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Subject: Re: [Homebrew_PCBs] Re: Produce Quick & Cheap PCBs with a CNC paper cutter

From: Eldon Brown <eldonb46@...>
Date: 2012-06-22

Has anyone reverse engineered the CirCut?
Or, is there a known problem in doing it?

I think the Bus Pirate
<http://dangerousprototypes.com/bus-pirate-manual/>or would be a
helpful tool in an effort.

See it at: http://dangerousprototypes.com/bus-pirate-manual/

Regards,
Eldon - WA0UWH


On Thu, Jun 21, 2012 at 7:02 PM, jeremy youngs <jcyoungs76@...> wrote:

> ∗∗
>
>
> LinuxCNC (or anything else for that matter) won't talk to the CriCut, you'd
> have to add your drivers and bypass all the electronics. Most of these
> things use some form of HPGL, or mangled a bit to provide security
> (presumably that's how it was reverse engineered).
>
> not necessarily true some printers run a simpl l293, 278 or 298 that will
> directly communicate with lcnc, i know ive built them, however if your
> machine is operated via microprocessor without the source code it will not
> work as you say. This is why i said the pinout was necessary as if it has
> enable input , or bus line it probably will not work, if it has simple step
> and direction inputs as per the ic mebtioned above I could make it work. I
> say try it the only thing he has to lose is some time.
>
> [Non-text portions of this message have been removed]
>
>


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