Any CNC mill control board design???

[yshimoni]

My next project is a CNC mill.
Since I can make some simple double-sided PCBs I`m looking for a 3-4 axis CNC control board schematics/design.
The control board looks simple, charging $100-$399 for it looks a bit high for me…
Thanks,

[KOEZE]

I'm building this one with a few modifications.
http://magiist.free.eplanet.hu/_dwad_/frameset.php?path=http://magiist.free.eplanet.hu/CNC/VezerloProfi/ProfiEng.htm

Modifications are mainly seperating the output stage (expensive) from the controller stage so that I can also use it with my expiriments with controlling my mill serially (very fast because you send commands to the pic that translates these into the required PWM signals instead of letting the pc do that and having the LPT port as a bottleneck)

Check out www.luberth.com/cstep and click the link on the top left corner for more info and some videos

EJK

[kfong]

Try this instead, schematics are online and the boards are a proven design.

http://www.embeddedtronics.com/microstep.html
Works with any software that provides step and direction control. Will need one board per axis. There is also a breakout board that works with EMC and other CNC software that can reconfigure i/o pins.

Kin Fong

http://www.embeddedtronics.com/

[pjr]

try this link .. http://www.cenece.com/

this board have 4 axys and its very easy to build ...it also could be used with a lot of comercial softwares ..

[yshimoni]

thanks for the replys...

[Dan Baldwin]

I built a small CNC mill using stepper motors about 15 years ago that looked exactly like the one in KOEZE's post. www.luberth.com/cstep I used the parallel port of a PC with opto isolators driving a CD4052 on each axis as a 2 line to 4 line decoder. The 4052 turned on one FET at a time to drive the axis. That way it only took 6 of the 8 bits available on 1 port to drive all 3 axes. I used light bulbs to limit the current on the steppers from a 24 volt power supply, so I didn't need a PWM on the stepper drivers. Did you want to use stepper motors, or DC motors for your machine?

Dan