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Thread: Fibreglass Cyclone Mark 2
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6th August 2014, 12:30 PM #1Member
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Fibreglass Cyclone Mark 2
People may recall my original post for the fibreglasscyclone project. Based on the feedback received and some other enquiries, I’veset out on a mission to produce a similar thing for others.
There are three main differences from the prototype. The first is thelevel of finish. The original was produced in a number of pieces around a maleformer and stitched together which gave it an ugly external finish and theglued seams are a possible point of weakness. This version is produced in afemale mould without seams, making it more robust and giving it a much betterfinish. The other main difference are that is produced in two pieces to allowfor the female molding and to allow the two piece to be nested, considerably reducingthe shipping volume. Finally, it has a right hand entry to suit the rotation ofthe majority of fans around.
I see the main use for this is for people who want to improve on thestandard filter bag dusty by ditching the bags and using the fan and cycloneand exhausting directly outside. The cyclone feed is 160 dia to suit standardPVC pipe ducting and the fan inlet size is 200 dia which is necessary to getthe best fan performance. The cone chip outlet is also 200 dia and the overallsize is around 1300mm high by 470mm diameter.
I’ve been running my original for over a year on a 2HP fan which givesabout 800 CFM for the fan and cyclone only and about 600CFM when running throughmy machines. Theoretically this is marginal performance but works very well inmy very small shop. A 3Hp fan would probably be a better starting point for theaverage user.
If anyone is interested, can produce these for about AUD$600 and reckonIt can be shipped for about another AUD$150 excluding any local taxes, dutiesetc.
Apologies if I’m breaking any forum rules for this post.
Regards, Tim
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7th August 2014, 06:04 PM #2GOLD MEMBER
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Tim you have done a nice job on the cyclone. Does your unit build up any static when operating? Your price, assuming it is in NZ dollars, is about same price as I would pay for the equivalent cyclone only from Clear Vue over here before shipping.
Pete
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8th August 2014, 09:29 AM #3Member
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Hi Pete,
I can’t say that I have noticed any static buildup when using my cyclone. I’ve been using it for about a year now but it didn’t get a lot of use at the height of last summer when it would have been most noticeable. I also wonder how much charge can build up when it’s connected at either end to metallic machines which are continually earthed.
The prices above are in Aussie dollars as this is where I guess most of my sales might go. For a local purchaser, I think it compares favorably to the alternative which I believe retails for about a grand excluding local delivery.
Incidentally this is a good example of how much international freight plus our small market conspires towards making tools so expensive in Australia and especially New Zealand. I can’t help having a laugh at the irony of someone from North America baulking at the cost of a product heading in the other direction !
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8th August 2014, 11:01 AM #4
Hi Tim
Your fibreglassing skills are looking very good ,This from someone who work in the industry for many years.
It look as if you are try to make a go of you cyclones... and good on you for that.
As someone who just went through the experience of getting a DE system and ending up with a clearveiw one.
What you need is to flat pack it this will chop down the shipping cost...a real killer.
You need to make it straight forward to assemble not necessarily simple but logical to do.
If you have any more interest in going down this path I willing to throw some time your way as a devil's advocate to help you..bit far away to be hands on.
All the best
Russellvapourforge.com
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8th August 2014, 11:41 AM #5
Triffic !! Darn site nicer than the glass work we used to do on canoes and paddles and wotnot.
Was the glass a nice weave ? Or random mat !
Also, hoe did you manage to get the edges of the chute so clean ?Glenn Visca
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8th August 2014, 11:56 AM #6.
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Fibreglass job looks great!
One thing I would have liked to have seen is a ramped intake.
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8th August 2014, 03:16 PM #7GOLD MEMBER
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Bob, I have a bit of an idea of what a ramped intake may look like, or act like, but I wasn't too sure.
I googled "ramped intake" and received a plethora of stuff totally unrelated to what I was searching for.
Any chance of a slight explanation of what you were thinking of here?
Mick.
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8th August 2014, 08:14 PM #8Member
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Glenn,
The glass I've used is a fantastic cloth called double bias which is two layers of unwoven rovings oriented at +- 45 degrees to the direction to the roll. These are then held together with rows of light stitching running parallel to length of roll. The end result is a very strong and stiff and easy to drape and form. Not knowing any better, for my prototype I used the old fashioned chop strand mat which is a nightmare to shape and wet out and results in a much weaker, resin rich matrix.
The cyclone shell is produced inside a female mould which results in the better mould face being on the external face.
Cheers, Tim
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8th August 2014, 08:34 PM #9Member
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Bob,
Thanks for your kind words.
If you have another look, you will see that it does have a ramped intake. Instead of having a flat top with a separate ramp sitting below this like other cyclones, I have discarded the wasted surface and volume between the flat top and ramp leaving a 360 degree helical top which is also the ramp.
The end result is the same with a helical surface deflecting the first revolution of dust laden air below the level of intake.
Regards, Tim
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