The Twist option lets you apply a twist factor to the sketch about its z-axis as it moves along the sweep path. As with the Scale option, the choices are None, Linear, and Variable. Again, Variable applies a nonuniform twist factor based on twist attributes. The location of the attributes determines the variable twist factor. Final touches After setting the options, select the profile and the sweep path.
Additional options appear for defining the reference frame for the sweep.
You can use the default frame of the profile or another datum plane. You can also begin the sweep at the location of the profile or the location of the sweep path. In our example, we use the default frame of the profile and begin at the start of the sweep path. The solid sweep is now complete. To finish up, we ll add a constant fillet on both ends of the variable solid sweep.