Photo Realistic Rendering

MODELING AND RENDERING OF THE AMERICAN CHOPPER

Objective:
3D modeling of all American chopper parts and assemble them using SolidWorks to fully define the resultant assembly. Once the assembly is complete, render it using Photo view 360.

Introduction:
The American chopper is designed and developed in a step-by-step process.
• Creating concept sketches and choosing the best design based on the requirements.
• Modelling the components with appropriate dimensions.
• Providing realistic appearances.
• Assembling the components.
• Rendering of the assembled model.
The different components of the motorcycle that are to be dealt with are:
• Chain and transmission belt.
• Engine and exhaust.
• Chassis.
• Front fork with hand grips.
• Front and rear fender.
• Front and rear wheel.
• Fuel and oil tank.
• Foot pedal and kick-stand.
After modeling the part components, they must be assembled such that the assembly is fully defined. The photo-realistic rendering of the American Chopper gives it a realistic view, which can be used to present the model to clients/customers.

Design Methodology:
1. Coming up with a conceptual design of the American Chopper model.
2. 3D modeling of different parts of the American Chopper model.
3. Assembling the 3D parts to form a single entity.
4. Remodeling the parts if the parts are overlapping/intersecting with each other.
5. Photorealistic rendering of the resultant assembly.

Design methodology flowchart:

Tools/features used while designing:
1. Sketch: Used to design/draw over any surface or plane. Represented on the feature tree
2. Extrude: Converts any 2D sketch into a solid model body.
3. Offset: Converts a line or chain of a sketch by having a difference between them by a certain amount.
4. Extrude Cut: Creates a sketch on a body to remove out unnecessary details.
5. Trim Entities: Used to remove unwanted sketch lines created in a sketch
6. Revolve: Creates a solid revolve around a particular axis.
7. Fillet: Adds rounded internal/external face along one or more edges on a solid or surface feature.
8. Loft: This feature creates a solid body regardless of the sketch and follows the path.
9. Dome: Adds a dome-shaped structure to a particular face.
10. Shell: Adds a shell feature to a particular body, adding hollowness to it. Respective of its size.
11. Combine: Adds the two bodies to be merged to create a single solid body.
12. Linear Pattern: Creates a single or one of its kind to make copies of its feature with a given dimension to move across over the selected body linearly.
13. Intersection Curve: Used to convert sketch on a curved surface concerning its face.
14. Mirror: Converts sketch entities/bodies mirrored onto an opposite plane.
15. Chamfer: Adds a cut to the body from a particular edge up to a distance.
16. Circular Pattern: Makes copies of its features and move along circularly along the selected body.
17. Project Curve: Creates a projected curve concerning the sketches that tend to project out to the planes
18. Sweep: Creates a feature by sweeping an open and closed profile along an open or closed path
19. Composite Curve: Combines the two projected curves to create a composite curve
20. Loft Surface: Creates a lofted surface of profiles.
21. Draft: To narrow down on a solid body along a certain path.
22. Convert entities: Creates sketch onto any projected plane or surface.
23. Knit: Knits surfaces together with the required tolerances added to make sure it leaves no gap between the surfaces

Part modeling:
Transmission Belt:

The transmission Belt is used to drive power from engine to gearbox.
Features: Boss-Extrude, fillet

Kick Stand:

Kick Stand is used to support the chopper.
Features: Loft, Dome, Cut-Extrude, split, Boss-Extrude, Fillet.

Front Fender:

Its primary purpose is to prevent sand, mud, rocks, liquids, and other roadside from being thrown into the air by the rotating tire. And it is mounted above the Front Wheel.
Features: Revolve, Split, Fillet.

Rear Fender:

The use of the Rear Fender is the same as the Front Fender. It is mounted above the Rear Wheel.
Features: Revolve, Split, Fillet, Shell.

Chain:

Transfers the Power from the engine to the drive wheel of a bike, thus propelling it.
Features: Boss-Extrude, Fillet, Curve Driven Pattern, Mirror.

Oil Tank:

It is used to store the oil required to run the Engine.
Features: Boss-Extrude, Combine, Fillet, Shell.

Pedal:

This is the part where the rider rests his/her foot while riding the bike, it gives comfort and balance to the rider.
Features: Boss-Extrude, Revolve, Dome, Chamfer, Linear Pattern, Fillet.

Front Wheel:

It includes the solid bodies Rim, Rotor, Calliper, and Tyre.
Features: Revolve, Boss-Extrude, Cut-Extrude, Cut-Revolve, Circular Pattern, Fillet, Chamfer, Combine

Rear Wheel:

It includes solid bodies Rim, Sprocket, Rotor, Calliper, and Tyre.
Features: Revolve, Boss-Extrude, Cut-Extrude, Cut-Revolve, Circular Pattern, Fillet, Chamfer, Combine

Front Fork:

Connects a front wheel and axle to its Chassis, typically via a yoke, also known as a triple clamp, which consists of an upper yoke joined to a lower yoke via a steering stem, a shaft that runs through the steering head, creating the steering axis.
Features: Revolve, Boss-Extrude, Cut-Extrude, Dome, Cut Revolve, Sweep, Fillet, Mirror, Combine.

Chassis:

All the components of a motorcycle, like the suspension, wheels, fuel tank, seats, handlebars, etc, are attached to this base structure which lends a motorcycle its strength and ability to handle well.
Features: Sweep, Boss-Extrude, Dome, Revolve, Mirror, Split, Chamfer, Fillet, Mirror, Combine.

Engine:


It powers a motorcycle. It converts Chemical Energy to Mechanical Energy the rotatory motion of the engine is transferred to the Rear Wheel through Chain and Sprocket.
Features: Boss-Extrude, Revolve, Dome, Cut-Extrude, Chamfer, Circular Pattern, Linear Pattern, Split, Mirror, Swept Boss, Combine, Fillet.

Gas Tank:

The fuel is stored in the gas tank and is supplied to the engine as per requirement. The fuel is injected into the combustion chamber via fuel injectors.
Features: Surface Sweep, Surface Trim, Surface Loft, Boundary Surface, Mirror, Surface Knit, Surface Extrude, Swept Cut, Fillet, Shell.

Assembly:
Mates used:
1. Coincident.
2. Distance.
3. Concentric.
4. Parallel.
5. Limit Angle.
6. Width.

Camera view:

Isometric view:

Front view:

Rear view:

Top view:

Side view:

Photorealistic rendering:
View1:

View2:

View3:

View4:

View5:

Conclusion:
The 3D modeling of the American Chopper was done using SolidWorks, and Photo-realistic rendering was done using Photo-view 360. During this project, a lot of new concepts were learned to speed up the designing process and get the desired result. It is also understood that designing is an iterative process. The part configuration, assembly, layout, etc may be required to be modified to come to a final design layout.