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Making a cyclone dust interceptor

Assembling from a kit.

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Alan T.26/01/2012 11:03:01
1033 forum posts
98 photos
Hi Guys, After the discussions on this subject on the forum last year I decided to purchase a cyclone kit from Cyclone Central. I ordered and paid for same in early December.After lots of delays and apologies for same, it was delivered earlier this week. There is a link to a video by Peter Parfitt making one which I found helpful. What you get for your £100 including P& P is : A 1/4 circle shaped piece of flexible plastic with a pear shaped cut out for the inlet pipe from which the cone is formed : A 50mm wide length of the same material machined in several places along its whole length to make it flexible enough to bend laterally and is used to join the seam of the cone: Top and bottom flanges in 12mm thick plastic machined as required to accept the cone: 2 X 8 ins long X 4ins diameter tubes; A bottle of super glue and an aerosol of accelerator: A tube of sealant come glue in a handy applicator. The really difficult part is the bending of the plastic shape to form the cone. Even when clamped under timber I found it almost impossible to fit the 2 sides together accurately. Bear in mind the adhesive is super glue with a 10 second set time. In the end I managed it but the ends were not perfectly square which led to difficulties in assembly. The top flange is accurately grooved to take the cone if it is perfectly circular and flat. It was neither. I filed away the small shoulder caused by myself and with help of some cursing and a 56 lb weight on top managed to position it well enough to apply adhesive/ sealant. Have to say that worked very well left for a few hours to set. At this point I made a replica of the smaller bottom flange to put inside the lid of the plastic dust container on which the cone is mounted. The bottom flange was not so difficult to attach. I then left it over night to set thoroughly . Next morning I used hot glue to fix and seal the inlet and output pipes. I had to use a drum sander to ease the hole in the top flange as it was too tight. no bolts or hose clips are supplied. Final assembly is simple. In operation it seems to work though the air flow is reduced somewhat. I forgot to mention there are no printed instructions at all,only the on line version. Don't think I would buy another. Moan over. Alan T
Alan T.26/01/2012 11:16:11
1033 forum posts
98 photos
Forgot to say there are two pics in my album. Alan T
Doug26/01/2012 13:05:20
3415 forum posts
35 photos
I`ve just look at your photos Alan, it doesn`t look very robust,how do you think it will stand up in use?
Another thought is how long will super glue last, my experience is that it can go brittle under certain circumstances.
Alan T.26/01/2012 19:08:24
1033 forum posts
98 photos
Hello Doug, I thought just the same thing, only time will tell. It does seem quite strong and rigid once assembled, and since it does not get moved at all no harm will come to it Thanks for looking Alan T..
Derek Lane26/01/2012 19:11:52
3219 forum posts
1004 photos
Keep looking at acyclone and wondered if one of those large road cones could be used
By the way good to see you back Doug
Johnf26/01/2012 22:11:24
23 forum posts
4 photos
I made one from a road cone seems to work ok
Ron Davis27/01/2012 19:26:11
1619 forum posts
201 photos
I'd keep quiet about the road cones if I were you, there soon wont be any left!
Alan T.27/01/2012 19:32:58
1033 forum posts
98 photos
Go for a road cone every time. Don,t know if you can buy them. Hot melt glue is fine and cheap. Top and bottom flanges in MDF and 2 feet of 4 inch dia plastic down pipe + 2 jubilee clips, and 6 nuts and bolts and away you go. Simples as the animal says.  Alan T.

