Cyclone dust extractor

  1. dazza

    dazza Member

    Messages:
    2,171
    Location:
    Barcelona
    Henry caught fire a few months ago so i'm bodging together a cyclone.

    I'm using an old expansion tank and a bucket.

    Just about to weld the top and side pipes :welder:.

    Should the top pipe go down below the level of the side pipe?
     
    steviec_lj likes this.
  2. frank horton

    frank horton V twins are great but 4"s rule.........

    Messages:
    971
    Location:
    manchester, UK
    Plenty of pictures on line and I'm sure utube will have the homemade sort being built....
     
    dazza likes this.
  3. ibrooks Member

    Messages:
    842
    UK Lancashire
    Yes or you won't get a cyclone action - it'll just draw stuff direct from the side pipe up the outlet.
     
    slim_boy_fat and dazza like this.
  4. KemppiFrog Member

    Messages:
    2,782
    Location:
    Aquitaine
    Actually it works OK with the suck just at the top. I use a converted plastic dustbin with 50mm PVC fixed to the lid.
    Have to admit to looking at a Veritas lid before I started:whistle:

    The cyclone effect is caused by the lower pressure in the tank pulling in the waste carring air at a tangent, so it centrifuges the waste to the edge and, out of the relatively narrow tube, it slows down and drops.
     
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