Sorry for all the noise, just back up from the workshop.
I have converted my welder to weld aluminium, using a teflon liner, argon mini gas bottle and aluminium wire. The liner didn't fit so I had to bodge it a bit, the mini gas bottle doesn't connect to the big hose from my size Y Argoshield bottle so I had to bodge that too.
The welds are not pretty, yet, and I think the mini gas bottle hasn't managed to purge all the air and Argoshield gas from the hose so the welds are a bit spotty and messy. However, it should work once all the trouble shooting as been shot.
I should actually get a real stainless steel wire brush to clean the aluminium but I haven't found one yet. That doesn't help either...
Still, I can make puddles of molten metal, just not where I want them yet.