I have welded before and I know that you need to clean each weld with a wire brush. I just can't imagine what is created is very strong. We need some pictures and some stress tests validating it as useful.
They might be able to reduce the oxidation on each layer by enclosing the whole thing in a box filled with an inert gas. (This is the recommended technique for welding titanium, for example.)
Flux causes slag, which necessitates cleaning with a wire brush. If you read the parts listing, you'll see that they are using a Miller 140 MIG welder, which can use an external gas source instead of flux wire.
Comments
I have welded before and I know that you need to clean each weld with a wire brush. I just can't imagine what is created is very strong. We need some pictures and some stress tests validating it as useful.
They might be able to reduce the oxidation on each layer by enclosing the whole thing in a box filled with an inert gas. (This is the recommended technique for welding titanium, for example.)
Argon is relatively cheap.
Flux causes slag, which necessitates cleaning with a wire brush. If you read the parts listing, you'll see that they are using a Miller 140 MIG welder, which can use an external gas source instead of flux wire.