Anti-static Vacuum hose

Anti-static Vacuum hose … My new Gen 2 Elite (journeyman, Redline HMI, Onefinity dust boot) stopped in mid carve, on 3 separate attempts, as I tried to do its first milling, which was to flatten its waste board. Onefinity support suggests the issue is static electricity build up and so far, I’m inclined to believe this. The solution they say includes replacing the vacuum hose that connects from the dust boot to the shop vac, with a very particular type of vacuum hose. This hose needs to have an internal ‘conductive drain wire’. In my case it needs to be a standard 2.5" diameter, around 12 feet long, and hopefully at a reasonable price.

* Has anyone had this same issue, and did the new vacuum hose fix it?
* Any good ideas where to source this hose?

Many Thanks! Gary

Here is more info if curious …

Why not just run an external wire on the hose you have, and make sure you’ve got good metal to metal contact on each end?

I was thinking the same thing. As long as the wire is grounded on the machine, and grounded on the dust collector, it should provide adequate grounding to prevent static electricity. Treat it like you are working on small electrical components.

I ran a bare copper wire on the inside of the hose. The CNC doesn’t generate big chips, so I’m not too concerned about chips catching on the wire.

Thank You all for your responses, a few questions and comments …

  • Info on the page (from Onefinity) that I didn’t post here suggests the static charge builds up INSIDE the hose, not outside, has that been YOUR experience?
  • I’m hopeing to figure out a way to attach the copper drain wire in a way that won’t be a nuisance to attach/detach when I want to do milling WITHOUT the dust hose attached to the dust boot, do you have any solutions/ideas to make that work?
  • Do you have a link to a specific vacuum hose you may have used/ordered, around 14 feet long?

That hose is going to be pretty expensive. The cheapest one I could find in a quick search on EBay (my go-to) was around 80 bucks for 10 feet. Being naturally cheap, I’d try the easy fix first, and try some carves in trash wood.

The inside/outside static charge hasn’t been my experience, but I’d have to defer to OF’s greater knowledge. I’d try stripping the wire extra long and fold it back inside the hose, capture it with the hose clamp on both sides of the hose on both ends.

Any electrical connector should work for a quick disconnect. Look around your local hardware store (I really miss Radio Shack!)

I purchased a Urethane Dust Collection Hose and grounding wire on infinitytools.com there prices were the best I was able to find.

joes64 … thank you for the info!

Rockler makes a 2.5” anti static dust hose. It’s what I have for my Gen 2 Woodworker. Haven’t had any static or electrical issues while using it.