I did exactly what you want to do, Here's how.
First off, most of my tools are 110 vac, but this really doesn't matter. For your 110 vac tools, you can get at Sears a remote switch where the tool plugs into a main out and the DC would plug into an accessory out. I made a relay box as described below. At this point you can use a 110 vac relay in the relay box. Using a DPDT relay you can make the output in the box 220 vac for the DC.
For your 220 vac tools, run them to a 220 vac relay. You won't have the added run time unless you place a capacitor across the coil for the time delay.
Mine works so well, all I do is open the blast gate and turn on the tool. The automatic switch is located at the wall where a 6=way power strip is plugged into it. I plug my tools into the power strip and hook up the dc lines. With some tools like my bandsaw, it has it's very own switch which will turn on a work light and a return line to the relay box turns on the DC.
-- Woody
Check out my Web Page at:
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you will find:
******** How My Shop Works
******** 5-21-03
- * * Build a DC Separator Can Lid. 1-14-03
- * * DC Relay Box Building Plans. 1-14-03
- * * The Bad Air Your Breath Everyday.1-14-03
- * * What is a Real Woodworker? 2-8-03
- * * Murphy's Woodworking Definitions. 2-8-03
- * * Murphy's Woodworking Laws. 4-6-03
- * * What is the true meaning of life? 1-14-03
- * * Woodworker Shop Signs. 2-8-03