hi lee , today i got the solenoids sorted i used the trigger output function of uccnc to control the solenoids the way i want them , i have 2 in line one is controlled by the button on the spindle the other is connected to an output through a relay and is disabled when the spindle starts using the trigger output function " i have been informed that i could have connected the solenoid to the output without the use of a relay as the breakout board outputs 24v, " the third solenoid i have setup to be active while the spindle is running , for the air seal , hopefully i have got it correct time will tell. i now have to tidy up the wiring in the cabinet and tram the spindle and get back up and running.