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arc went all over the place, seems you can create turbulence for the arc with argon flow. How?
Plasmas are governed by fluid dynamics just like anything else.
https://www.youtube.com/watch?v=hIkNY5xjy5k
Spent the last few days still dicking about with argon flow. Think I've found the sweet spot, sufficient coverage front and back, without using half a bottle per frame. Interestingly, I pissed around through the whole range of flow rate on both purge and torch just because, and even with the monster ck Pyrex cup, anything above 14l/m and the arc went all over the place, seems you can create turbulence for the arc with argon flow. How? I dont know, dont ask me..