So I ordered a single rod to have a play with. The reason is I don't access to electrics in the garage so can't run a welder so figured this may help for some small bits. I will admit I'm shit at this, nerve damage means I have a slight shake. Anyway
So a single rod was brought of eBay. I have used brazing rods in the passed when I made doors on the RZR and it's was plenty strong but tbh my mate did most of it.
The bit that I really wanted to try was setting a thread.
Grabbed some scrap ally out the box. And tryed putting a couple of bit together.
Then tryed setting a thread
It's a bit fiddly but got something sorted in the end
So yes it does work, no it's not easy. Takes alot to warm the bit up and you run the risk of damaging thin ally but with a bit of practice I think you could get some nice welds with it. I think I'll look at welding methods once I get moved but good to know it's there if I need it.
And a bonus of that I get a pen holder out of it