Martin,
That looks real familiar. I believe that to be one of the many conversions done
by Roland Friestad at Cardinal Engineering. Back in '88, that package went for
about $8500.
The high school, at which I taught, had one driven by an Apple IIe computer and
is now driven by a PC (DOS). AFAIK, it is still running. It is a 2 1/2 axis
machine and the controller (Cardinal) was an old RLL type. The controller had
its own processor to run the code. The computer was used to write the code and
to download/upload to/from the controller. The computer keyboard was able to
control the unit by pressing key combinations (no GUI). An E-stop switch had to
be connected to the fourth port on the front panel for anything to work.
With regard to the configuration of the Z-axis, Roland used that design so as
to retain manual operation of the machine, if desired. In its day, it was
pretty impressive in a school shop.
Craig
***
*Good Afternoon listers,
*I have posted a picture of my mini mill.
*The reason I wanted to do a conversion over to EMC was because the Centroid
*OS is very antiquated and when I saw what EMC would do, I knew it would make
*the mini mill more flexible.
*The Centroid OS has a very limited memory to about 250 lines on NC code and
*no buffer.
*And since I have a CAD CAM system updating the OS looked very doable.
*Thanks,
*Martin
***
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