I've been scheming lately on how to create my own 3'x4' vacuum table largely using AndyMacs plans, albeit slightly modified. The part that has me stumped is what would be the best way to create the switch that would turn the vacuum on and off.
I've considered a few things based on all comments on here. One would be some sort of foot-pedal (seen here: McMaster) or a hand-switch, possibly a mounted surge-protector. It seems like this would be the most convenient, but some people have raised the possibility that this may prematurely wear out the vacuum motor.
With that stress factor of constant ons-and-offs in mind, I thought about something like this that we have in our school printshop at MCAD – link, and detail here. The vacuum stays on constantly, and then you just move the lever whenever you want it to engage.
What am I missing? Are there any devices that I should look into? High volume production doesn't frequently happen, with most jobs being around 60 or so, and 250 on the high end if that changes anything.