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  • DIY: Cyclone Dust Separator From Two Buckets

    While a good cyclone separator works, it still has a cutoff particle size, therefore very fine particles can´t be catched by cyclonic action. Particles under 10 microns in diameter are NOT "filtered" by the nose and mucus, and go directly to the bottom of the lungs. A combination of a cyclone (to remove all large and medium sized particles) and a second very fine filter (usually called "HEPA" filter) is needed. While water operated vacuums are efficient, they usually don't meet HEPA efficiencies, but are very convenient for disposing of dirt and dust.As a fully developed DIY-selfer, I use automotive type pleated filters as a practical final stage filter on my bench tolos, plus an HEPA certified respirator, as I've seen very sad cases of respiratory illness and...see more »While a good cyclone separator works, it still has a cutoff particle size, therefore very fine particles can´t be catched by cyclonic action. Particles under 10 microns in diameter are NOT "filtered" by the nose and mucus, and go directly to the bottom of the lungs. A combination of a cyclone (to remove all large and medium sized particles) and a second very fine filter (usually called "HEPA" filter) is needed. While water operated vacuums are efficient, they usually don't meet HEPA efficiencies, but are very convenient for disposing of dirt and dust.As a fully developed DIY-selfer, I use automotive type pleated filters as a practical final stage filter on my bench tolos, plus an HEPA certified respirator, as I've seen very sad cases of respiratory illness and a couple of cancers in people that perform a lot of dust generating activities. Amclaussen.

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  • amclaussen commented on KronBjorn's instructable SaturnV Vacuum Rocket Launcher 5 months ago
    SaturnV Vacuum Rocket Launcher

    Nice Instructable. How about putting a lightweight cover that is held down by the vacuum, and then just blown away by the rocket. A simple way would be to seal the cover to the tuve with some thin grease. That could add some máximum height.

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  • amclaussen commented on atenea's instructable Repair of a Delta Belt Sander5 months ago
    Repair of a Delta Belt Sander

    Somebody can help me?Mine is a Sears 6" disc x 4" Belt sander that started to fail to keep the belt on the rollers: If I install the belt centered the rollers, it takes about 20 seconds for the belt to start "walking" towards either the front or the rear of the machine, regardless of the adjustement of the right side roller (if I turn the knob to one side, initially it tends to stop the belt running out of position, but makes it slowly start to go to the other side, so that I'm never able to keep it running centered. This problem was not present when the sander was new, and it behaved OK for three years, and then started acting. Any suggestions? Amclaussen (amarquezclaussen at Hotmail.com)

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