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12th October 2019, 10:00 AM #16Senior Member
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- Aug 2002
- Location
- Williamstown, Melbourne
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- 486
Thanks everyone for your questions and advice.
I am guilty of going off topic a bit above (late Friday night postings!) There is heaps of great info on this forum already about cyclone designs, impeller sizing etc. I don’t want to repeat it all here.
The goal is to see what 6” cyclones skins are available if you don’t want to build your own. So far I only know of three:
Super dust deputy XL
ClearVue CV1800 (body only)
Hafco CDS-2/3
Any others I haven’t discovered yet?
(If I find any I will edit this post with new links)
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12th October 2019 10:00 AM # ADSGoogle Adsense Advertisement
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- Advertising world
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12th October 2019, 06:03 PM #17Member
- Join Date
- May 2007
- Location
- Auckland, New Zealand
- Posts
- 51
Hi, John.
The fibreglass cyclone you mentioned earlier does have a 6” inlet.
Cheers Tim
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12th October 2019, 09:47 PM #18Senior Member
- Join Date
- Aug 2002
- Location
- Williamstown, Melbourne
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- 486
Apologies Tim, I must have misread somewhere. For some reason I had in my head the inlet and outlet were 8”.
Did you ever end up selling and posting any to Australia?
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13th October 2019, 11:20 AM #19Member
- Join Date
- May 2007
- Location
- Auckland, New Zealand
- Posts
- 51
Hi John,
The inlet is 6” to suit the most efficient ducting size and the connection to the fan is 8” for cyclone efficiency. If it’s being connected to a smaller fan with a 6” inlet, either a 6” reducer is needed or better still a simple matter of making a new cover plate with an 8” stub which also significantly improves fan output.
i have shipped to Australia. Last time I think it was about $150.
Cheers, Tim
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13th October 2019, 02:58 PM #20
I bought the Hafco CDS 2/3 to mate with the 3hp Sherwood dc from timbercon, that was a mistake the Hafco cyclone choked the 3hp dc. I wasn't trusting my ability to make a cyclone But
I ended up using the bucket from hafco and made my own Bill Pentz cyclone.
20191013_143347.jpg
This is the half of hafco sitting behind the garage. I cut off the bottom ring so it's useless
20191013_143459.jpg
20191013_143514.jpg
Sorry for the sideway pics.
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13th October 2019, 03:52 PM #21Woodworking mechanic
- Join Date
- Jan 2014
- Location
- Sydney Upper North Shore
- Posts
- 4,470
Brilliant job!
What fan unit are you using on top of the cyclone - the Sherwood 3hp unit?
If so, hows it performing?
Cheers
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13th October 2019, 04:20 PM #22
I can tell it's better than the Hafco cyclone by look and feel
Bought this but it's not a proper equipment to measure
20191013_160208.jpg
Hafco W318 dust extractor.
I've just dangerously made a video of the cyclone sucking up mdf dust off the router table, left hand held the phone camera right hand fed the mdf over the cutter
Hoey
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13th October 2019, 05:13 PM #23Woodworking mechanic
- Join Date
- Jan 2014
- Location
- Sydney Upper North Shore
- Posts
- 4,470
Just reread the linked thread - thanks. I might download the excel spreadsheet and have a play. If you have a smartphone or tablet, I may have a way for you to measure the flow accurately.
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14th October 2019, 11:23 AM #24Senior Member
- Join Date
- Aug 2002
- Location
- Williamstown, Melbourne
- Posts
- 486
What does "choked" mean? Does it mean the air flowed faster than the cyclone could separate and too much dust came out the top?
How hard did you find making one was?
Did you have the pieces cut for you or did you just use tin snips?
Did you solder the joins or just use rivets/silicone?
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14th October 2019, 01:14 PM #25GOLD MEMBER
- Join Date
- May 2009
- Location
- melb
- Posts
- 1,125
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14th October 2019, 06:22 PM #26GOLD MEMBER
- Join Date
- Aug 2007
- Location
- Saskatoon, SK, Canada.
- Posts
- 1,439
If you are going to pop rivet the laps do it from the inside where ever you can. The heads have less drag than the upset end.
Pete
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14th October 2019, 07:16 PM #27Senior Member
- Join Date
- Jul 2008
- Location
- geelong
- Posts
- 359
The obvious way to save a $ is to DIY the designs are available and intuitive as well. sheet steel is cheap - some go for poly-carbonate so they can see flow and blockages. Pop riveter, silicon, a bit of effort and you done.
I have thought about replacing my top, filter bag with a duct outside the shed as it is mostly used for the planer/thicknesser - so not so much fine - airborne dust.
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14th October 2019, 07:57 PM #28
"choked" here means restrictions of airflow.
I used tin snips, angle cutter for cutting the sheets.
20191014_190619.jpg
I can't find the roll of lead but here are the soldering gear that I used.
20191014_190952.jpg
This jig was made up for holding the joint while soldering , 5mm bolts contacts to minimize the heat transfers or to stop the heatsink hope you know what I meant.
20191014_191149.jpg
I got no patience to learn to draw the transition of rectangular to circle so I made this up to mark/trace the sheet for cutting the transition
20191014_191821.jpg
Hoey
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15th October 2019, 02:12 AM #29SENIOR MEMBER
- Join Date
- Dec 2012
- Location
- Australia
- Posts
- 684
If you're in Adelaide I have one of aldav's similar to the dust deputy XL's sitting in my shed not getting used. Bought it and never used it. I think the inlet or outlet is 5" though not 6".
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15th October 2019, 07:16 AM #30Woodworking mechanic
- Join Date
- Jan 2014
- Location
- Sydney Upper North Shore
- Posts
- 4,470
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