well i tried two 1.6mm rods today in the spot welder
set on 1.5 + 1.5 and it welded them but a little too much..
tried on 1.2 + 1.2 and still a little too much..
il have a search for a couple of 2.4mm rods.
only need to be short just to test in the welder.
if it works out ok then il order a pack. if i win what i need the basket for
and if the TIG rods are too short you can get spools of Sub Arc Wire in 2 and 2.4 but its rare but your welding supplier should be able to source some.