OK, I know this is flatwork (and quick and dirty flatwork to boot), but it was done solely in the interest of turning, so I'm posting it here.
This is what I did for the vacuum rig in my new "everything is mobile" shop. I started with the "constant run" hardware kit from Veneer Supplies, and with the exception of a bit of tubing and hardware, it was all made from stuff I had laying around.
When it's upright, it's sitting on four rubber feet. Tilt it back a little ways, and it's mobile on the two wheels like a dolly. I ended up using a honkin' big 4-prong twist-lock plug for the power. I was having trouble finding 220v rated 3-prong locking plugs and receptacles, but I found a decent price on the 4-prongers, so I bought enough for my initial 220v needs. (Some of my 220v outlets will be in the ceiling, so I decided to make everything twist-lock.) It's overkill, but it cost me a bit less money, and I don't think it'll cause a problem.
The motor cover is intended to keep most of the dust and chips out of the pump, but it's held on with screws so it's easily removable.
I piped the air and power on the back so the cover wouldn't have to work around the tubing. The conduit is overkill, but I had a piece laying around, so I used it. The exhaust is also piped outside the box to keep the heat down. I'll watch things when I start using it, and if if the pump gets hot I'll enlarge the front opening to allow more airflow. (On the other hand, I may close it up more to cut back the noise a little if the external exhaust keeps things cool enough.)
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I ended up with two different filters -- one that came with the Veneer Supplies parts kit and another I ordered from Surplus Center. I decided to use both of them, for no other reason than I had them available. The big one should catch anything that comes down the hose and the smaller one should catch any dust that might get in through the breather valve (unlikely).
Hopefully in a week or so I'll finally be able to fire this thing up (and the new lathe, too). Dang electricians and their power trips.