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13th June 2020, 08:44 PM #1.
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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.
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14th June 2020, 01:08 AM #2GOLD MEMBER
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Sounds like you need a dust hood over the trees to capture them at source.
Pete
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14th June 2020, 02:50 AM #3SENIOR MEMBER
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14th June 2020, 09:09 AM #4.
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14th June 2020, 09:35 AM #5
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
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14th June 2020, 09:56 AM #6.
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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.
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.
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