Plasma Attempt #2

[Jonathan]

I can simply add the tube weight to the gantry weight.

Wait what... I thought this tube was spinning? Either way yes you do need to add its weight to the gantry, but if it's spinning the moment of inertia of the tube is far more significant than that.

Moment of inertia of 16 gauge is 3.35 times less than 10 gauge, so 0.135Nm as opposed to 0.45Nm - still a lot.

P.S. By my definition I've not used any maths yet, let alone made it slightly complicated!