Giant 20' x 3' x 2' router build

[Clive S]

Yes it's all shielded at one end the Ali frame is directly bolted to the floor the moving part of the gantry though may not have any sort of ground unless it can travel through the Hiwincarriages. The problem seams to effect all switches. I was wondering about replacing a switch but wire it straight to the csmio ? Would it be best to disconnect the rest of them if I did that?

When you say the ali frame is bolted to the floor that's OK but it would still need to be bonded the star point. Also what voltage are you running the sensors at. .. Clive

Edit the mistro beet me to it