Photo Realistic Rendering
MODELING, ASSEMBLY AND PHOTO REALISTIC RENDERING OF AMERICAN CHOPPER
OBJECTIVE
- To design the individual parts of American chopper with required dimensions in SOLIDWORKS.
- To carryout assembly of designed parts using suitable relations of all part models in SOLIDWORKS.
- To add Decals, Lights, Camera, Appearance and start rendering the assembled model.
- Gain knowledge about Photoview 360 and SOLIDWORKS Visualize rendering tools, and obtain realistic view of the model.
INTRODUCTION
In this project, first we get to know user interface of solidworks and how to customize shortcuts in solidworks.
Then with the help of commands we draw the sketches of individual parts of chopper using the given dimensions.
Convert those 2D sketches to 3D model in solidworks. After designing all individual parts we carryout assembly
of the chopper. Next step is to add decals, lights, camera and do rendering in solidworks. To get the realistic view
of the designed model we use Photoview 360 and SOLIDWORKS Visualize rendering tools. Here we add suitable
environment, backplates, appearance and set the image quality for getting realistic view.
The various parts of American Chopper are as follows:
- Transmission Belt
- Kickstand
- Front Fender
- Rear Fender
- Chain
- Oil Tank
- Pedal
- Front Wheel
- Rear Wheel
- Front Fork
- Chassis
- Engine
- Gas Tank
Design Methodology
In this project we used bottom-up approach : First we design the individual components and then assemble all the
components to make a complete product.
Let us discuss the features which are used while designing the individual components of American chopper.
Extruded Boss
It is the basic feature in SOLIDWORKS. To use this feature, first we need to do a fully defined 2D sketch and
then convert the 2D sketch into a solid body. After choosing the extruded boss option a property manager
window pops-up. Here we add dimensions in the required directions and also we need to choose the start
and end point of the feature. Blind, midplane, from the vertex are some of the available options to use.
Fillet
Some of the 3D shapes have sharp edges which need to be given smoothness. For this purpose we add fillets.
By using this feature the edges get some roundness with appropriate radius. By this we can delete the unwanted
material from the solid body and give it a nice appearance. Constant size, variable size, face and full round fillets
are the types of fillets used.
Revolved Boss
It is used to create solid 3D model around an axis. The sketch can be revolved around an axis to add materials
to it. Hollow cylinders, hollow spheres, solid spheres can be created using this feature. We need to select the
axis of rotation and give it a direction to come into existence.
Extrude Cut
Extrude cut feature removes materials from the part. We can use this tool by projecting a sketched section
Normal to the sketching plane. Both open and closed sections can be used to create a cut. Removing material
using a closed section creates a slot.
Shell
The shell feature hollows out a part, leaves open faces which are selected, and creates thin walled features on
the remaining faces. To create a closed, hollow model we need to simply do not select any face on the model.
Linear and circular pattern
Linear patterns are used to create multiple instances of one or more featues that can be spaced uniformly along
one or two linear paths.
Circular patterns are used to create multiple instances of one or more features that can be spaced uniformly
around an axis.
Mirror
Creates a copy of a feature mirrored about a face or a plane. Select the feature or the faces that comprise the
feature. Bodies to mirror. Select a body in a single model or multibody part to create a mirror entity. This gives
a symmetrical part without really drawing a sketch of it.
Projected Curve
The project curve feature is to create a 3D curve. We can create multiple closed or open contour projected curves
from a single sketch. Create two 2D curves using spline tool on different planes and the project a 3D curve.
The resulting yellow color curve is the projected ones.
Chamfer
The chamfer tool creates a beveled feature on the selected edges, faces, or a vertex. Angle-distance, Distance-
Distance, Vertex, Offset-face and face-face are the types of chamfers.
Sweep
This feature helps sweep a closed profile along a closed or open path.
Mate
Mate creates geometric relationship between assembly and component. When we add mates, it defines the
allowable direction of linear or rotational motion of component within its degree of freedom, visualizing the
assembly’s behaviour.
The feature includes:
i} Coincident mate
ii} Concentric mate
iii} Tangent
iv} Angular mate
Offset
Creates concentric circles, parallel lines, and parallel curves. We can offset an object at a specified distance or
through a point. Offset entities takes a copy of an existing geometry and copies it at an offset.
Now that we have discussed the features used in SOLIDWORKS, we’ll see the application of those features while
designing the individual components.
1. Transmission Belt :
Used to transmit power from one end to another end of the pulley.
Features used
- Sketch - Line
- Extruded Boss
- Offset
- Fillet
- Appearance
- Kickstand :
A supporting mechanism which is used to prevent the chopper lean on ground and
makes upright.
Features used
- Sketch – Ellipse, Spline, Centre Rectangle
- Extruded Boss
- Fillet
- Lofted Boss
- Split
- Front Fender :
Fender is a frame like structure which is laying over a wheel used to prevent the
mud, liquids, slippery things which will be flown into the air while rotating at high speed also prevemts
the small stones over the rider.