Edited By Alan T. on 27/01/2012 19:36:55

Alan T.31/01/2012 14:11:29
1033 forum posts
98 photos
Hi Guys, I've had a PM from Peter Parfitt. who for one reason or another has not been able to post a reply here. He would like me to pass on that there is a new video on u tube describing how to make a pressure relief valve for a cyclone which is also available via the cyclone central website. Cheers Alan T.
New Brit Workshop31/01/2012 17:17:06
11 forum posts
It works!
Dear Alan and Members
First thank you for helping and being patient. I think that someone must have pressed some buttons to make things work as they should.
The assembly of the 100mm cyclone is a little tricky. I am quite arthritic and had to have several practice goes joining the cone sides before I had the courage to use the glue. I did recommend this in the video.
I think that the cyclone is reasonably robust but if anyone is worried then it would be easy to create a cage frame out of MDF secured to the drop box lid.
I too considered making a cyclone from a traffic cone but common sense kept me on the straight and narrow as I could not imagine what a client, visiting the workshop, would think. If anyone makes one that looks good enough to have on display to customers then please post a photograph.
I asked a friend to bring a Dust Deputy back from the US but it is no good with the planer or table saw. There was no way that a 100mm cyclone could have been bought this way and so I was stuck and the big cyclone was forgotten....until...
I received an email from Cyclone Central asking me to do a build/review video of their 100mm cyclone. I agreed but warned them that if I thought that it was rubbish then there would be no video. I was very pleasantly suprised when the kit arrived. It was well engineered and went together reasonably easily. I was even more delighted when I was told to keep the completed cyclone.
I have been using the cyclone for some time now and I love it. I have added a pressure relief valve and urge everyone to do the same. My trusty NVD 750 could crush a light steel cyclone so I did not want to take any chances. I have produced a video which can be found via my YouTube channel or from a link on the Cyclone Central web site. I mention the pressure relief valve in my review that will appear in The Woodworker soon.
Cyclone Central are a new UK start-up and they are filling a gap in the European market. I have made the two videos at no cost in order to help them along. I hope that it helps reduce the numbers on the dole. I am prepared to do the same for any UK company.
I hope this helps.
New Brit Workshop01/02/2012 07:58:23
11 forum posts
Sorry, I forgot to mention...
In the Cyclone Central instructions users are told to use the normal (single part) glue to reinforce all seams after the cyclone is assembled. If this is done then there is no worry about super glue failing.
Newbie_Neil01/02/2012 17:02:53
43 forum posts
Hi Peter,
I have had a number of dicussions, with myself, about the benefits/downside of using a cyclone.
How many hours would you estimate that you have had out of the cyclone? Would you be happy if you'd bought it yourself?
New Brit Workshop01/02/2012 18:04:11
11 forum posts
Dear Neil
I took delivery of the cyclone kit in the first week of December. Although it would only really take about 2 hours to make, I had photographs and video to take and so it was not in operation until about 9 December.

I use a large dustbin as my drop box and I have emptied it 7 or 8 times. Planing creates the most chippings and I have done a lot lately. I would have to guess at the number of hours of use - on some days I would do about 2 hours of planing but others may be just one.

Most people assume that cyclones cause a large drop in vacuum but this should not be the case. There will be a small drop due to extra friction and possibly a longer overall length of hose but if all the hose joints are tight and there is no leak in the join to the drop box this should not make any serious difference - unless you have a rubbish extractor!

I really cannot think of any 'down' side of having the Cyclone Central cyclone. Frankly for £90 it is very good value for money. I did think about making my own from scratch but it would have cost me a lost week which would be 10-15 times the cost of the cyclone kit. I used to have a 'dustbin lid' separator which I bought several years ago from a Devon based woodworking shop but it was never very satisfactory - I was forever having to empty my extractor which meant it did not do a very good job of separating.

If anything were to happen to this cyclone I would not hesitate to buy a kit from Cyclone Central. My brother, who runs a wood turning group, saw mine and is now buying several - and he will pay the normal price like everyone else.

Do take a look at the assembly video and make sure that you practice the joining of the cone several times before applying glue. You may need a second pair of hands.
The fit of the top tube into the cyclone lid is very tight - again see how I managed in the video. Also look at my pressure relief valve video and build one into your drop box lid.

Let me know how you get on.


Newbie_Neil02/02/2012 10:12:01
43 forum posts
Dear Peter,
Thank you for your excellent reply that has given me much food for thought.
Also, I will look at your videos again.
Many thanks,
New Brit Workshop02/02/2012 10:31:29
11 forum posts
Dear Neil
I have been a keen woodworker all of my life and have made some money from it. Now it is my turn to give something back and so I am delighted to help anyone that I can.
Do not hesitate to contact me if you need more help.

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