johnakay Member Messages 1,715 Jan 10, 2009 #21 bought an aluminum sheet 500mm x 500mm x3mm for £20 inc post.
Tino Member Messages 457 Location G.B. Lancashire Jan 11, 2009 #22 R Kraft said: Maybe a silly thing to say. Why not rig an expanding ground clamp and ground to the inside of the tube. Robert Click to expand... Doesn't sound silly to me. I some times have to weld hydrolic rams, and can't afford stray arcs. Connect the earth where it doesn't matter or cant be seen simple.I think the alli will arc much the same but good luck. Last edited: Jan 11, 2009
R Kraft said: Maybe a silly thing to say. Why not rig an expanding ground clamp and ground to the inside of the tube. Robert Click to expand... Doesn't sound silly to me. I some times have to weld hydrolic rams, and can't afford stray arcs. Connect the earth where it doesn't matter or cant be seen simple.I think the alli will arc much the same but good luck.