Having trouble with your Festool power tool? Well, we're here to help you. Before posting to the forum, give us a chance to diagnose and resolve your issue. In the U.S. and Canada, call us toll-free at 888-337-8600 on Monday-Friday between 8a-5p EST or contact us via email at service@festoolusa.com. For other countries, please visit http://www.festool.com for contact information for your local Festool service department.

Author Topic: Extractors and Table Saws  (Read 7065 times)

0 Members and 1 Guest are viewing this topic.

Offline DanMcDan

  • Posts: 13
Extractors and Table Saws
« on: July 24, 2018, 03:33 PM »
I have heard/read the CT series is not designed for use with a table saw.  If that is true (is it?), will the new Festool separator coming out this fall make it a better proposition?

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline Birdhunter

  • Posts: 3356
  • Woodworker, Sportsman, Retired
Re: Extractors and Table Saws
« Reply #1 on: July 24, 2018, 03:39 PM »
I don’t think any “shop vac” is an adequate extractor for a table saw. Both the table saws I’ve owned have 4” ports for extraction. To be effective, a table saw needs a very high volume high suction extractor. It also need a large repository for the debris.
Birdhunter

Offline Dick Mahany

  • Posts: 555
Re: Extractors and Table Saws
« Reply #2 on: July 24, 2018, 04:09 PM »
It depends on the table saw.  On my last Unisaw cabinet saw, it had a 5" port and needed a high volume cyclone to extract dust.  No shop vac would handle it.  After I downsized, I use a DeWalt portable saw that has a very well done 2.5" extraction port below with a well sealed lower shroud, and an excellent upper port on the blade guard.  My Ridgid shop vac connected to a dust deputy works incredibly well. and I use a CTL Sys for the above the table upper extraction.

Caveat.....this set up IS NOT suitable for a Festool CT extractor due to static build up which can lead to failure of the electronics.  So if you are talking about a small table saw with a 2.5" port, then a CT extractor may possibly work especially if coupled to an antistatic cyclone such as the Oneida or the soon to be available Festool pre separator.

If you are talking about a full size table saw, then a large port high volume CFM dust collector will be required. 

The set ups below work well for the portable saw set up.



« Last Edit: July 24, 2018, 09:13 PM by Dick Mahany »

Offline DanMcDan

  • Posts: 13
Re: Extractors and Table Saws
« Reply #3 on: July 24, 2018, 04:42 PM »
I should have been more clear - I do have a SawStop Jobsite saw with a 2.5 inch port.  I'm currently using a shopvac with Oneida's cyclone and it works great.  I was just hoping to cut down on noise, size, and perhaps get better results. 

It makes sense to me it would work jsut as well for the table saw as it does for the track saw since both use an 1/8th inch blade kerf, but as I said, I read or heard it's not a good situation.

Thanks for your input!  I'd still love to hear from Festool on the practicality of the new separator attached to a smaller table saw!

Offline LooseSox

  • Posts: 133
Re: Extractors and Table Saws
« Reply #4 on: July 24, 2018, 04:52 PM »
I too have the saw stop job site saw. I use my CT36 to extract from it with a 2.5" hose with no issues. When I'm using the optional overhead extraction guard, I use the festool split 27/36 hose. 27mm end perfect fit for the giard and the 36mm end into the saw with an adaptor.

Offline Dick Mahany

  • Posts: 555
Re: Extractors and Table Saws
« Reply #5 on: July 24, 2018, 05:19 PM »
I should have been more clear - I do have a SawStop Jobsite saw with a 2.5 inch port.  I'm currently using a shopvac with Oneida's cyclone and it works great.  I was just hoping to cut down on noise, size, and perhaps get better results. 

It makes sense to me it would work jsut as well for the table saw as it does for the track saw since both use an 1/8th inch blade kerf, but as I said, I read or heard it's not a good situation.

Thanks for your input!  I'd still love to hear from Festool on the practicality of the new separator attached to a smaller table saw!

