Dust Deputy Static Questions

[Stoli]

Background: I currently have 3 vac systems in my shop: 1 dust collector, a shop vac, and a CT Midi.  I use the DC for the big tools (TS, jointer, and planer).  I use the Midi for the Domino, router, and sander.  I use the shop vac for everything else -- cleaning mainly.  I'd like to eliminate the shop vac and have the Midi do all the odd job tasks as well.  I would like to combine with a ultimate dust deputy to not fill the CT bag as often.

My main question is on static.  I believe the early version of the DD had static buildup issues, but the new version does not.  Is the CT protected if I use a non static hose or attachment?  I believe it should be, since the static buildup should stop at the entrance to the UDD and not be passed on to the CT.  Is this correct? 

 

[Bohdan]

The static is generated by the dust moving thru the hose and it builds up until you get a spark to discharge it. This is what can damage the electronics of the CT.

When the dust travels thru an antistatic hose the hose discharges the static and prevents a build up of charge. If you use an antistatic hose between the CT and the DD then this will prevent a build up of static reaching the CT on the new DDs but if it is one of the older DDs and the hose to the tool is antistatic the tool will become charged unless you loop a piece of wire between the inlet and outlet hoses of the DD.

If you use a non antistatic hose between the CT and the DD you will need to also loop an earthed wire from the CT thru to the inlet hose of the DD. The easiest way to loop the wire is to jam it between the hose and its socket.

 

[peter halle]

Background: I currently have 3 vac systems in my shop: 1 dust collector, a shop vac, and a CT Midi.  I use the DC for the big tools (TS, jointer, and planer).  I use the Midi for the Domino, router, and sander.  I use the shop vac for everything else -- cleaning mainly.  I'd like to eliminate the shop vac and have the Midi do all the odd job tasks as well.  I would like to combine with a ultimate dust deputy to not fill the CT bag as often.

My main question is on static.  I believe the early version of the DD had static buildup issues, but the new version does not.  Is the CT protected if I use a non static hose or attachment?  I believe it should be, since the static buildup should stop at the entrance to the UDD and not be passed on to the CT.  Is this correct?

It appears that Dust Deputy has addressed issues and that they feel safe with its use with the Festool CT's.  Festool will not warrant damage caused to the CT's if the Dust Deputy is used.  this was written quite a while ago and I don't remember reading about a change in the use of third party products in quite some time.

Peter

 

[Stoli]

When the dust travels thru an antistatic hose the hose discharges the static and prevents a build up of charge. If you use an antistatic hose between the CT and the DD then this will prevent a build up of static reaching the CT

This was my thought was well, and what I was looking to confirm.  I am looking to get a new UDD, which contains a static dissipative hose between the cyclone and CT.  As long as this path is maintained, using non-static dissipative components beyond the cyclone would be OK.

It appears that Dust Deputy has addressed issues and that they feel safe with its use with the Festool CT's.  Festool will not warrant damage caused to the CT's if the Dust Deputy is used.  this was written quite a while ago and I don't remember reading about a change in the use of third party products in quite some time.

I believe you are correct, Peter.  Oneida changed their design to include static dissipative components, but Festool still does not support this third party addition.  I recognize and accept this potential risk.

 

[peter halle]

I used a dust deputy on my CT-22 for quite some time and enjoyed it except it was a bit cumbersome.  I have an older CT-22 though.  It is standing buy for those times when I make a bunch of chips using the router.

Peter

 

[Peter Durand]

Background: I currently have 3 vac systems in my shop: 1 dust collector, a shop vac, and a CT Midi.  I use the DC for the big tools (TS, jointer, and planer).  I use the Midi for the Domino, router, and sander.  I use the shop vac for everything else -- cleaning mainly.  I'd like to eliminate the shop vac and have the Midi do all the odd job tasks as well.  I would like to combine with a ultimate dust deputy to not fill the CT bag as often.

My main question is on static.  I believe the early version of the DD had static buildup issues, but the new version does not.  Is the CT protected if I use a non static hose or attachment?  I believe it should be, since the static buildup should stop at the entrance to the UDD and not be passed on to the CT.  Is this correct?

I use the festool green hoses. However festool also sells the grey hoses which is I believe are non static. So that leaves me a bit confused on the issue of vac protection. Any thoughts welcome.

Cheers,

Peter

 

[rmwarren]

[member=22819]Stoli[/member] - I have an early model DD on my CT26, never had a problem with static but Oneida did send out upgrade kits @ no cost twice. The second one included some braided stainless grounding wires that bridged the connection between the lid/bottom of the dust canister (lid/canister are separated by a foam seal) which I believe closed the circuit and corrected any remaining issues.

FWIW I decided to take the risk also but have never worried about damage to the CT, the DD is a great additional to the CT.

RMW

 

[Stoli]

FWIW I decided to take the risk also but have never worried about damage to the CT, the DD is a great additional to the CT.

I'm getting annoyed with my current shop vac setup: hoses and floor sweep always in a tangle.  My plan is to get them all off the floor and attached to some kind of structure I build around the UDD.  I have seen something similar on Jay Bates' channel.

 

[JimD]

I use a dust deputy on a Rigid shop vac and have no features to deal with static.  I use the stock Rigid hose on some tools and a Bosch 5M hose for smaller tools.  I have filled at least 10 drywall buckets with this setup so far with no noticeable static buildup.  The shop vac is simple but I also added an electronic auto-on switch which is also working just fine.

I do not know what would happen to a Festool vac and it is a significant investment so I can understand not taking a risk but I think static buildup in dust collection is very overblown.  I used to use a little DC, again with no grounding or other protection, and never had an issue. 

 

[leakyroof]

[member=22819]Stoli[/member] - I have an early model DD on my CT26, never had a problem with static but Oneida did send out upgrade kits @ no cost twice. The second one included some braided stainless grounding wires that bridged the connection between the lid/bottom of the dust canister (lid/canister are separated by a foam seal) which I believe closed the circuit and corrected any remaining issues.

FWIW I decided to take the risk also but have never worried about damage to the CT, the DD is a great additional to the CT.

RMW

  This totally matches my experiece with both my UDD and either CT Vac that I've used it with. But, as always, I never used the supplied feed hose that goes from the UDD to the VAC as it came from Oneida, instead, I bought the 50mm Boom Arm AS hose from Festool and I think or I hope,... it was the main reason I never zapped my CT's even before Oneida sent out the 'upgrade' kit for static conducting to me.