As you layout TSpline faces and edges you might introduce some waviness. This makes sliding edges and moving edge loops harder than need be and can cause uneven surfaces. One tip to creating
Here is a detailed description on how to move distributed designs. This will only work for the 3D data. Start Fusion and in the data panel find the item you want to export.
Sometimes I’m so eager to get started on a design that I create a sketch and place it on the origin and get right too it. Once I’m ready to extrude