I also have a CT36, but have only used it with my tracksaw and Domino since I don't have a seperator suitable for it.  Judging from a non-quantitative comparison in suction between the CT36 and the Ridgid, I'd say they are nearly the same as far as I can tell.  So I can't see any reason the CT36 can't handle a jobsite table saw just fine.  I have even used a 13/16" 8" dado stack on my DeWalt and the shop vac collected nearly every thing.  That CT sure is much quieter than the Ridgid.

Offline Steven Owen

  • Posts: 443
Re: Extractors and Table Saws
« Reply #6 on: July 24, 2018, 11:37 PM »
For jobsite saws, I prefer portable dust collectors like the one below.  The 600 CFM suction works well with table saws, they’re cheap and extremely quiet.  The dust bag only filters down to 1.5 microns but you will never see a spec of dust in the air if you pair it with a good Cyclone.



https://www.busybeetools.com/products/portable-dust-collector-1hp-csa-cx-serie.html
Festool CT Midi, Festool ETS 125, DF 700 Domino Coming Soon

Offline Green Mojo

  • Posts: 56
Re: Extractors and Table Saws
« Reply #7 on: July 25, 2018, 07:17 AM »
I too have the saw stop job site saw. I use my CT36 to extract from it with a 2.5" hose with no issues. When I'm using the optional overhead extraction guard, I use the festool split 27/36 hose. 27mm end perfect fit for the giard and the 36mm end into the saw with an adaptor.

I use this exact setup and it works great. Definitely need the optional blade guard with extractor connector.

Offline Gregor

  • Posts: 1749
Re: Extractors and Table Saws
« Reply #8 on: July 25, 2018, 09:31 AM »
In regards to testing the overall performance of dust extraction, especially the fraction that gives the health problems:
Use a laser. Should the beam iitself be visible: you have a fine dust problem.

Security warning:
Just don't ever look into the beam, never point it toward reflective surfaces, avoid to (or never, for anything more powerful than a class 1 laser) look at the point where the beam intersects solid matter.

Offline RKA

  • Posts: 1983
Re: Extractors and Table Saws
« Reply #9 on: July 25, 2018, 11:39 AM »
Just to add a bit of clarity to the conversation, a cabinet saw or any tool with a 4" or larger port will require a high CFM dust collector, a festool dust extractor will be ineffective.  With the portable jobsite saws (which usually contain 2.5" ports) the Festool extractors can be used, but they are marginally effective (say 50% for arguments sake).  The flow usually isn't enough and neither is the encapsulation around the blade to maintain the air velocity created by the extractor and capture the dust.  I have a skilsaw connected to a Festool extractor that falls into this use case.  I use it in my basement shop on a very very limited basis because too much dust escapes, but it is far better than not using any dust collection.  I try to limit it's use to the outdoors with my back to the wind.  The tool wasn't conceived with good dust collection in mind. 

There are two exceptions that appear to have given thought to dust collection above the table (and I would assume below the table as well - although I can't confirm).  The one dewalt model mentioned above and the sawstop are the only two portable saws I can recollect that have extraction ports over the blade.  And if they do a good job of encapsulating the blade, they will work pretty well with a vacuum or portable dust extractor like a Festool.   Will it be enough to prevent fine dust from getting airborne?  Probably not, but it's probably far better than the results you get using a Festool extractor on any other jobsite saw which wasn't designed with dust collection as a priority.
-Raj

Offline Steven Owen

  • Posts: 443
Re: Extractors and Table Saws
« Reply #10 on: July 25, 2018, 02:15 PM »
It depends on the table saw.  On my last Unisaw cabinet saw, it had a 5" port and needed a high volume cyclone to extract dust.  No shop vac would handle it.  After I downsized, I use a DeWalt portable saw that has a very well done 2.5" extraction port below with a well sealed lower shroud, and an excellent upper port on the blade guard.  My Ridgid shop vac connected to a dust deputy works incredibly well. and I use a CTL Sys for the above the table upper extraction.

Caveat.....this set up IS NOT suitable for a Festool CT extractor due to static build up which can lead to failure of the electronics.  So if you are talking about a small table saw with a 2.5" port, then a CT extractor may possibly work especially if coupled to an antistatic cyclone such as the Oneida or the soon to be available Festool pre separator.

If you are talking about a full size table saw, then a large port high volume CFM dust collector will be required. 

