metal spinning

how do you measure the surface area required for parabolic vesal. the material volume of the plain plate should equal to the material volume of the parabolic veseel. that is thickness mulitiply by surface area. how do you ensure the required thickme]\ness is reached.
I like the video.

wonderful thanks for sharing

Wow, this is amazing! I've never known how these shapes are made. Thanks for sharing!!

WILD!! I've never seen spinning before

That is very cool. About how many RPM's do you spin the metal at?

that was pretty cool.

what's kind of material about the tooling? how do you make it?

One of the coolest videos I've ever seen. Thanks for posting it.

What type of tool is he using to form the spinner? And what assures that the metal gauge is uniform across the surface?

the skill of the tradesman ensures even gauge throughout the part