1. Sketch 76.2 mm circle and extrude to 2.032 mm in front plane.
2. Sketch 15.24 mm circle on top extruded face and extrude to 38.1 mm.
3. Sketch fin profile at extruded face as shown and extruded to 15.24 mm.
4. Add Plne1
with 203.2 mm offset from Front Plane and Plane2 with 21.59 mm from plane1.
5. Insert Sketch on Plane1, Select all edges to extruded fin and convert it to entities.
6. Insert another sketch on Plane2, as shown.
7. Sketch two curve lines using 3D Sketch tool, as shown in figure.
8. Click Lofted Boss/Base,
Select profile Sketch5 and sketch6
and for guide curves select 3D sketch1 and 3D sketch2
O.K.
View temporary axis Tools>Temporary axes. Select center axis, 360 degree, #8 numbers of pattern, equal spacing, O.K.
Done
2. Sketch 15.24 mm circle on top extruded face and extrude to 38.1 mm.
3. Sketch fin profile at extruded face as shown and extruded to 15.24 mm.
4. Add Plne1
with 203.2 mm offset from Front Plane and Plane2 with 21.59 mm from plane1.
5. Insert Sketch on Plane1, Select all edges to extruded fin and convert it to entities.
6. Insert another sketch on Plane2, as shown.
7. Sketch two curve lines using 3D Sketch tool, as shown in figure.
8. Click Lofted Boss/Base,
Select profile Sketch5 and sketch6
and for guide curves select 3D sketch1 and 3D sketch2
O.K.
View temporary axis Tools>Temporary axes. Select center axis, 360 degree, #8 numbers of pattern, equal spacing, O.K.
Done
