Extractor in the Garge rafters

[ScottGoddard]

Hi, as anyone put an extractor in the rafters?

 

[Myfordman]

Yes. Ideal location. What is the doubt behind your question?

 

[ScottGoddard]

Dust via the top bag remaining up there building up where i cant get to (very easily)...

 

[AJB Temple]

My workshop was a former pigeon loft for someone who kept hundreds of them. It has 6 vented extractors in the pitched roof, switched in two banks. Very effective. Dust build up not an issue. That said I also have a Jet cyclone and a startrite fine dust extractor.

 

[Myfordman]

Dust via the top bag remaining up there building up where i cant get to (very easily)...

Ah! ok understood. My blower is hung in between the rafters but the dust collects in a bin on the floor for ease of emptying.
the exhaust filter is also hung off the rafters and only gets cleaned out every couple of years when the mood takes me.

The arrangement means the floor space consumed is minimal ~400mm diameter.

I did post a video many moons ago and will search for a link to it.

Here it is post171559.html

Somewhat horrified to see it is over 10 years ago that's about 130 moons! but still going strong.
That must mean over 11 years since Barry died RIP

EDIT: My video seems to have been deleted by photobucket. but the stills give an idea of the arrangement.
I might still have the original but will take some searching for!


I left the computer searching all around the network whilst I got on with some jobs and it found the video!!

Here is a fresh upload http://vid115.photobucket.com/albums/n3 ... lexevo.mp4

HTH

 

[shed9]

You could fit a cyclone and remove the top bag from the equation all together.

 

[ScottGoddard]

You could fit a cyclone and remove the top bag from the equation all together.

I have thought of that, but always though you n=would still need the top bag....Or not as all the dust gos through the cyclone to a bin? Any picture of what this could look like?

 

[ScottGoddard]

Dust via the top bag remaining up there building up where i cant get to (very easily)...

Ah! ok understood. My blower is hung in between the rafters but the dust collects in a bin on the floor for ease of emptying.
the exhaust filter is also hung off the rafters and only gets cleaned out every couple of years when the mood takes me.

The arrangement means the floor space consumed is minimal ~400mm diameter.

I did post a video many moons ago and will search for a link to it.

Here it is post171559.html

Somewhat horrified to see it is over 10 years ago that's about 130 moons! but still going strong.
That must mean over 11 years since Barry died RIP

EDIT: My video seems to have been deleted by photobucket. but the stills give an idea of the arrangement.
I might still have the original but will take some searching for!

Thank for this, do you lose any suction by using the flexile hose? (probably not with a 3HP motor). Also where is your piping for the tools? should it come off the Y piece?

 

[DennisCA]

You could fit a cyclone and remove the top bag from the equation all together.

Or he could eject the debris outside into a bin and skip the cyclone. Just make a shed like extension that houses the bin so the dust doesn't go flying all over.

 

[Myfordman]

Dust via the top bag remaining up there building up where i cant get to (very easily)...

Ah! ok understood. My blower is hung in between the rafters but the dust collects in a bin on the floor for ease of emptying.
the exhaust filter is also hung off the rafters and only gets cleaned out every couple of years when the mood takes me.

The arrangement means the floor space consumed is minimal ~400mm diameter.

I did post a video many moons ago and will search for a link to it.

Here it is post171559.html

Somewhat horrified to see it is over 10 years ago that's about 130 moons! but still going strong.
That must mean over 11 years since Barry died RIP

EDIT: My video seems to have been deleted by photobucket. but the stills give an idea of the arrangement.
I might still have the original but will take some searching for!

Thank for this, do you lose any suction by using the flexile hose? (probably not with a 3HP motor). Also where is your piping for the tools? should it come off the Y piece?

Video here now http://vid115.photobucket.com/albums/n3 ... lexevo.mp4
which shows the piping to the machines.
In answer to your question, yes the flexible hose costs a bit of suction in friction but overall the performance has been been adequate. The 200mm surface planer which can chuck out a lot chips is on the furthest inlet from the cyclone and has only blocked once and I now have a 15" thicknesser about 4m from the cyclone (third drop on the left in the video) and that has been fine so far.

hth

 

[shed9]

You could fit a cyclone and remove the top bag from the equation all together.

Or he could eject the debris outside into a bin and skip the cyclone. Just make a shed like extension that houses the bin so the dust doesn't go flying all over.

But the air still needs flow via some form of exhaust and a cyclone deals with the bulk of the debris limiting this element of the output.

 

[ScottGoddard]

o where is your piping for the tools? should it come off the Y piece?[/quote]

Video here now http://vid115.photobucket.com/albums/n3 ... lexevo.mp4
which shows the piping to the machines.
In answer to your question, yes the flexible hose costs a bit of suction in friction but overall the performance has been been adequate. The 200mm surface planer which can chuck out a lot chips is on the furthest inlet from the cyclone and has only blocked once and I now have a 15" thicknesser about 4m from the cyclone (third drop on the left in the video) and that has been fine so far.

hth[/quote]

thanks, thats a hell of a set up! Are those a set of fliters at the end of the run? What is the piece before the filters?

 

[Myfordman]

thanks, thats a hell of a set up! Are those a set of fliters at the end of the run? What is the piece before the filters?

As per video soundtrack, the item is a silencer (as designed by Bill Pentz - details on his website).
It came with all the stuff I bought From Barry Burgess's widow - (his posts are still on this forum where you can see his arrangement which took a lot of room)
I'm not 100% convinced it makes much difference but not easy to prove with out re jigging everything and I don't have any extra 6" hose to bypass it with. It is up on the ceiling out of the way so it stays there.

The main feature for me is that the cyclone and collection drum take up very little floor and wall space and everything else is up out of the way.

 

[DennisCA]

You could fit a cyclone and remove the top bag from the equation all together.

Or he could eject the debris outside into a bin and skip the cyclone. Just make a shed like extension that houses the bin so the dust doesn't go flying all over.

But the air still needs flow via some form of exhaust and a cyclone deals with the bulk of the debris limiting this element of the output.

The air will have no problems exiting a roughly built enclosure in all directions, all it needs is to roughly guude the air and stop the big pieces from going too far. It will be a bit messy in there so this limits where this solution can work due to neighbors and such. But the plus side is no cyclone, a cyclone robs about half your blowers performance, and a material handling blower is already only half as effective as a caged, non-material handling one.

 

[shed9]

The air will have no problems exiting a roughly built enclosure in all directions, all it needs is to roughly guude the air and stop the big pieces from going too far. It will be a bit messy in there so this limits where this solution can work due to neighbors and such. But the plus side is no cyclone, a cyclone robs about half your blowers performance, and a material handling blower is already only half as effective as a caged, non-material handling one.

That is a fair point, a cyclone is going to ultimately slow the air down.

 

[paulrockliffe]

Even a bin in a shed is going to be problematic I'd think, everywhere the air is escaping it will try to take dust with it. Fundamentally to put the dust in a particular place it need to be separated from the air, anything else either has air blowing dust all over the place, or dust blocking the air's escape and killing the flow. That's why you have designs that slow the speed of particles and chips and gravity dropping them out of the airflow.

I'd be interested in good designs for this as I'm going to move my extractor eventually and can move it into the roof space, or I can move it into a coal shed quite easily too, a setup that's less noisy in the workshop and has better extraction by losing the filter would work if it's not just pumping dust all over the place!

 

[DennisCA]

Yes the area around the shed will get messy but that's the downside, if it doesn't bother you or neighbors then it means you can skip cyclone and filter. I know people who this would work for, not me though.