Features used
- Sketch – 3 point arc, spline, dynamic mirror, extend entities, trim entities
- Revolved Boss
- Split
- Fillet
- Dome
- Extrude cut
- Rear Fender :
Fender is a frame like structure which is laying over a wheel used to prevent the
mud, liquids, slippery things which will be flown into the air while rotating at high speed also prevemts
the small stones over the rider.
Features used
- Sketch – 3 point arc, spline, dynamic mirror, extend entities, trim entities
- Revolved Boss
- Split
- Fillet
- Shell
- Chain :
Chain is used to transmit power from engine to sprocket at rear wheel for acceleration of vehicle.
Features used
- Sketch – Circle, 3 point arc, blocks, trim
- Extrude Boss
- Fillet
- Curve (Driven pattern)
- Oil Tank :
To maintain the internal temperature at cylindrical blocks because of ignition for which the
oil stored in this tank.
Features used
- Sketch – Arc, spline, dynamic mirror, line
- Extrude Boss
- Fillet
- Shell
- Combine
- Pedal :
Used to make a support for the rider’s foot and prevent the foot from contact to the road.
Features used
- Sketch – Line, 3 point arc, offset, fillet
- Extrude Boss
- Fillet
- Revolved Boss
- Dome
- Chamfer
- Linear pattern
- Front wheel :
Wheels are made to cope with radial and axial forces. They also provide a way of mounting
other critical components such as the brakes, final drive and suspension.
Wheel includes : Rim, Rotor, Caliper, Tyre
Features used
- Sketch – Line, 3 point arc, fillet, spline, trim, extend entities
- Extrude Boss
- Fillet
- Revolved Boss
- Extrude cut
- Linear pattern
- Circular pattern
- Chamfer
- Revolved cut
- Rear wheel :
Wheels are made to cope with radial and axial forces. They also provide a way of mounting
other critical components such as the brakes, final drive and suspension.
Wheel includes : Rim, Rotor, Caliper, Tyre, Sprocket
Features used
- Sketch – Line, 3 point arc, fillet, spline, trim, extend entities
- Extrude Boss
- Fillet
- Revolved Boss
- Extrude cut
- Linear pattern
- Circular pattern
- Chamfer
- Revolved cut
- Front Fork :
Consists of two narrow tubes acting as shock absorbers along with the axis of front
wheel and another end is fixed with handle bar to control the direction of the vehicle.
It also consists headlight.
Features used
- Sketch – Line, spline, 3 point arc, projected curve, convert entities
- Revolved Boss
- Dome
- Extrude Boss
- Split
- Combine
- Mirror
- Sweep
- Chassis :
The main frame where all the components are assembled.
Features used
- Sketch - Line, spline, circle, projected curve, convert entities
- Revolved Boss
- Dome
- Extrude Boss
- Split
- Combine
- Mirror
- Sweep
- Fillet
- Chamfer
- Engine :
It is the main part which transmits power to rotate the rear wheel through chain.
Features used
- Sketch - Line, fillet, 3 point arc, offset, projected curve, convert entities, trim, composite curve
- Revolved Boss
- Dome
- Extrude Boss
- Split
- Combine
- Mirror
- Sweep
- Fillet
- Chamfer
- Extrude cut
- Linear pattern
- Circular pattern
- Gas Tank :
Used to store the fuel which is suplied to the engine.
Features used
- Sketch - Line, 3 point arc, mirror, projected curve, convert entities
- Sweep
- Loft surface
- Knit
- Sweep cut
- Shell
- Fillet
- Combine
Assembly
- Now that we have designed all the individual components of the American chopper, we need to
assemle them by creating a new assembly file, importing all the parts which are fully modelled.
- In assembly, mate feature is most commonly used to locate and relate the parts with one another.
Standard mates include angle, coincident, concentric, distance, lock, parallel, perpendicular and
tangent mates.
Advance mates include limit, linear, path, width mates.
- Chassis is main component which is inserted first and then fixed. The other components are inserted
one by one. By using planes for reference and giving the mate feature once the part gets fixed
it floats with the main frame.
- Some parts need to be modified during assembly to make it look smooth.
Decals is a pattern or an image that can be added on any surface to customize it. In this project
decals are added to the Gas Tank, Oil Tank and Rear Fender to get better appearance
RENDERING IMAGES :
Photo Realistic Rendering
- In this project we get to know about Photoview 360 and SOLIDWORKS Visualize rendering tools,
and obtain realistic view of the model.
- PhotoView 360 is a SOLIDWORKS add-in that produces photo-realistic renderings of SOLIDWORKS
models. The rendered image incorporates the appearances, lighting, scene, and decals included
with the model.
- SOLIDWORKS Visualize is the fastest and easiest way to produce photo quality images by bringing
in the chopper model. It generates photo quality image, interactive animations, and 360 degree
spin to effectively communicate the most complex design details.
- In this we can set scenes,backplates, environment, lights and cameras to get the realistic view and obtain the
rendered images.
