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Old Jul 29, 2004, 01:10 AM
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Joined Nov 2003
16 Posts
Any CNC mill control board design???

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,
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Old Jul 29, 2004, 02:11 AM
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KOEZE's Avatar
The Netherlands
Joined Feb 2004
22 Posts
I'm building this one with a few modifications.
http://magiist.free.eplanet.hu/_dwad...i/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
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Old Jul 29, 2004, 02:44 PM
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Sterling Heights, Michigan, United States
Joined Nov 2003
500 Posts
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/
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Last edited by kfong; Jul 30, 2004 at 07:24 AM.
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Old Sep 12, 2004, 09:15 PM
pjr
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Porto Alegre Salgado, Brazil
Joined Aug 2004
30 Posts
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 ..
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Old Sep 13, 2004, 11:52 AM
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thanks for the replys...

thanks for the replys...
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Old Sep 13, 2004, 05:49 PM
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Dan Baldwin's Avatar
United States, CA, Norwalk
Joined Apr 2004
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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
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