Festool seems to be in the high pressure low volume camp. The Oneida supercell seems to be as well. But for the price, I was looking at the Record Power CamVac. Anyone here use it on a sawstop’s 4” port? Was looking to get either the 2motor or 3 motor and adding a metal cyclone as I hear they like to buckle plastic bins from the high static pressure. Just for grins has anyone just hooked up 2 Festool dust extractors and measured suction or cfm?
Opinions on HPLV dust extraction on a cabinet table saw?
- Thread starter ferntree
- Start date
A typical CT has about 135 cfm, and even two CTs won't be good enough for a SawStop (PCS or CNS), which requires at least 350cfm, even more for an ICS.
I use a 1HP HEPA dust collector (about 650 cfm) for my SawStop PCS plus a shop vac for the overarm dust collection and blade guard, with excellent results. The dust collector is used on the lunchbox thickness planer now and then.
I use a 1HP HEPA dust collector (about 650 cfm) for my SawStop PCS plus a shop vac for the overarm dust collection and blade guard, with excellent results. The dust collector is used on the lunchbox thickness planer now and then.
It won't work, you need high volume, the maximum a 4" duct will flow which is about 700CFM and even that is marginal and add a flexible hose and you may as well not bothered. Opening the machine port to 6" and a flow of 1000CFM will work. Festool's DE system is good for portable electric tools which was its designed purpose, working on site and leaving it clean after the work has been finished with minimal clean up involved.
I just wonder why you need high cfm for dust from a table saw. I can understand larger chips from a planer or jointer, but a table saw like a track saw, like an mitre saw use a blade that makes dust. . . For $500 I might have to experiment with the CamVac.
The typical ripping on a table saw generates a huge amount of dust (high volume) that is too much for a shop vac (high pressure). Imagine that you attach one end of a 4" dia. hose to the shop vac and the other end of the hose to the 4" port on the table saw, and put your hand on the saw's zci opening. Do you think you would feel any strong suction?
Edit: The factory fitting on your machine should give you some idea about what type of dust extraction should be used. Cabinet saws and bandsaws that have a 4" dia. port are meant to be hooked up to a dust collector rather than a shop vac.
Edit: The factory fitting on your machine should give you some idea about what type of dust extraction should be used. Cabinet saws and bandsaws that have a 4" dia. port are meant to be hooked up to a dust collector rather than a shop vac.
I use an older model Record twin motor HPLV extractor on my saw and it works great.
You do need to be careful with a HVLP extractor and a zci as HVLP extractors need to breath and if things are too sealed up they get choked.
A shop vac can work well on the crown guard as long as the hose diameter isn't too large.
This is my set up.
[attachimg=1]
You do need to be careful with a HVLP extractor and a zci as HVLP extractors need to breath and if things are too sealed up they get choked.
A shop vac can work well on the crown guard as long as the hose diameter isn't too large.
This is my set up.
[attachimg=1]
Attachments
It is the 2 motor setup with a 4” port. May I ask which 1hp with a hepa filter you use? My google fu only shows Oneida using hepa filters and none are 1hp that produce your cfm. I’m wondering if a dust gorilla is the easiest but most expensive plug and play option to get a true HEPA rating. Though I wonder how quickly it will get choked up being so restrictive.
https://www.canadianwoodworker.com/webstore/wecs.php?store=wood&action=display&target=CWI-DCP005H
Other retailers like Busy Bee Tools, KMS Tools, etc. offer HEPA dust collectors for those of us in Canada.
You'll note that in my previous post, I said 650cfm for the Dustfx, because I think most cfms quoted by retailers may be achievable only under ideal conditions.
Other retailers like Busy Bee Tools, KMS Tools, etc. offer HEPA dust collectors for those of us in Canada.
You'll note that in my previous post, I said 650cfm for the Dustfx, because I think most cfms quoted by retailers may be achievable only under ideal conditions.
ferntree said:
Not knowing its exact spec., but I'll be inclined to think that should be a good one for the SawStop, given its port size.
Not too long ago, I also shared how great the SawStop dust collection blade guard (hooked to a shop vac) was in this thread:https://www.festoolownersgroup.com/...s/systainer-air-scrubber/msg692231/#msg692231
The only thing I will add to my comments above is that most people think because they collect the visible debris then they have good dust collection but that is not necessarily the case and in most cases it does not collect the invisible dust that is the dangerous stuff. The visible stuff can be swept up but the invisible stuff goes into our lungs and stays there. Unfortunately you reap what you sow, there was a recent thread over at Sawmill Creek which had a graphic story of a WW suffering from breathing dust. There are proven methods for micron sized dust collection and the best dust collection information for hobbyists on the planet can be found herehttps://www.woodworkforums.com/f200
Read the stickies and after that have a think about your DE system.
Read the stickies and after that have a think about your DE system.
usernumber1
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In my opinion there's two issues here, debris collection and health hazards. I don't think the sawstop is designed to collect the micron sized dust no matter what vacuum collection you connect it to.
I would think a mask and a dedicated air filtration for the shop or the area would be better suited. I just don't think there's any amount of sucking from either top or bottom going to capture it all/
I would be curious if any of the users with a larger dust collector that also have a particle counter would share their experiences / vs a shop vac and a cyclone
I would think a mask and a dedicated air filtration for the shop or the area would be better suited. I just don't think there's any amount of sucking from either top or bottom going to capture it all/
I would be curious if any of the users with a larger dust collector that also have a particle counter would share their experiences / vs a shop vac and a cyclone
I do have a particle counter, though not the professional kind, but it does give me an idea how bad the shop is (if I remember to turn it on [big grin]).
Generally speaking, the SawStop operation doesn't cause much problem (or none?) because the air filtration system sits next to it, and the dust collection blade guard is so effective (I do think it works as good as , if not better than, the under-the-table dust collection that is connected to a 1HP dust collector). I've noted elsewhere before that crosscut and edge cuts are a different story.
Some users reported poor dust collection results with the blade guard (way less than the 99% efficiency claimed by SawStop) because they relied on the same dust collector for both the under-the-table and overarm dust collection. The 90* chute on the 4"port simply kills the collection for the blade guard.
I have used the floating overam dust collection in an ICS setup for some time, but in my experience, it was not as good as the overarm dust collection blade guard in several aspects.
Generally speaking, the SawStop operation doesn't cause much problem (or none?) because the air filtration system sits next to it, and the dust collection blade guard is so effective (I do think it works as good as , if not better than, the under-the-table dust collection that is connected to a 1HP dust collector). I've noted elsewhere before that crosscut and edge cuts are a different story.
Some users reported poor dust collection results with the blade guard (way less than the 99% efficiency claimed by SawStop) because they relied on the same dust collector for both the under-the-table and overarm dust collection. The 90* chute on the 4"port simply kills the collection for the blade guard.
I have used the floating overam dust collection in an ICS setup for some time, but in my experience, it was not as good as the overarm dust collection blade guard in several aspects.
usernumber1
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Mini Me said:
all i see is a forum link
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