Clyone form a traffic cone

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Project by JeanCLaude posted 04-22-2013 07:18 AM 5275 views 9 times favorited 9 comments Add to Favorites Watch

Hi There,

my name is Jean. I study mechanical engineering & management in Munich. After I finished my Bachelor Thesis about particle seperation, I decided to build a cyclone for my vac and explain a few details for you guys ‘in the internet’.

The drawing (in millimeters of course – this is german engineering)

Here are some Infos, that I found were very helpful:

The Inlet should be flat and the pipe should not project inside. The inside should be smooth and contiuous (no corners or steps in the diameter)

The pressure in the middle of the cylone is lower than at the wall. This causes a suction effect, that will suck off dust from the reservoir below, that has already been separated.

To block that ‘suction tube’, you should insert a plate like this:

This will allow to dust to go down at the side, but blocks the middle, where it wants to come up. Do not

All the rest is two pieces of PP-waterpipe, a bin as a reservoir and a bit of epoxy.

I quaranty best results!

Any questions? Let me know!

All the best from Germany,


9 comments so far

View Wimpi's profile


8 posts in 2769 days

#1 posted 04-22-2013 07:52 AM

Hello Jean,

Nice twist in the cyclone principle to use a traffic cone.

LJ’s, do not cause a traffic disaster….;)

-- The longest distance to be seen between two objects, is the shortest

View Lanaug's profile


188 posts in 2722 days

#2 posted 04-22-2013 12:43 PM

Nice posting and pictures, simple enough to understand. Thanks.


View Sandy's profile


227 posts in 4438 days

#3 posted 04-22-2013 12:48 PM

My wife just asked me why I was laughing. I explained that I was reading about a totally new way to make a cyclone dust collector which reminded me of the flashing yellow light that I had “liberated” from a Boston street so it could adorn my room in my fraternity. I’m now guessing that traffic cones close to LJ members are going to start becoming scarce. Good idea, though.

View drbyte's profile


834 posts in 4576 days

#4 posted 04-22-2013 01:25 PM

Great idea! But the cones are really cheap to purchase so ‘liberating’ would not be worth the consequences if caught! Only about 8-10 USD depending on size! Here’s a HomeDepot link: for an 18” and even cheaper on Amazon!

-- Dennis, WV

View elhaji3's profile


11 posts in 3036 days

#5 posted 04-22-2013 09:14 PM

View Bill_N's profile


235 posts in 2792 days

#6 posted 04-22-2013 10:50 PM


ve gates

I am glad you posted this
I am getting ready to make one

-- I have the Saw Dust Fever

View JeanCLaude's profile


6 posts in 2376 days

#7 posted 04-23-2013 05:37 PM

Thank you for your feedback.

Elhaji, what have you used to glue the inlet pipe to the cone?
PP, PE and epoxy what I used, isnt the best solution. I rekon this is the weakest part of this construction.

Does anybody have an idea how to make it better?

View waho6o9's profile


8771 posts in 3090 days

#8 posted 04-23-2013 05:42 PM

This to that might be helpful in the adhesive aspect of the project.

Welcome to LJ’s JeanClaude!

View ldl's profile


1135 posts in 2879 days

#9 posted 07-14-2013 06:17 PM

I would bore a hole in a block of wood to recieve the inlet pipe and then take bandsaw and cut the angle needed to glue the block to the cone. This would reinforce the joint and alleviate the need to cut the inlet pipe on an angle.

-- Dewayne in Bainbridge, Ga. - - No one can make you mad. Only you decide when you get mad - -

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