Homebrew PCBs

linuxcnc outputs step/dir directly and is configurable and needs no signal
conditioning before a l293/97 etc. conditioning or coding is only necessary
for microprocessors. i have three sla7086 printer stepper setting on my
bench now that run just fine

On Fri, Jun 22, 2012 at 7:36 AM, Tony Smith <ajsmith1968@...> 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.
>
> Well, what I meant was there will be some electronics before the stepper
> drivers (293 etc), that converts the HPGL (or whatever) to Step &
> Direction.
> Some use weird driver chips simply replacing the lot is easier than
> figuring
> it out.
>
> You can't just plug it in as it and expect it to work.
>
> Tony
>
>  
>



-- 
jeremy youngs


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