Electronics for woodpeckers...
Finally got the time to make a few of these... updated to have 3 settings, Auto, ON and Off.
During Auto, vacuum turns on when power tool is switched on...
With the switch at Off, vacuum is cut off even when power tool is switched On.
When the switch is set to the On position, vacuum turns On regardless of the power tool state.
Already sold a couple to offline friends, one was modified for a machine shop and is used with a pump instead of a vacuum to intermittently pump lubricant.
Cheers