MODELING OF AMERICAN CHOPPER IN SOLIDWORKS

 

Objectives-

The main objectives of this project are:

• To make the individual parts of Chopper using solidworks.
• To assembled all the individual parts into chopper
• To know the Render, Decals, Scene, Lights, Camera and 360 drgree view etc

To create photorealistic model and render it using photoview 360 and solidworks visualize

Introduction-

Solidworks is one of the famous modelling software avaliable today this software is mainly used to model 3D parts using 2D sketch and Drafting. It also has the option to specify the material and look of the model which we created.It has other ADD-in features like photoview360 which helps in rendering of the final model to make it look photo realistic. In this project we learnt about detailed design of Americal chopper parts and assembly them and rendering the final after assembly.

 American Chopper

• MODELLING OF INDIVIDUAL PARTS

1. Kickstand
2. Fenders
3. Engine
4. Chassis
5. Chain 
6. Wheel 
7. Fork
8. Oil Tank 
9. Gas Tank 

• ASSEMBLY

1. Mates such as Coincidence
2. Concentric
3. Tangent
4. Paralle
5. Distance
6. Angular
7. Symmetric
8. Width i.e.

• RENDERING

1. Photoview 360
2. Solidworks visualize
3. Decals
4. Scene
5. Lights
6. Camera i.e.

Details of SOLIDWORKS Features Used -

Sketch

Following commands are used to create the 2D sketch:-

• Line
• Circle
• Arc
• Spline
• Rectangle
• Polygon
• Fillet
• Ellipse

(Some sketch entities like line, circle, spline, arc, rectangle, etc. contain more options)

• Offset

 The offset command create parallel line, curve, and concentric circles through a point or at a specified distance.

• Trim and extend entity

The trim command is used to remove the selected extra line/parts of an object. And the extend command is used to extend the selected boundaries or edges.

• Covert entity

It is used to project the last sketch in to the current sketch plane.

• Mirror

Mirror is used to create remaining half of a sketch/ copy of selected sketch about a specified line.

• Linear sketch pattern

It is used to create multiple instance of feature that can uniformly specified along one or two linear paths.

• Smart dimension

It allows you to dimension the part which is created.

• Dynamic mirror

Select the dynamic mirror feature to mirror pre-existing sketch. First select line, centerline, and linear model edge about which to mirror, and then create a sketch to mirror.

Extruded boss/base:-

It is used to convert 2D sketch into 3D model in one or both directions from sketch plane. Here you have to specify direction up to surface, vertex, value, body from sketch plane.

Extrude cut

It helps to remove material from the created 3D model by using 2D sketch. It is opposite of extrude boss/bass feature. Here also you have to specify direction up to surface, vertex, value, body from sketch plane.

 Revolved boss/base:

It is used to revolve a 2D sketch (one or more profile) along a axis, line or centerline.

 Revolved cut:

This feature is just opposite of revolve boss/base.  The revolved cut allows to cut a profile around an axis, plane, and line to create complex geometry.

 Swept Boss/Base

A swept feature is used to create a solid body by moving a closed entity/ profile along specified sketch/path. In order to complete a feature, two sketches are necessary. One will be the closed profile and second will be the path.

 Swept Cut

A swept cut feature allows to cut a 3D model by sweeping a closed sketch profile along a specified path sketch. The path sketch will control the direction of cut. Profile sketch should be connected to the path sketch.

 Lofted boss/base

The loft feature creates a solid body by making transition between multiple profile and guide curve. It helps to generate complex geometry in one feature.

 Lofted cut

The loft cut is allows to remove material between two sketch profiles. Make sure that selections are must under the profile selection box and not the guide curve selection box

 Fillet

It is used to create a rounded shapes at internally or externally faces of the part. There are different types of fillet:

• Constant Size fillet
• Multiple radius fillet
• Round corner fillet
• Setback fillet
• Variable size fillet
• Face fillet
• Full round fillet
• Asymmetric fillet

Chamfer

This feature is creates a cut on selected edge, face or a vertex. Types of chamfer:-

• Angle –Distance- Enter the values of distance and angle in the chamfer parameter box.
• Distance- Distance- Enter the values for both distances in the chamfer parameter box or on the side of selected edges.
• A vertex- Enter values for the three distances on each side of selected vertex.

 Patterns

• Linear pattern – To create multiple instances of one or more feature to that can space uniformly along specified path, plane.
• Circular pattern – To create multiple instances of one or more feature to that can space uniformly along an axis, line.
• Curve Driven Pattern – To Curve creates multiple instance of one or more feature to that can space uniformly along 3D curve (open or closed curve).

 Shell

It is used to define the thickness of wall, hollows out a part, leaves open the selected faces. Shell may be with uniform or multiple thickness faces.

 Dome

Dome features is used to one or more dome on the same model in one feature.

• Face to dome - Used to apply dome to faces whose centroid lies outside the face.
• Elliptical Dome -Used to apply dome for cylindrical/ conical model.

Path- Insert>Feature>Dome

Split

Split feature is used to create multiple body or surfaces from one part/ surface. In the trim tool box we need to select sketch and click on cut part.  In this feature we can create multiple body or consume cut bodies.

Path- Insert>Feature>Split

 Combine

There are three different options are available to use combine feature.

• Add-To merge multiple bodies together into one.
• Subtract-To remove multiple bodies from main body.
• Common- To add two bodies together and keep the area that is common to them.

