Newbie Tig question

Hello group:
I am a newbie welder who just picked up a Thermal Arc 185Tsw, Thanks to Ernie & Gary for the low-down on inverter versus transformer
machines.
My question is this. I am laying some practice beads on steel <1/16" thick. 3/32" tungsten. after a few beads, I get a buildup of what looks like slag on the bottom edge and inside of the ceramic cup. Is this normal? if not, any suggestions for prevention?
P.S. eventually I hope to use this machine to weld stainless steel railings for boats and general repairs/fooling around in the garage.
Thanks again for all the advice. Andy Hall
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Sounds like you are dragging your cup on the metal. Don't.
The cup should float over the metal.

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Thanks for the advice. Float cup over work. Got it.
Andy
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