Photo Realistic Rendering

Assembly Of American Chopper

Objective: The objective of this project is used to create a model of diffrent parts of the chopper using solidwork.

Create an assembly of the diffrent parts modeled for the chopper.

Create a photoreastic model of the chopper and render the model using Solidwork photoview 360 or Solidwork visualize.

What Is Part Modelling ?

Modelling in genral means to create a virtual prototype of an item.It can be used for verious purpose.Part modeling you can create a part from a conceptual sketch through solid feature-based modeling,as well as build and modify parts through direct and intuitive graphicle manipulation. Consider the engine of a car.Each part can be modelled separately and then can be assembled together to get the engines final form.This type of modelling is called part modelling.

Parts to be modelded for American chopper: Following parts are modelded in solidwork and assembled together

1. Transmission Belt 2.Kick Stand 3.Front Fender 4.Rear Fender

5.Oil Tank 6.Chain 7.Front wheel 8.Rear Wheel

9.Pedel 10.Front fork 11.Chassis 12.Engine 13.Gas Tank

Now we will see each and Every part one by one in details

1. Transmission Belt: Transmission Belt in the chopper is used to transmit the power from the engine to the gear box

Feature used to create transmission belt : sketch-offset-Extrude-fillet-Apperances

Sketch: sketch is a two dimension reprentation of thebmodel with respect to the plane/view from the outside of the model. In solidworks there are diffrent sketch opition avaible to create a sketch.There are known as entities in solidwork.The folllowing are the entities avaible in solidwork LINE,ARC.SPLINE,CIRCLE,RECTANGLE

Offset:Offset one or more sketch entities,selected model edge or model faces by a specified distance.Foe example,you can Offect sketch entities such as apline or arc,sets of model edges,loopsand so onyou can offect finite lines arcs and spline

Extrude:Extrude is a type of feature avaible in solidwork to convert a 2D sketch into 3D sketch

Fillet:Fillet/Round creats a rounded internal or external face on the part.You can fillet all edges of a faces,selectededgesor edge loops

Procedure followes to create a model of transmission belt[summery]

Inatially new part is opened.Then,the new part is clicked to create a new model.

Before creating the sketch the default plane name are changed as given below

Front Plane- Transmission belt front plane

Top Plane-Transmission belt top plane

Right Planr -Transmission belt Right plane

Then front plane is selected to sketch

The 2D sketch is created in the front plane and dimension relation are given to the sketch to fully define a sketch.While sketching the offset command is used to duplicate the sketch to the some distance.After this process the sketch is closed.Then the extrude command is used to convert a 2D sketch into 3Dmodel.Then the fillet is given to the belt as per the requriment.belt is created.The model is saved with the part name i.e Transmission Belt .

2. Kick Stand:

Is nothing but a componentt for supporting a bicycle or motorcycle when not in use pivoted to the axle in such a way that it can be kicked down below in frame.

Feature used to create kickstand : Sketch-loft-dome-extrude boss-extrude cut-fillet-split-apperances

Loft-the loft feature in solidworks allow you to genrate complex geometry in asingle feature it does this by interpolating surface between various cross-section can be Sketchs,faces or edges in the loft interface these cross-section are considered

Dome-Facess to dome selected one or more planer or non-planer faces.You can apply domes to faces whose centroid lies outside the face.This allow you to apply domes to irregular

Extrude Cut:Extrude cut is another cool feature which helps to remove materials from 3D model.It is just the opposite to the extrude boss/base feature because it cuts a sketch profile while extruding you can cut in bot direction and mainly used for creating holes,channel,slots etc

Split:The solidworks split line tool is used to project an entity (sketch,solid,surface,face,plane or durface entities)

3. Front Fender:

The front fender is a part mounted on the fork above the wheel to protect the rider and the chopper other parts from debries and forigen particle

Feature used: Sketch-Offset Entities-Trim entities-Revolve-Dynamic mirror-Split

Trim entities: Select the trim type based on entities you want to trim or extend all trim type are avaible with 2D sketch and 2D sketch on 3D planes.You want to trim or extend. AllTrim types are available with 2D sketch and 2Dsketches on 3D plane.You can use any of the following trim options:power trim

Revolve:To create a revolve feature create a sketch that contains one or more profile and certerline or edge to use as aaxis around which the feature revolves.click one of the following revolve tools.

Dyanamic mirror:Dyanamic mirror is the importantr tool in solidworks as you sketch the enetities they are mirrored about the pre selected sketch entity.

4. Rear Fender:

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

Features used to create rear fender : Sketch-offsetentities-trim entities-revolve-apperances

Appearances: An appirances define visual properties of the model including colour and texture.Apperances do not affect physical properties which are defined by materials every material is a assigned a default apperances emmulated the look of material

5. Oil tank:

Oil tank is one the part of the chopper.Oil tank is used to store oil required to run the engine.Oil tank is the hollow one the thickness of oil tank is given as 3MM in our chopper

Features used to create oil tank: Sketch-boss extrude-combine-fillet-shell-appearances

Combine:Combine is the type of feature available in solidwork to manually combine two bodies

Shell:The shell defination property manger is used to define the thickness of thin an thick shell elements

6. Chain

Chain is the type of transmission system that is used to transmit power from the engine to rear wheel.Chain is made of stell.The sprocket is used to transmit the power to chain.The sprocket is connected with the shaft with help of key

Features used to create chain :Sketch-trim-fillet-blocks-extrude-pattern-appearances

Blocks:You can make save,edit and insert blocks fro drawing items and sketch entites that you use often such as standard notes,title blocks,label positions and so on you can attach blocks to geometry or to drawing views and you can insert them in to sheet format

How To make blocks :

1.Create a sketch

2.click make block

3.Select the sketch entities you want to make block for block entities

4.click

5.Repeat step 2-4 for each of the remaining sketch entities

6.With the sketch in edit mode at the necesary relations

7.Save the part

Patterns: The curve driven patterrn tool allow you to create pattern along a planer or 3D curve you can base your pattern on an open curve such as circle.In the chain part curve driven pattern is used.

