to trip as each motor is started then use those relay contacts to trip a
starter that controls your dust collector motor. I made such a system once
that also opened a damper (using solenoids) in the collector pipe for that
machine. We had to put a spring loaded dump valve near the collector to
keep the pipes from collapsing when the damper would slam shut as the
machine was turned off.
If the dust collector and the machine run on 110 and draw less than 15 amps
between them you can get such a device at Sears for about 30 bucks IIRC.
Otherwise it's basically just a relay that's energized when you turn on the
Reply to jclarke at ae tee tee global dot net
If you have 220, you can pick up a contactor and remote x-10 contact
switch on ebay for about 50-75 dollars. Thats what I use. I just carry
the clicker around with me. I turn the machines off and on while
setting them and I just leave the DC on. And then there vaccumming the
floor. I think this is much better than hard wiring. Think about
portable phones. IMHO.
I went even cheaper, and it works ok in my one-car garage shop. I put a
4-outlet box on the end of an extension cord. Two of the outlets are wired
through a switch at the end of a 10' piece of heavy duty extension cord.
Depending on the tool, either the DC or shopvac is plugged into the switched
outlet. The switch is mounted on a scrap piece of board, and I clamp it to
whatever tool I'm using.
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