For those with dust collection/dust shoe setups on your CNC router what provisions - if any - have been made to bleed off any static electricity charge?
In operation, I don't notice any charge buildup on my vacuum hose when it is attached to my shoe but if I am holding the hose in my hand instead there is definitely a buildup of charge. My concern is that the same sort of charge is accumulating (unnoticed) when using the shoe.
My thought was to ground the hose attachment point on the shoe to the electrical outlet (earth ground) but perhaps there is a better way.
To give some background on why I am concerned: I once was sanding drywall with a RO sander with a shop vac attached. Static charge was always a problem (since it wanted to discharge through me if it could - ouch) but somehow the charge built up to the point where it arced through the insulation system in the sander to the neutral of the power line - to the point where the sander actually caught on fire. I don't expect anything that extreme to occur with my CNC but I am concerned that the charge could upset toolpaths etc.
Comments would be appreciated.
In operation, I don't notice any charge buildup on my vacuum hose when it is attached to my shoe but if I am holding the hose in my hand instead there is definitely a buildup of charge. My concern is that the same sort of charge is accumulating (unnoticed) when using the shoe.
My thought was to ground the hose attachment point on the shoe to the electrical outlet (earth ground) but perhaps there is a better way.
To give some background on why I am concerned: I once was sanding drywall with a RO sander with a shop vac attached. Static charge was always a problem (since it wanted to discharge through me if it could - ouch) but somehow the charge built up to the point where it arced through the insulation system in the sander to the neutral of the power line - to the point where the sander actually caught on fire. I don't expect anything that extreme to occur with my CNC but I am concerned that the charge could upset toolpaths etc.
Comments would be appreciated.