[Far]

Hi

I am trying to draw a surface body i.e. shroud or casing around centrifugal compressor.

First i tried to project a line on the one of the blades in y direction with no success. My plan was to offset that curve by constant distance (equal to tip clearance gap).

As second attempt i have created a spline by choosing arbitrary location and then used revolve command to get the surface body. But I am not clear how to maintain the constant distance from blade tip (equal to tip clearance).

Any idea ?