thats a different
>story.
>
>Take an insulated screwdriver and hold it close the the end of the
>wire and you get a spark between wire and screw driver. Place a
>piece of paper over the wire and tap with the screw driver and you
>get a tiny hole in the paper, longer taps produce larger holes. The
>smallest just look like dots unless you hold it to the light.
>
>The idea is to place an plate on the milling bed (probably insulated
>from the machine) and a pointed electrode in the chuck. Position
>some paper on top of the plate and the electrode just over the paper
>and switch the discharge with the PC. The result is CNC micro hole
>drilling though paper.
>
>Why? I have no idea, perhaps pretty pictures, perhaps filters,
>maybe higher voltage for leather marking.
>
>Graham
>
>p.s. High voltages are dangerous, don't play with them!
>
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