I made this quick, off the cuff, video to show how to connect the Mach3 USB RNRMotion controller to the VFD for a spindle to control the spindle speed (RPM).

My favorite tools:
Wera micro screwdrivers: https://amzn.to/3qEhynB'>https://amzn.to/3qEhynB
WorkPro Ratcheting Screwdriver (You see me using this in many of my newer videos): https://amzn.to/3qEQYLg'>https://amzn.to/3qEQYLg
Knipex Cobra Water Pump Pliers (these are so versatile): https://amzn.to/34fIwur'>https://amzn.to/34fIwur
Knipex Wrench Pliers (The most elegant tool I have seen and use constantly): https://amzn.to/3HyzNlv'>https://amzn.to/3HyzNlv

Get the MAach3 USB Controller here:
https://www.buildyourcnc.com/item/ele...


Visit the BuildYourCNC.com website
https://www.buildyourcnc.com/

I upload to Instagram very frequently and add great informative content as well as customer test videos. Make sure to follow me on Instagram at:
  / buildyourcnc_newbiehack  

Electronics Test Equipment:
OWON 100MHz 2 channel digital oscilloscope (better than mine, but I probably paid more for mine): https://amzn.to/3zfq1lg
Autoranging Multimeter (an indispensable tool for electronics): https://amzn.to/3FMCr6B
Logic Analyzers:
16 Channel 400 MHz: https://amzn.to/3JCOOVg
32 Channel 1 GHz: https://amzn.to/3JB8CrI
Inexpensive but highly rated Chinese version 16 channels 100 MHz: https://amzn.to/3EYpMMN

My favorite tools:
Wera micro screwdrivers: https://amzn.to/3qEhynB'>https://amzn.to/3qEhynB
WorkPro Ratcheting Screwdriver (You see me using this in many of my newer videos): https://amzn.to/3qEQYLg'>https://amzn.to/3qEQYLg
Knipex Cobra Water Pump Pliers (these are so versatile): https://amzn.to/34fIwur'>https://amzn.to/34fIwur
Knipex Wrench Pliers (The most elegant tool I have seen and use constantly): https://amzn.to/3HyzNlv'>https://amzn.to/3HyzNlv