Thread: Cyclones Again

ou will end up with an assembly 3m or so tall though.

If ever I actually get around to the cyclone end of the system, I have thought of using the standard hoop, filter and bag, on a higher frame and connected by the existing piece of flexiduct. If that makes sense, it means that the filter can be not much higher than it is now, but I am not sure about the effect on the system.

There is so much conflicting technical data around that I have decided to ignore it all anyway!

I have a Jet DC1200, and have almost installed 6" ducting to all equipment, when finished I will have about a metre of 4" flex to each machine. If that all works (and I have no doubt it will), I'll see about the cyclone, but am inclined to think that will be close to the limit of the DC.

BTW I am thinking of building the cyclone of bendy-ply, epoxied inside and out...because
a) I can
b) Like many others I am not much chop with metal
c) I am a perverse so & so and have been told it won't work!
d) One upmanship!!!

Dont' worry, it will be at least another year till it happens so there's plenty of time to fire the missiles!

Cheers,

P

Soundman
A structure 3 metres tall is probably too big for most sheds therefore the answer would be to locate the cyclone outside the shed, probably in a tall, roofed enclosure to offer some protection from the elements. If such is the case the upper section of the enclosure could be louvred panels to permit good airflow. Now if your cyclone is located outside the shed, and given that it is non-industrial, why bother with two-micron bags or filters? Use a standard 30 micron bag and let the breeze do its job!

Gregory Machinery had a functional ‘Jet’ cyclone unit at the Brisbane WWW show. Probably not cheap but I would rate it at the lower end of the industrial market or top end of the home market. The unit used a cloth bag for filtration and stood about 2.5 metres tall. It was very quiet.
Bitingmidge
I read a recent article where the writer had constructed his ducts using plywood box sections. Plywood should work okay if it is well sealed. Probably use the stitch-and-glue method popular with small boat builders. The aerodynamic shape would be important, not the surface as we are dealing with relatively slow moving airstreams (4,000 feet per minute maximum). Plywood would probably kill any static electricity problems!

Soundman:
The best option for filters is the pleated cartrigde filters sold for the standsrd dust extractors. The filters mentioned on bills site are available in this country but are tooooooooo expensive

The jet 2 micron are the cheapest.


Old truck filters cost nothing from a truck service center - they're happy to get rid of them! The ones I'm going to use are each rated at 900 cfm, and <1 micron. By putting two together you reduce the static back pressure. The best part is the price And if you're close to neighbours I'm sure they'll be happy that you're not spewing the stuff you are not prepared to breathe yourself into their vicinity by venting the air outside

if you can get onto used truck filters. hey great.

just dont bother trying to buy them new....the cost....