Replies on Comment by Batcrave

under I have a Festool midi-1 vac, expensive but very good, plus I made an adaptor to the wired clear hose using 3d printer. The clear hose has a copper wire inside it and this wire is earthed as well as the cnc machine frame to my central heating pipe, its all about EMF reduction. The blackbox and inteface units where having problems where jobs just stopped due to interference caused by EMF or static buildup.

apparently air going through a plastic hose can build up a static charge which may eventually dump into EMF or a endstop

So to answer your question, I don't have a shop vac as too noisy in my house, and gone for a quiet solution, but did the work to use an earth-able hose from amazon, I think its 60mm

I still need to build a better "curtain rail" type support above to hold the hose above support the hose for the dust collection shoe so it can reach everywhere but keep up and out the way