Massive Static sparks in dust shoe

[mturneruk]

Hey chaps.




Yesterday i got a fairly big shock while adjusting my 3d printed dust shoe during a cut.

Since then i notice that every few minutes of cutting a fairly large spark seems to be jumping from the white shoe up the black collection pipe with an audible spark noise.

From what i have read this is static caused by the dust travelling up the pipe.

Question is what can i do to stop it, as i don't fancy getting another jolt like I did yesterday. Any way to earth this plastic pipe ?

Cheers
Martin