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Thread: Blast Gate

  1. #1
    Join Date
    May 2011
    Location
    ny
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    776

    Default Blast Gate

    A simple blast gate I made up for my dust collection system The gate slide has sandblasting mask on the suction side so it seals really well when closed.








  2. #2
    Join Date
    Jul 2010
    Location
    Wyoming, Illinois.
    Posts
    58

    Default

    Nicely done!

  3. #3
    Join Date
    Jun 2012
    Location
    Ohio
    Posts
    543

    Default

    Very nice.
    I need a new blast gate, I melted one with my patio heater. It only melted a little, but it still wasn't my most shining moment.

  4. #4
    Join Date
    Feb 2013
    Location
    River Fall WI
    Posts
    764

    Default

    What is the white part on it for?
    Kyle Stapleton
    River Falls Renaissance Academy
    Math/Technology Education Teacher


    PRS Alpha 96x60 2.2 hp spindle, Double Air drills, 6" indexer, Fein 5 zone vac table
    Desktop w/spindle
    Potter Pen
    Aspire 8.5, Creo 3.0

  5. #5
    Join Date
    May 2011
    Location
    ny
    Posts
    776

    Default

    Kyle, The white on the gate is sandblasting mask its a thin rubber sheet with adhesive on one side it creates a gasket seal when closed, as more tools got added to my system leakage becomes an issue especially with my planer.

    This gate seals far better than any sheet metal or plastic gate I have previously used.

  6. #6
    Join Date
    Jun 2012
    Location
    Ohio
    Posts
    543

    Default

    Brian, I think Kyle meant the white tab behind the stick, screwed on the end of the blast gate. Looks kind of like a flag or indicator tab?

  7. #7
    Join Date
    May 2011
    Location
    ny
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    776

    Default

    Quote Originally Posted by shilala View Post
    Brian, I think Kyle meant the white tab behind the stick, screwed on the end of the blast gate. Looks kind of like a flag or indicator tab?
    Thats a latch so it does not get sucked closed.

  8. #8
    Join Date
    Jun 2011
    Location
    Melbourne, Australia
    Posts
    1,008

    Default

    Brian it is good particularly the mask seal idea (brilliant!) but it is not self clearing. You could have a bash at putting a big hole in the blade and letting it exit out the currently sealed end when closed??? I rather like some experiments Gary did years ago using motorhome Valterra sewerage valves but these dont self clear either but they do have a seal each side and they are under ten bucks. Have you tried a helix head on the planer to make the shavings more easily suckable? Made a huge difference for us.

    http://youtu.be/iXJhTz-Jc7c
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    Buddy BT48 with 6' power stick
    2.2 HSD Spindle
    Aspire 9.5
    6" ShopBot Indexer

  9. #9
    Join Date
    Mar 2004
    Location
    Delray Beach, FL
    Posts
    3,708

    Default

    If you have a supplier of Valterra 2" Valves in the US for under 10 bucks I want to know them!!

  10. #10
    Join Date
    May 2011
    Location
    ny
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    776

    Default

    Bob I was not sure when I designed the gate if the mask would seal enough to go with that type of design, so far the gates have not had clearance issues when closed.

    I do not use a helix head, a lot of the material I use is milled by me on private property and all kinds of interesting things can be found in my slabs its cheaper to resharpen or replace blades than a dozen inserts.

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