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If it is low pressure 63mm duct is a problem. There simply is not enough air. 63mm is not half of 125mm it is a quarter in approximate terms of area available but it is not a straight line reduction. So if it is 2000m3 at 125mm pipe, 63mm is not 500m3. Then you get a general reduction over...

There is a theory that the blast gate should be near the branch so that it does not create turbulence and fill the leg with chippings. But the practical place is as you say, the joint with the flexi

In simple terms a low pressure system is just a big blower which blows the dust into the bag so it needs lots of air and velocity to move the dust and keep it moving in the ducts. If you restrict the flow rather than increasing the velocity you starve the system of air and it fails. Hence for...

That brings back memories I made some 30 years ago out of birch ply. To keep the weight down we cut circles out of the sides in a decorative pattern. The front and back side was 4' long and the other sides were made of two pieces to make each side (each piece was slightly less than 2') we used...

Mike I agree there are differences, I just did not expect such a large difference. Terry, Even the HSE recommend the light test can be done with a torch to get an indication http://www.hse.gov.uk/pubns/mdhs/pdfs/mdhs82-2.pdf

The torch test is a cheap guide but of some value. For instance tobacco smoke is said to be 0.02 to 1 micron but you can see it in a cloud. Same with wood dust if there was only one spec in the room you would not see it but if the room is full of fine particles the light bounces of the...

Terry did you include the price of brackets in your comparison? They were expensive at Ductstore, but they are substantial. I also had my one bend made as a slow bend and as clip on rather than push fit spiral. The slow bend maintains the flow better and the clip on creates an access point...

Gareth if you are building at the moment I would definitely plan a little lean too for your extraction. I bought the Jet and then cannibalised it so that I could put the fan straight on the end of my ductwork and suspended it from the roof of my lean too. I have been very pleased with the...

Terry. It is frustrating. It should not be given that the latest regulations require you to know that you have taken all reasonable steps. Yet we cannot get a straight answer to how much the filter will trap. Unless you get a professionally designed system it is difficult to know. Most...

Terry If the cyclone works very little get beyond it. However you really need a good canister type filter 0.5 mu or less. The problem is the fine filters reduce the suck. Or extract to the outside then your Sipp sack filter is fine. You are right the flexi hoses cause turbulence so reducing air...

Al You probably do not need a dust meter. At the end of the day grab a torch switch the lights off in your workshop and then shine the torch across the shop.

Mr Alan that was the unscientific version. If you want to see the science read Bill Pentz website http://billpentz.com//woodworking/cyclone/index.cfm The problem with a machine you move around is first the size of hose you use. Most people use 100mm hose which restricts the flow and you cannot...

If you want to be dust free you probably need to increase the budget. The Planer/thicknesser, panel saw and spindle each need around 750 to 1000 cfm and 150mm ductwork to achieve dust free. As an example the Woorstar you mentioned will achieve a theoretical 106 cfm. A tenth of what you need...

I use white pencils. Axminster used to sell them by the box full, but alas no more, try Amazon.

I had a set up like the DX5000 until a year ago. It was good with all the fine dust generating machines and OK with the Planer/Thicknesser if you do not mind unblocking it every 15 minutes and do not mind that it only does 75% of the job. In the end I decided I needed proper extraction on my...

A wedged M&T offers a mechanical fixing so if the glue fails the joint does not necessarily. A Domino only has the glue. I do not see the point in taking the risk.

Compare it to the Record BS400. When I looked and several others looked at this Axi machine, the Record BS400 and the Hammer N4400 most chose the Record. Price (especially if bought at a show) and the fact that the Record runs of a 13A plug swayed me. The only downside I have with the Record...

75 hours work to save £500 does not make any commercial sense I agree with most buy it or try it for yourself For kitchens and wardrobes they are excellent. I would not use it to make a full sized internal door let alone external.

I have one of these running my 2HP dust extractor. They are good because they do not need line of sight between the remote and the plug. also in theory you could control several sockets with one remote and several plugs (not tried).

I still think it needs dimples, every time I pick mine up I think how much more comfortable it would be.