Introduction
Design surface model with AutoCAD
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What you should know
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1. Get Set Up
Navigate in 3D space
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Configure 3D workspaces
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Configure options
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Create layer and property filters for 3D modeling
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2. Model the Bicycle Frame
Extrude and patch a surface
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Manipulate the user coordinate system
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Use Offset and regions to generate surfaces
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Sweep a profile along a curved path
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Extrude and trim surfaces
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Revolve profiles
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Extrude a profile along a curved path
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Draft multiple cross sections
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Loft surfaces from cross sections
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Draw cross sections along a spline
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Loft with the Path option
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3. Create the Belt-Tensioning Mechanism
Adjust a lofted object's 3D form
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Sculpt a solid out of watertight surfaces
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Use Boolean operations on solid objects
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Model a dropout to be sandwiched between plates
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Model fasteners
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Adjust and trim the bottom triangle
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Mirror the frame and belt-tensioning components
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4. Build the Drivetrain Components
Position cross-sectional drawings relative to a model
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Remove unwanted volume with Subtract
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Combine surface and solid modeling
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Configure sketches of sprockets
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Fillet edges and array sprocket components
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Create the drive belt as a solid object
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Duplicate and 3D rotate the sprocket
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Revolve, extrude, and subtract objects
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5. Model the Rear Brakes
Subobject editing and filleting edges
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Use region editing techniques
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Model fasteners that hold the rotor on the hub
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Use Boundary to generate a profile
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Create disk brake calipers welded onto the frame
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6. Create the Rear Wheel
Revolve profiles and manipulate layers
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Sweep a spoke along a 3D path
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Use Array and Mirror to fill the rim with spokes
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7. Make the Power Components
Build the drive unit using Extrude and Loft
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Model the cranks using the solid tools and point filters
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Smooth a mesh object
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Tilt up and assemble extruded objects
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Use 3D Align to align a pedal with crank
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8. Model the Front End
Loft cross sections to create a complex form
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Clean up 2D entities in preparation for 3D modeling
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Revolve boundaries to create surfaces
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Copy components from the rear to front axle
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Model the front hub
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Sweep spokes along 3D paths
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Adjust the front axle, acorn nuts, and spacer
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Copy and reposition the front brake calipers
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Copy the rim and tire to the front
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9. Create the Handlebars
Weld objects together with Fillet Edge
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Extract isolines from surfaces to loft new surfaces
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10. Form the Battery Compartment
Sculpt a NURBS surface using its CVs
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Loft between NURBS surfaces
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11. Make the Seat
Extrude and subtract regions
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Loft and revolve profiles
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Create a 3D path from the intersection of two extrusions
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Rebuild NURBS surface to optimize its control vertices
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Move CVs in multiple viewports
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Offset a surface and round its hard edges
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Clean up and visualize the entire bicycle
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Ex_Files_AutoCAD_3D_Surface_Model.zip
(464.2 MB)