The set ups below work well for the portable saw set up.

(Attachment Link)

(Attachment Link)

I like the extension you created for the Dewalt Portable saw.  Did you ever create a thread going over the design?  I'm sure you used a router for the miter channel.  I can't see how you managed to attach it extensions to the Dewalt saw.
Festool CT Midi, Festool ETS 125, DF 700 Domino Coming Soon

Offline pixelated

  • Posts: 258
Re: Extractors and Table Saws
« Reply #11 on: July 25, 2018, 10:05 PM »
I have a Bosch jobsite saw which also has a 2.5 inch port, I connect it directly to my CT-26 with a Rigid brand 2.5 inch hose, the setup has worked fine for me.
I will probably consider adding the Festool separator once it's available. Space and portability are key things for me, and I like the fact that the Festool separator appears to be somewhat more compact than a Dust Deputy, even if it might not be quite as effective.

Offline DanMcDan

  • Posts: 13
Re: Extractors and Table Saws
« Reply #12 on: July 26, 2018, 04:28 PM »
Just ordered a CT26!    [blink]  Thanks for all your help!
« Last Edit: July 26, 2018, 04:54 PM by DanMcDan »

Offline Dick Mahany

  • Posts: 555
Re: Extractors and Table Saws
« Reply #13 on: July 26, 2018, 04:54 PM »

I like the extension you created for the Dewalt Portable saw.  Did you ever create a thread going over the design?  I'm sure you used a router for the miter channel.  I can't see how you managed to attach it extensions to the Dewalt saw.

@Steven OwenI actually change the hose from the router table to the saw depending on which tool I'm using, since the hose can reach either the way I usually set them up.  I'm thinking of making a Y adapter if I can find a 2.5" dust collector gate. but for now I'll just go low-tech.

Just realized I answered a question that you didn't ask  [embarassed]  I'll start a separate thread on the table extension for the DWE 7491RS.  It simply attaches to the welded tube frame.  It is a quick knock-down table that lifts on and off.  I'll get some pics ready.
« Last Edit: July 26, 2018, 05:06 PM by Dick Mahany »

Offline Dick Mahany

  • Posts: 555
Re: Extractors and Table Saws
« Reply #14 on: July 26, 2018, 04:55 PM »
Just ordered a CT26!    [blink]  Thanks for all your help!

Get ready to smile each time you use it !

Offline DanMcDan

  • Posts: 13
Re: Extractors and Table Saws
« Reply #15 on: July 26, 2018, 07:48 PM »
I too have the saw stop job site saw. I use my CT36 to extract from it with a 2.5" hose with no issues. When I'm using the optional overhead extraction guard, I use the festool split 27/36 hose. 27mm end perfect fit for the giard and the 36mm end into the saw with an adaptor.

I use this exact setup and it works great. Definitely need the optional blade guard with extractor connector.

Green Mojo and LooseSox, do you plug your sawstop into the CT 36?  ON a 20 amp circuit?  Or do they need separate circuits?

Offline RKA

  • Posts: 1983
Re: Extractors and Table Saws
« Reply #16 on: July 26, 2018, 08:38 PM »
I’m not them, but I’ll answer that one.  You’ll need two circuits, don’t plug that saw into the CT.
-Raj

Offline jobsworth

  • Posts: 6602
  • Festool Baby.....
Re: Extractors and Table Saws
« Reply #17 on: July 30, 2018, 11:41 AM »
@DanMcDan

I dont know why ya cant not only plug yer saw into the CT and the CT should work like a champ.it may fill up faster than yer used to but it will work.

I dont see a difference between using a regular TS than using a TS 75 in a CMS.

Of course you would have to compare amp load etc. But I think you'll be fine.

Offline RKA

  • Posts: 1983
Re: Extractors and Table Saws
« Reply #18 on: July 30, 2018, 02:47 PM »
I think that's his question.  The sawstop will require 14A.  You could turn the CT down halfway to squeeze under the 20A limit on the circuit, but your dust collection goes from mediocre to worse.  And plugging a 14A tool into the CT tool port might not be advisable either, even if you're comfortable ignoring Festool's 3.7A "suggestion".
-Raj