Thread: Does anyone make DIY cyclones (other than Oneida Dust Deputy)?

Hi, John.

The fibreglass cyclone you mentioned earlier does have a 6” inlet.

Cheers Tim

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?

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

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.

Brilliant job!
What fan unit are you using on top of the cyclone - the Sherwood 3hp unit?

If so, hows it performing?

Cheers

Originally Posted by Lappa

What fan unit are you using on top of the cyclone - the Sherwood 3hp unit?

If so, hows it performing?


Cheers

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

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.

Originally Posted by Hoey

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.

What does "choked" mean? Does it mean the air flowed faster than the cyclone could separate and too much dust came out the top?

Originally Posted by Hoey

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.

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?

Originally Posted by John G

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?

I would like to know too. And also if anyone knows, how much disturbance it will be if the joins arnt great - ie overlap with silicon and rivets

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

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.

"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

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".

Originally Posted by Hoey

I can tell it's better than the Hafco cyclone by look and feel
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

I like it! With a BMH that would be awesome. I might try that and do away with the cabinet and fence connections and see if it’s as clean.