Got tired of reaching around a spinning work piece to start, stop, and adjust lathe speed and built this pod out of crap in the junk box. Works with any VFD-S series motor controller, including those used on the Jet EVS, Powermatic, Delta, and any other which uses this series of controller. Just an idea to consider for those who might find the stock controls as annoying as I, as it's certainly not rocket science.
Five user defined speed presets allow quick selection of favorite speeds, and since the labels are Photochopped, they aren't necessarily representative of the final settings. The sixth selection enables the infinite variable speed potentiometer, which is actually a bit of a misnomer, since the granularity of the controller doesn't allow for "precise" speed selections.
2P6T. Since the controller's 10v source is limited to 10ma, the five
5k ohm linear taper potentiometer sources are switched as well as their wipers to limit current to 2ma, rather than the limit of 10ma. A
10uf electrolytic and 1k resistor dampen switching transients.
Greg G.