I recently made a better-than-the-last solution dust pickup for my lathe. I used star-type plastic knobs to quickly loosen and tighten the joints to the desired location, and made the inboard pieces out of a scrap piece of Environ, though any tight 3/4" plywood or hardwood would also suffice. I fastened a hardwood "T" onto the lip of the 4" PVC fitting that slides easily into the receptor T slots in both the inboard and outboard holders. Repositioning takes seconds and the range of positions is pretty unlimited. Works nicely though my collector could stand a size upgrade for more suction. Larger and more photos available if you're interested.
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