Homebrew PCBs

Yes Curt, definite interest even though I would need to Australianise the 
design for local materials.
Bill

----- Original Message ----- 
From: "curt_rxr" <cwrxr@...>
To: <Homebrew_PCBs@yahoogroups.com>
Sent: Thursday, July 07, 2005 8:52 AM
Subject: [Homebrew_PCBs] PCB EDM -- further thoughts


> Hi All,
>
> Stefan and Bengt were interested in my attempts to configure an EDM
> PCB milling machine.  Since my machine was built using surplus from my
> lab's research efforts into nano-optical circuits the cost of
> recapitulating it would be out of the range of most experimenters ( ie
> the base is 3/8 inch ground plate, the ways are Thomson linear ball
> bearing slides and the controller is a Philips LPC2138 programmed in
> Pygmy Forth ).
>
> While I will happily buy a digital camera and post pictures of my
> system, I wonder if there would be more interest in a system built
> from the "ground up" out of:
>
>                        1) Channel and angle iron available from "Home
> Despot" ( or the like! );
>
>                        2) Teflon linear bearing and air hardening
> drill rod for ways, acme threaded rod and nuts ( from Enco );
>
>                        3) A3967SLB stepper drivers (  Newark online
> )
>
>                        4) ( most of all! )  An old Pentium or 486
> running EMC or the like for a controller.
>
> Such a system would cost under $100 US and not need a lathe or mill to
> construct.
>
> I eagerly await your comments.
>
> Curt
>
>
>
>
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> Photos:
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>
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