On Wednesday 24 February 2010, Dave Engvall wrote:
>> Hi all,
>
>Pete just sent me this:
>
>"
>Here is a short description of my EDM software:
> The software is written in Basic; I run it under linux in single-user
> mode. It issues step and direction signals via parport data pins 1-8 for 1
> to 4 axis motion along a pre-programmed path. That motion is entirely
> controlled by signals received from a [erosion gap] voltage comparator
> that announces via status pins 13 & 15 whether the electrode is too close
> or too far from the surface being eroded. If too_close = false AND
> too_far = false, then the electrode sits motionless eroding away the
> workpiece. If too_close = true, then it checks twice more and if still
> true, then it backs out. Back-outs occur along the programmed path or
> toward pre-programmed escape points. They occur at timed intervals or as
> a function of the too_close flag becoming true. If the fault does not
> clear the program will back up all the way to the first point in the file.
> The usual jog, axis reset and other functions are included.
>
> Attached are two pictues of combined axis work. I'll leave it to you
> to drill down the pix if you think there is a reason to send them to
> anybody. The first is threading a hole in a file, using Z & C axes. The
> second is "rolling" a die over an electrode that was milled flat, using X
> & C axes. In the latter case, backing out for flushing was done in the +Y
> direction, Not by rolling the die back across the face of the electrode.
> The EDM used to make the parts shown is a simple RC type. The software
> would be identical for pulse type. "
>
>
>Pete also sent pictures/diagrams, if anyone is interested I can email
> directly or post on imagebin.
>
>Dave
>
A post on imagebin would be nice, Dave. Thanks.
--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Mal: "Half of writing history is hiding the truth."
--"Serenity"
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
_______________________________________________
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
