dust extraction bin

[Head clansman]

hi guys/girls

Been a while since i posted here , i have a problem a few months ago i completed the exterior of my workshop then i lined out the inside with a load of mdf sheeting that i was given the sizes fitted perfect all round the sides with very little cutting so didn't notice the dust to much then .

The problem i have is now i want to start fitting out the shop with the remainder of the mdf that came from my wifes old shop before it closed. Now that I have started machineing it more closely the dust it terrible . So instead of buying a plastic dust extraction bin and attaching it to my Hoover i made a mdf bin which is air tight and attached all the hoses one coming from the Hoover the second one attaching under the saw to collect all saw dust from underneath , now before i attached the third hose i tried it out , it worked so well in fact that it emptied out the wooden dust collector that i made entirely which sort of defeat the object it placed all the dust into the Hoover bin.

When i attached the third hose to go to the saw blade guard it placed about fifty fifty dust into the Hoover and the dust collector that i made , what i need to know how do i get it to place all the dust in my dust collector and not into the Hoover isn't that what the dust collector for so you don't clog up you air filters in the Hoover.? kind regards hc

[cnc paul]

Head,

You need to slow the passage of the air and dust so the dust drops from the air flow into the bottom of the bin.


Try putting a vertical baffle between the hose in and the hose out, you might need a bit of trial and error with how far down the bin it needs to go.......Try half way.... it needs to be a tight fit with the sides and the top.


Paul

[engineerone]

whilst paul is right he is also missing an important thing, that the
input hose should be horizontal inside the bin, and would be better if it then had a down ward tilt to kind of make the air swirl.

however, along with the baffle it is important that the output hose is lower down the bin than the input one, in this way it tends to miss more of the dust.

you are looking to get a kind of cyclone effect without the cyclone.
so you must move the air, and also kind of slow it down so the heavier than air dust will tend to drop down. making it hit the
baffle will also help with this.

paul

[stevep]

Might be worth picking up a dead Dyson from your local tip and seeing if you can bodge up a cyclone inside the mdf box - there's a good diagram on en.wikipedia.org/wiki/Cyclonic_separation
You'll probably need some gaffer tape

[Head clansman]

Hi

Thanks for your comments interesting some of those , I've since found this web link hope it work ok.
www.woodworkingcentreshop.co.uk/acatalog/images/Triton/PDFs/DCA300_spares.pdf
the downloadable diagram for spare parts gives you a general idea how to make one in wood its very similar to the inside of a VAX Hoover with the cotton filter only thing I'm note two sure about is (k) the dca014 defector valve , the diagram actual cover part of it over just the way it was drawn, any body any idea what it does look like , any one who uses the dca300 extractor any chance of some pics please . kind regards hc

[engineerone]

managed to check it, and would think that it is to stop the
air flowing straight in and out.

actually i have a version of this i have yet to use, so will check what it is and see

paul

[engineerone]

ok, looking at the triton lid i inherited from barry

it has nothing other than a central hole, plus another inlet
and outlet. one having a sliding gate in it.
the inlet has a right angled connector to direct the air into
a vortex, but otherwise no extras.

hth

paul

[Head clansman]

Hi Paul
hmm strange is it at all possible your lid is from a previouse model maybe , if there is a previouse model?, i dont know , the one shown in the diagram shows one central hole at the highest point of the dome to the lide which would be sucking air into the hoover and two other inlet holes place at the outer lower edge of the lid with what appears to be slide gates sucking air into the drum from any variouse machine which ever you have connected, placing the collected dust below the cloth filter which is streached tight over the circular frame shown, hence why no dust can get to the hoover drum , the only thing i dont understand is why the dca014 deflection valve is necessary or how it looks or actually works thats why i wanted to see what shape it is to get a better understanding as to how it works .

paul thanks for trying, much appreciated , does any one else reading this have any ideas , or can you send in some pics please

[jfc]

The Triton

[Head clansman]

hi jfc

the very thing, any chance of seeing whats inside the lid please . kind regards hc

[jfc]

No , it's a secret ;D







I'll go and take a pic now but its just a filter .

[Head clansman]

hi jfc i think theres an other piece under the filter which should do something with the airflow , i hope its called the dca014 deflector valve i need to see what sort of shap it is . kind regards hc

[jfc]

[Head clansman]

hi jfc

now that i didnt expect just an air outlet hole , ah well that make live simpler many thanks . um just a thought dont want to make a nuisence of my self any chance of one more pic showing the other side of the filter please . kind regards hc

[jfc]

I think the red scoops on the inlet holes help make a cyclone effect .

[Head clansman]

Hi jfc
i just relised that i've misinturbeted the diagram from the website totally wrong, what I thought was another spars part under the filter is'nt at all, its the right angle bracket under the inlet holes didnt relised that these are the dca014 spares parts is it possible for you to take another pic of the two right angled brackets please from a different angle from what you have already shown , the two angles force the air out in oposite directions in a circular motion forming the vortex in side the drum the upper hole outlet to the hoover sucks the air up through the center of the vortex through the filter leaving the dust behind. kind regards hc

[Head clansman]

hi jfc

seem like our post just crossed each other many many thank now i can make it proberly thank you. hc

[jfc]

Do you need more pics ?
The Triton is only £33 , would it not be cheaper to buy that and make a bigger box for it ....... If that would work

[Head clansman]

Hi jfc

i ve seen them cheaper inc vat 28 quid , nah not really as i said earlier i have a large heap of 18mm mdf from my wifes old shop when it closed down , any way buying takes the fun out of it, it will be nice when the box is made an it all works thanks to your pics it work now but needs to have no dust in the hoover now i know how to solve that problem , and now i look forwards to a nice clean shop away from all that mdf dust terrible stuff whoopee. again thanks for the pics. kind regards hc

[jfc]

Hope you post pictures when you have made it . I have , in true workshop style , taken all the hoses apart and fitted my own extended ones so they reach around the whole workshop and build area . I've noticed i seem to get better suction when the hose is coiled up rather than fully stretched . No idea why or if i actually do but it seems that way .

[Head clansman]

Hi jfc

be nice to see pics of that as i'm about to fit out my shop i might get some ideas from that , i wont be able to start altering the bin though , as monday off to the hopital again operation on the left heel to reattached the tendions with screws back into place aaarrgh not looking forwards to that , I'll be in plaster for six weeks so im limited to what i can get done at least for two to three weeks but as soon as its done i will post some pics. kind regards hc

[engineerone]

clan, good luck in hospital, sure you will be kicking balls again soon ;D

had forgotten jason had a dust bucket. mine in fact is slightly earlier, and was modified by barry from details on an australian site, and has a kind of angled floor to the base of the collector, this with the right angle causes the cyclonic effect.

with the filter in the basic position, it will indeed stop some of the dust going into the hoover, but you do need to create the cyclone to settle as much dust as possible out.

paul

[Head clansman]

hi
thanks guys i'll post asap maybe about three weeks if i dont start climbing wall by then kind regards hc

[Keith]

If you want to get any sort of cyclonic effect you are going to need to make a round bin. With MDF that is going to be a chalenge; unless you make it like a barrel perhaps??

[Head clansman]

Hi keith

I've been mulling that over during the night actual keith, I'll think about that for next few days , what i might do now is buy the triton dust collector and then add a base box about the same approximate size to the bottom of it , cut the bottom away from the triton bin and cut a hole of the same size in the wooden bin make it so it has a air tight lid with removeable bin liner for disposal of dust. any thoughts to this guys? kind regards hc