7. Pedal:

Pedal is the external part attach to the the chassis the pedal is used to the placed the lake on the top of that.To give comfort to the rider pedel is udes

Feature used to create pedel:Sketch-extrude-fillet-linear pattern-dome-chamfer-appaerances

Chamfer: A Cut on the edge or corner of somethings that makes its slope slightly rather than being perfectly square.

Linear pattern:Linear pattern is also more like a circular pattern.The features/bodies are pattern linearly.Pattern is kind tool like array available in autocad.

8.Front wheel

A wheel is a circular block made of the steel/alloy material.On the top of the wheel the tyre is covered. The tyre is made of rubber and it has thin wires within it.

Features used to create front wheel :Sketch-revolve-trim-fillet entities-boss extrude-revolve cut-linear pattern-chamfer-fillet feture-cut extrude-circular pattern-appearances

Circular Pattern: Circular pattern is used to create a pattern of the sporks and the pattern the pattern available in tyre.Also it used to create holes in the disc of the front wheel.The parrent bodies/feature are used to create a different no of instances req to create the pattern circularly

9. Rear Wheel:

Circular object that revolves on an axle and is fixed below a vehicle or other object to enable it to move easily over the ground.The disc and sprocket are attached with a rear wheel.Chain is the positive drive compare to the belt it will more efficient and losses in the chain will be less comparitively.

Features used to create rear wheel:sketch-revolve-trim-fillet entities-bossextrude-planes-revolve cut-linear pattern-chamfer-fillet features-cut extrude-circular pattern-appearances

10.Front Fork:

Most motor cycle today used telescopic forks for the front sus[pension.The fork can be most easily understud as simply large hydraulic shock absorbers with internal coils springs.They allow the front wheel to react to imperfection in the road while isolating the rest of motorcycle from that motion.

Feature used to create front fork:Sketch-extrude-trim-revolve-split-plane-convert entities-move/copy body-dome-mirror-combine-curve-sweep-appearances

Move/copy body: Move/copy body is used to move/copy body from one place to another place in the fork

Mirror: By using mirror faces with a mid plane selected only a chossen faces within the revolve will be mirror.Mirroring body can be used wheather in a single or multi body part and allows you to select solid geometry instead of the features and faces in the body.I n the fork part the one part of the fork is created and other part is mirrored.Then the parts are manually combined.

Project Curve:Project curve is the kind of 3D curve which is projected on the besis of the two diffrent 2D sketches

Sweep:With the sweep feature we can create a shape by moving a 2D sketch profile along a 2D or 3D sketch part.

11. Chassis:

A chassis or frame forms its skeleten all the components of a motorcycle like a suspension,wheels,fueltank,seats,handlebars etc are attached to base structure which lends a motorcycle its strength and ability to handle well

Features used to create Chassis:Sketch-offset-convertentities-project curve-trim-plane-sweep-split-revolve-cut extrude-fillet-combine-apperance

12.Engine:

Engine is the prime mover for the bike.The engine convert a chemical energy into heat energy and then the heat energy is converted into mechanicle work.The mechanicle work in the engine is rotaional motion.This rotaion is converted into whell with the use of chain and sprocket through the gear box and clutch.

Features used to create engine:Sketch-convert entities-trim-revolve-boss extrude-cut extrude-offset-dome-fillet-project curve-composite curve-sweep-mirror-circular pattern-split

13. Gas Tank:

Gas tank are used to store the gas.To give the gas to the engine whenever its required.

Features used to create a gas tank:Sketch-trim-project curve-convert entities-sweep surface-loft surface-fill surface-surface trim-surface neat-sweep cut-fillet apperances

Assembly of Chopper:

Intially the chassis part is intersect in the assembly by using inser parts in the opiton after that the part is insterted in the assembly envirment and click ok to fix the chassis after that the other part of the chopper are intersect into the assembly and given possible mate condition.

Feature used to assemble chopper:Mates-insert part

Mates: Mates create geometric relation ship between assembly components.As we add mates we define allowable directions of linear or rotational motion of the components we can move acomponents within its degree of freedom,visualizing the assemblies bahiour

Photo Realistic Rendering:

Rendering is the process of creating realastic image of the photo realstic model with the envirment rendering has been done in two ways in solidwork(Photoview360/solidworkvisulize).In the photo relastic model some of the mate condition and position are change to render realistic model,Then the photo realistic model is render into realistic image with diffrent view

Conclusion:

The part of the chopper are modeled using most of the solid modeling tools and solidworks.The parts are inserted into the assembly environment and the chopper is assembled.Getting used to with assembly module of solidworks.The realistic image was render with the use of photo view360 and solidwork visualize.