Join Scott Onstott for an in-depth discussion in this video Lofting cross sections to create a complex form, part of AutoCAD: 3D Surface Model Design (2014).
- [Voiceover] The next project is to model the fork crown.…That's this piece here.…It's going to bridge the head tube to the forks,…so it's going to start with one circle…and it's gonna separate into two different elements…that hold the forks going around the front tire.…Let's isolate this layer…showing the fork,…and let's go ahead and create a new layer…called 3D fork crown.…
Turn it on, set it current,…and color it red.…Change the UCS to align with the object right here,…then change the UCS again…and rotate it around the x-axis 90 degrees.…Draw a circle right here.…Draw another one down here.…So we have this situation.…Copy this circle over 10 millimeters,…or one centimeter,…do the same thing over here.…
Copy it up one centimeter.…Then move these two circles up 50 millimeters,…or five centimeters up.…I'm planning to have the forks be 10 centimeters apart,…so I'm moving this up 50 millimeters,…or five centimeters up.…The approach I'm going to take…is to model half of the fork crown…and then mirror it to the other side.…
Author
Scott Onstott
Released
11/11/2014- Creating layers for 3D modeling
- Extracting isolines
- Trimming and extending surfaces
- Extruding 2D curves into 3D surfaces
- Lofting cross sections
- Converting solids into surfaces
- Sculpting watertight surfaces into solids
- Sweeping and sculpting
- Revolving boundaries to create surfaces
- Welding objects together with Fillet Edge
- Rebuilding NURBS surfaces
- Offsetting a surface
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome42s
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1. Modeling a Bicycle Frame
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Extracting isolines4m 10s
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Drawing a profile6m 6s
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Trimming surfaces4m 42s
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Revolving profiles3m 8s
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Lofting with the Path option2m 45s
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2. Creating the Belt-Tensioning Mechanism
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Extruding a region2m 32s
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Modeling fasteners5m 30s
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3. Building the Drivetrain Components
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Using Booleans on 2D regions4m 35s
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4. Modeling the Rear Brakes
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5. Creating the Rear Wheel
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Sweeping and sculpting6m 29s
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6. Making the Power Components
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Smoothing a mesh object4m 13s
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Tilting up extruded objects4m 30s
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7. Modeling the Front End
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8. Creating the Handlebars
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9. Making the Seat
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Conclusion
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Next steps15s
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Video: Lofting cross sections to create a complex form