Cyclone dust separators for woodwork

These do 50 mm bore, £29 for five metres. Couplers available from similar sources, but usually rigid plastic. Probably a bit more robust than you want.

You can get a 2 inch hose for the basic Earlex wet & dry workshop vac.

Thanks for posting some interesting links. A while ago I messed around with an adapted Dyson cyclone but it wasn't very successful so now I just use an old un-mod'd Dyson for some machines and a pukka extractor for the planer/thicknesser. One thing I've found is that corrugations make a big difference to airflow, so use smooth-bore pipe wherever possible (and don't forget about static).

I've been on the verge of ditching a leaf vac so seeing the guy use one with a cyclone has got me thinking about mating it with a traffic cone, the question would be how to filter the outlet.

Maybe buying a premade 2" hose will be cheaper .. I'll look on eBay

Not tried those, but have made cyclones in the past. Its easy to build something that will collect 95% of the stuff before it gets to the VAC. Doing one that will capture all the dust including the dangerous fines is much harder.

A simple one I made:

other made by Andy D:

Really effective cyclones needs lots of airflow. If you really want detail, then look at:

I like the idea of a cone and a 2nd 'drum' .... Dyson makes a fortune selling this :-) as if its his original idea.

I'll try Rutlands .. need to find a male plug to fit the 38mm Vac inlets fitted to the wall .... (US 1.5" fittings I assume)

Years ago I had access to a lathe and nylon rod - would have turned one out easily.

Rutlands and Axminster will likely have adaptor fittings. Failing that, ebay.

found suitable adapter .. looking now for 38mm (1.5") or 50mm hose ..... found sellers but prices are high .... £38 for 6m

You could always make some.

NT

Making up hose is not something I want to waste my time on.

Surely the purpose of corrugated vacuum pipe is to resist pipe collapse under negative pressure e.g. when you "stick" the head of the cleaner onto an object like the floor etc but it also makes for a thin walled and very flexible pipe as would be required for any moveable suction head.

Interestingly, regarding the leaf blower, I have a "blower" pump removed from a spa/whirlool bath that I was thinking would work in conjunction with a workshop cyclone "barrel" but didn't know whether the dynamics of a blower would be the same as a vacuum specific "suction" device or is it simply a matter of use rather than design?

Not hose, but effective adaptors can be made from some wide bore heatshrink, and sometimes offcuts of other pipes like 34 or 42mm waste pipe.