OK, sorry for the very English use of the term earth instead of American ground but seeing as I'm a Britt I have an excuse.

Otto
Thanks for the tip about using a length of cable and the stick-out I'll try them.
Mike G

Hi I'm new to welding Aluminum and have a small European (Air Liquide) AC/DC Tig welder with frequency and balance control. I'm practicing butt welding aluminium pipe (1" dia 0.068" thick) with a 1.6 mm (0.062") thoreated tungsten, 1.6 mm filler rod, 60 amps, 100 hz and 60% balance bu...