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Shop Vac Sucks Dust Out Of “Glass Blaster”
“I do a lot of blasting with glass beads for my business of making solid brass models of farm equipment. It’s like sand blasting but with glass,” says Andrew Sewell, North Yorkshire, England.
  “The beads shatter and make a lot of dust, which ends up airborne and goes everywhere. When the cabinet is pressurized, they blow out from every possible hole and you end up working in a cloud.
  “So I hooked up a shop vac to the side of the cabinet to turn it from positive to negative pressure and stop the leaks. I made a bleed valve so I can easily regulate the amount of vacuum in the chamber. If there’s too much, I can’t open the lid and it will pull the gloves off their mountings. I adjust the valve as I work because the filter in the vac gradually clogs up.
  “I made the valve from pieces of tubing with large holes cut in them. By turning the outer pipe I can open or close the holes to control the amount of vacuum.
  “This setup works well in my shop – but you do want to have the most quiet shop vac possible because you’re standing right next to it.”
  Contact: FARM SHOW Followup, Andrew Sewell, North Yorkshire, England (www.classic-combines.com).


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2016 - Volume #40, Issue #6