Path- Insert>Feature>Combine

 Feature description for surface Modelling:

Surface modelling is used to build out a represent of solid objects exterior and it’s a contours. Following feature are used in design of seat, gas tank of chopper.

 Swept Surface

The surface is created by sweep profile and sweep path.

 Lofted Surface

The surfaces are generated by multiple 3D curves / existing edges. There should be a tangency between the selected curve/edges.

 Boundary Surface

The boundary surface creates surfaces that can be tangent or curvature continuous in both direction. In most of cases, we get high quality result as compare to lofted surface.

 Filled Surface

The feature create a surface to fill the gap in a model.

 Surface Trim

It is used to cut away material from a surface.

 Extend Surface

This feature extend the surface by selecting as edge, multiple edges or a face.

 Surface Knit

The surface knit feature combine multiple faces and surfaces into one. Surface edges must be adjacent and not overlapping.

 Appearance

An appearance is define the visual properties of model which include color and texture. We can apply appearance to the individually to the complete model / one or more face /edges .It does not affect on physical property which are defined by material.

American chopper parts and Details:-

 1.Transmission Belt:-

It is made up of flexible material and used to transmit power efficiently from a motor to drive shaft/ pulley or to track relative movement. Sometimes it’s called as drive belts, gear belts or automotive belts.

                         

                                                                                             Fig.1 Transmission Belt

2.Kickstand:-

A kickstand is a supporting structure provide to a bike which flips down from the frame and makes contact with ground when stationary. It is also known as side stand.

                                                    Fig.2 Kickstand

                                               

3.Front fender:-

The Front fender is an automobile part mounted on the fork above the wheel. Its purpose is to protect rider and bicycle from mud, sand, or liquids.

 

                                                   Fig.3 Front Fender

 4.Rear fender:-

Application of rear fender is same as front fender. The rear fender is mounted on rear part of chassis and above the rear wheel.

                                                     Fig. 4 Rear Fender

 

5.Oil Tank:-

The oil tank is used to store the lubricating oil which is required to run the engine. Oil is generally used to avoid wear and tear due to extreme heat. It is hollow from inside.

                                                Fig. 5 Oil Tank

6.CHAIN:-

Chains are used as the part of the drive train to transmit the motor power to the back wheel.

                                                      Fig. 6 Chain

7.Pedal:-

The pedal is the part of a chopper and it is used to rest the leg on top of that.

                                                             Fig.7 Pedal

8.Front wheel:-

The front wheel is a rolling part of chopper situated in front side. The part guide the vehicle as per movement of front fork.  Wheel contains – Caliper, Rim, Rotor and tire. At the outer side of wheel, rubber material is attached called as tire.

                                                 Fig.8 Front Wheel

9.Rear Wheel:-

The rear wheel is a rolling part of chopper situated in rear side. The part revolves on an axle.  The wheel contains – Caliper, Rim, Rotor, Disc, Sprocket and tire. Chain is connected between engine and sprocket of rear wheel.

                                                           Fig. 9 Rear Wheel

10. Fork:-

A chopper fork connects a front wheel and axle to its chassis. It guide the complete vehicle. Fork contains – Handles, brake, axle, lights, etc.

                                               Fig. 10 Fork

11.Chassis:-

The Chassis is also called as frame. The components like front fork, gear box, engine, gas tank, wheels, etc are attached to it. It mostly consist of hollow tube.

                                                             Fig. 11 Chassis

12.Engine:-

The engine is main part of the vehicle, where power is generated by burning of fuel and later transmit the rotational motion to the wheel through chain and sprocket.

                                                                        Fig.12 Engine

13.Gas Tank:-

The gas tank or fuel tank is used to store the fuel and it is required to run the engine.

                                               Fig. 13 Gas Tank

Assembly of American chopper

• Insert one by one the all individual part:-

1.  Chassis
2. Engine
3. Pedal
4. Kickstand
5. Transmission Belt
6. Oil Tank
7. Rear Wheel
8. Rear Fender
9. Chain
10. Gas Tank
11. Front Fork
12. Front Wheel
13. Front Fender

then apply the mates and fully defined

Features used to create assembly-

• Insert Components
• Mates
• Mirror
• Save the assembly- American Chopper

Decals used for American Chopper

• We can apply decals to a part faces, rather than to an assembly because we cannot select specific faces.
• Path- Click PhotoView 360 > Edit Decal,

                           Fig. 15 Decals on Gas Tank, Rear Fender, Oil Tank resp.

Rendering for American Chopper

Rendering is process of creating realistic images of the model with environment.

In rendering various aspects such as camera, light, environment, background scene, appearance, etc. are taken in consideration before final rendering. To check the all thing preview rendering option is used.

  There are two ways of rendering in SOLIDWORKS.

1. Photoview 360
2. Solidworks Visualize

In photorealistic model, some of the mates and conditions are changed to render realistic model. So we have to change as per different view before rendering.

Rendered images in Camera, Front, Left, Top, and Isometric View

                                              

 Conclusion:-

• The parts are sketched and modelled in the SOLDWORKS.
• The modelled parts are assembled with possible mates in to the main assembly of American chopper.
• The decals are applied to faces of parts.
• The realistic images was rendered with use of both ways “Photoview 360 and Solidworks Visualize.