Hi Brian I have the the smaller saw the EX-16 (same circuit and motor just smaller). The machines they sell now come with a NVR which means you can use a footswitch to stop the machine but it won't start again until you reset the NVR which I suspect is not what you want. However there are ways round this I have bought a footswitch off Amazon when I get time am going to disappear into my workshop with a multi-meter a soldering iron and some heat-shrink and will figure out the best way to bypass the NVR. Basically all the FS does is switch the mains on and off or at least the live feed to the machine the trick is to do it after the NVR or somehow use the switch or the curcuit for the switch that turns the motor on post NVR will let you know how I get on.