advice for who's plans to follow for cnc controllers?

Thread Starter


Joined Jan 6, 2013
I guess the title is self explanatory, but a bit of background should help my cause. I plan on building something similar to Tom McGuire's.

I like his design but am looking for suggestions. I'm somewhat new to electronics but have completed the Mims books and can understand and breadboard schematics with a pretty good success rate. I cannot and do not have the means to do toner transfer at this time and don't plan on using it for this project . After I breadboard it, it will be transferred directly to R.S. perforated boards. I'll be running this contraption with EMC2 Linux.

*Any dummy proof suggestions as to a super simple motor controller I can build? Break out board as well? ...Or is this my golden ticket?

I realize this is probably a common question but I'm still kind of 'rock stick fire' here and haven't found much on the web. Electronics isn't my main hobby. I just want the machine for small foundry patterns and PCB fabrication (some day).

Thanks in advance!



Joined Oct 15, 2009
Not a diy controller but I'm really impressed with TinyG and just finished up a CNC based assembly machine at work using it.

best part is you DON'T need EMC2 or a "somewhat" powerful computer and no worries about latency issues.
There is just a TinyG App for Android tablets that works great or their TgFx software for a laptop/computer.

spend your time/money on making the mechanical aspects of the machine all rigid/smooth and just buy the controller.

You just need TinyG board, stepper motors and a 24V DC power supply capable of supplying the required current for your steppers. (24V @10A is plenty usually and cheap)