O.K. ger21, I know that you know a lot about this stuff and can be trusted, so;
Do you really think F5 will severely damage my system and if so what do I do to stop that from happening?
I have the power supply that has the receptacle for a speed control that came with the spindle, can you suggest a wiring diagram
for safe, no smoke, operation of what I am attempting to do?
I can use all the help I can get. Thanks