Results 1 to 6 of 6
  1. #1
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,756

    Default A use for 90mm stormwater pipe in workshop dust control

    90mm stormwater is a near useless duct size for wood dust. It's too small for most machines so it doesn't carry enough air to handle fine dust. It also does not play all that well with DWV pipe sizes.

    However, it looks like I found a really good use for it.

    We have bunch of Chinese tallow trees in the back yard and they have just about finished dropping all their leaves for the year so they are like a carpet over the back lawn meaning dogs and I constantly track them into the shed or the wind blows them in. I usually sweep them up or use a length of 100mm flex (attached to the TS OH Guard via a separate gate to the guard) as a vac line but as anyone that knows trying to vac with a length of loose flex is a PITA as it constantly flops around and wants to sucker itself to the floor or said objects being vacced.

    The other time I need to clean up stuff off the floor is when rough turning and big chips fly off in all directions.

    I played around with a 1m length of 100mm DWV duct attached to the flex but it's a tad heavy to wield easily. I just so happened to have a few metres of 90 mm stormwater ducting out the back of the shed so I cut off a 1m length to use as a dust wand. Then had the problem of mating the two. I was in Bunnings this arvo and spied a rubber $10 90-100 adapter.

    Added an Ally handle and . . . . . .Whalla.
    The IDs of the adapter fits the 90mm stormwater and flex perfectly

    Dutwandp1.jpg

    Dutwandp2.jpg
    Although its light I found the handle helps a fair bit, and while there's less flow than the 100mm DWV ducting, the air speed is a touch faster so it picks up the big chips and leaves really well.

  2. # ADS
    Google Adsense Advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many





     
  3. #2
    Join Date
    Aug 2007
    Location
    Saskatoon, SK, Canada.
    Posts
    1,436

    Default

    Sounds like you need a dust hood over the trees to capture them at source.

    Pete

  4. #3
    Join Date
    Oct 2009
    Location
    South Africa
    Posts
    950

    Default

    Quote Originally Posted by QC Inspector View Post
    Sounds like you need a dust hood over the trees to capture them at source.

    Pete
    That and more cfm.

  5. #4
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,756

    Default

    Quote Originally Posted by QC Inspector View Post
    Sounds like you need a dust hood over the trees to capture them at source.

    Pete
    That would certainly help the gutters and downpipes which have after 25 years finally rusted out - just had some people around to quote on replacements.

  6. #5
    Mobyturns's Avatar
    Mobyturns is offline In An Instant Your Life Can Change Forever
    Join Date
    Jul 2012
    Location
    "Brownsville" Nth QLD
    Age
    66
    Posts
    4,413

    Default

    I used 90 mm storm water to make a custom replacement transition from the dust shroud on my Woodfast TS250 table saw after the original unit failed. Very easy to reshape / mould with a standard heat gun. Quite a few years back I also trialed some custom attachments to suit a Ryobi corded blower / vac to clean the gutters of Moreton Bay ash leaves from the guttering on my Mums house. Quickly realized that tangled long thin leaves don't suck up all that well!

    Have you considered angling the shaft and flaring out the inlet to more of a oval / elliptical shape? Similar to the blower /vacs on the market.
    Mobyturns

    In An Instant Your Life CanChange Forever

  7. #6
    Join Date
    Feb 2006
    Location
    Perth
    Posts
    27,756

    Default

    Quote Originally Posted by Mobyturns View Post
    I used 90 mm storm water to make a custom replacement transition from the dust shroud on my Woodfast TS250 table saw after the original unit failed. Very easy to reshape / mould with a standard heat gun. Quite a few years back I also trialed some custom attachments to suit a Ryobi corded blower / vac to clean the gutters of Moreton Bay ash leaves from the guttering on my Mums house. Quickly realized that tangled long thin leaves don't suck up all that well!
    Have you considered angling the shaft and flaring out the inlet to more of a oval / elliptical shape? Similar to the blower /vacs on the market.
    Flaring would slightly improve the total air flow but lower the air speed which would mean having to get the tube closer to chips to pick them up.

    The oval elliptical shape on those units appear to be designed to complement the flattened impellers designed to minimize bulk. I doubt it matters on the end of a length of flexy connected to DC.

Similar Threads

  1. 90mm PVC pipe for dust extractor
    By man from uncle in forum DUST EXTRACTION
    Replies: 8
    Last Post: 3rd February 2020, 09:12 AM
  2. Connecting two 90mm tank overflows into 100mm stormwater
    By Bags in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etc
    Replies: 2
    Last Post: 15th April 2008, 08:29 PM
  3. Joining into existing 90mm PVC pipe
    By Theremin in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etc
    Replies: 12
    Last Post: 29th July 2007, 10:26 PM
  4. Stormwater - 90mm v 65mm
    By gsouth in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etc
    Replies: 6
    Last Post: 2nd May 2007, 10:55 PM
  5. Connecting Ag pipe to 90mm Stormwater
    By VegasDave in forum PLUMBING, ELECTRICAL, HEATING, COOLING, etc
    Replies: 8
    Last Post: 8th May 2005, 08:54 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •