Page 27 Modeling a Mountain Bike

Revolve the screw curve shown below.

Loft the curves shown below in the order described. Hit A for automatic before Enter. Use ‘Straight sections’ for lofting style.

Loft the curves shown below with default options. When done, select the right curve and patch it with 1 span in each direction. Join the lofted surface with the patch surface.

Loft the curves shown below and cap the resulting surface.

Make a ‘Sweep 1 Rail’ with the curves in the two figures below.

Select the curve shown below and go ‘Surface/Extrude/Straight. Enter a value of 3.2.

Revolve the curve shown in the two figures below.

Rotate the resulting surface from the curve below so it fits around the nearby pipe.