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Mods and Options for the Project: EVS Electric Vacuum System Quick Conversion to Continuous-Run That will by pass the switching ability of the vacuum controller so the pump runs non-stop. When engaged, the light switch will bypass the vacuum controller's switching and allow the electrical current into the system regardless of the vacuum pressure in the reservoirs. When disengaged, the system will return to auto-cycling on and off to maintain the pressure set by the vacuum controller. Why would you want this option? Cord Storage
Vacuum Clamping Vacuum Chucking What Are You Doing With Your Vacuum Press? Click here to see pictures of dozens of user-built vacuum press systems.
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Welcome
I've wanted to adapt the vacuum press system for vacuum clamping for quite some time. Of course it's not too difficult to hook the vacuum line from the system directly to a clamping board but I wanted something more durable and easier to use. The biggest restriction from making this adaptation a reality was the on/off control of the vacuum pressure to the clamping jig. I wanted to build something that could shut off the vacuum pressure without depleting the vacuum reservoirs. 
With a vacuum chuck, you can use the vacuum press to hold small bowls onto the lathe so you can finish up the bottoms without showing any machine markings. One nice thing about this add-on is that it allows you to easily monitor the vacuum pressure on the work piece. When the needle on the gauge is above 18" of Hg, you know that the project is ready to be turned. And with the vacuum valve and bleeder, it also allows you to pre-fit the work piece with light vacuum pressure so you can center the project on the jig easily without having to have an extra set of hands to control the vacuum source. So I spent a few weekends trying to figure out how to do it.
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