Alibre Design

Chapter 7 - Feature Creation10. To taper the extrusion, specify a Draft Angle. To change the draft orientation, select theOutward option.11. Click OK to create the thin wall sweep.Figure 20: Thin Wall Boss Sweep Profile and Path SketchesFigure 21: Resulting Thin Wall Sweep Boss7.7 Helical Boss and Helical CutAlthough the helical boss and helical cut features are different in end result, the steps used to createthem are identical.Helical features, often referred to as helixes, either create or remove material by automaticallysweeping a cross section, represented by a sketch, along a helical path. The helical path isautomatically created by the software and is driven by user specified parameters. Helical featuresare beneficial when modeling springs, internal and external threads, ball screws, worm gears, etc.The following guidelines should be followed when creating helical features:166