elson at pico-systems.com
Sat Oct 24 20:57:23 CDT 2015
On 10/24/2015 08:01 PM, geneb wrote:
> I wouldn't mind finding step-by-step instructions on how
> to refit a 2000 model year MaxNC 10 open loop mill. The
> controller it has now is parallel port based and the
> control software is DOS only.
Well, this is a stepper-driven machine? Are the stepper
drives in good condition, and are they good units?
Stepper drives have come a long way since 2000. Gecko
stepper drives are pretty amazing.
You can run stepper drivers from the parallel port, but the
performance may be less that optimum. I make a board that
generates steps in hardware that gives more accurate step
timing at higher speeds, and also allows closed-loop
operation if you fit encoders to the machine. This is all
supported by the LinuxCNC program, which is pretty
fantastic. I use it here in my shop to run a Bridgeport
mill with my own servo drives. I also have a desktop mill
that I built mostly for taking to shows that uses my
controllers and drives.
You can check out the LinuxCNC.org web site, and see what
others are doing in the retrofit area.
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