![]() Presumably you’ll be using this to control THC operation (enable/disable) and it’s operating parameters? GREAT FIND! If I had only known… Looks like an easy and effective way to expand Mach 3’s control of the system. Wow! It’s revelation to me that Mach 3 supports ModBus as a means to control devices. Shilling Systems Mach3 Modbus to Arduino Tutorial: I’ve worked and learned so hard to get this far and its been a ton of fun learning all this. Need to probably hook up some transistors for the stepper signals to the Arduino and figure out the THC circuitry on the Arduino shield next. This wiring diagram is still a work in progress. And then some circuits design to handle that + the voltage signal from the plasma. ![]() Slightly harder is to sniff X and Y with the Arduino. ![]() Next immediate steps are to feed the Z-stepper signal through the Arduino, which should be easy. It could just as easily work as a standalone unit like the Robot3 and you wouldn’t need to worry about Mach3. I’m going use the Arduino for the THC, and setup a Modbus serial connection from Mach3 to Arduino to adjust the THC parameters from Mach3. ![]() I’ve been looking for motivation to get better at Arduino, and this is it. I’ve also decided to do it the hardest way possible. I’ve decided it’s time to add THC to my Crossfire. ![]()
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