Challenge

Photo Realistic Rendering

SSrota Das9 Jul 2022

Report on Assembly of American Chopper Model:

Objective:

The objective of the project is to model an American Chopper using a CAD software SolidWorks and to render with SolidWorks Visualize to create photo realistic view of it.

Introduction:

This project explains the designing of American Chopper using SolidWorks Sketch and modelling the parts and lastly give the photo realistic view.

Steps:

Part Modelling

Assembly

Rendering

PART MODELLING:

2D sketch of the part is sketched in the SolidWorks and it is converted into 3D part using heads up feature tab.

Used Feature:

Boss Extrude: To expand the object in 3D modelling this is used.

Fillet: To make internal and external edges and to avoid the sharp corners.

Chamfer: To make internal and external edges and to avoid the sharp corner to get smoother surface finish and tapered face.

Extrude Cut: It is used to cut or remove the 3D object in linear path according to the sketch.

Lofted Boss: It is used for complex geometry by interpolating between cross sections of a model.

Split: Split tool is used to split single solid part into two solid parts. It is used to project an entity on other surfaces of curved or planer faces.

Shell: shell feature is used to make hollow space in solid part by selecting outer wall of the solid part and so removes the inner part. It is also used to reduce the specific thickness.

Dome: It is used to make dome shaped feature.

Combine: Combine tool is used to make integration of two solid parts which intersect each other as same solid part.

Linear Pattern: To create different number of instances in linear basis.

Curve Driven Pattern: It is used to make any pattern which followed by the curve is sketched before.

Circular Driven Pattern: It is used to make 3D feature into circular pattern according to number of instances.

Revolve boss base: It is used to make cylindrical or circular 3D extrude along with a given refence axis as per drawn sketch.

Revolve Cut: It is used to cut of cylindrical round surface.

Move or Copy: It is used to move or copy of the 3D body to one place to another.

Mirror: It is used to mirror a feature or body using by reference plane.

Sweep: This feature is used to make sweep any kind of fully sketch along with path.

Swept Cut: This is used to cut along with sweep path.

Projective Curve: Projection of curve is a 3D curve which is projected on the basis of the two different 2D curve in different plane.

Block: For any drawing views, we can make individual sketch and edit label position, and insert blocks , then attach the block in proper position of the model.

Trim: It is used to trim unwanted surfaces or lines in the sketch.

Knit Surface: It is used to knit the surfaces in the free edges or open edges of the surfaces together.

Loft Surface: It is used to make loft in between two profiles along with guide path.

Boundary Surface: It is used to make a surface in between two finished surface.

Appearances: It is define the visual properties which are defined by materials by colour and texture.

Assembly:

It is referred to put the all components together in an assembly line. It is to create a complete product that performs an intended function. In assembly section we do mate feature and rebuild the document which is automatically reflected in the assembly.

The vast majority of the designed assemblies consist of two modelling strategies, bottom-up technique and top down technique.

Standard mates include angle, coincident, concentric, distance, lock, parallel, perpendicular and tangent mates. Advance mates include limit, linear, path, width mates.

RENDERING:

It is image synthesis is the automatic process of generating a photorealistic or non photorealistic image from 2D or 3D model using a computer program.

Major Categories in Rendering:

Real time Rendering

Pre Rendering

Software used:

Photoview 360

Solidworks Visualize

Designed components:

Transmission Belt

Kick Stand

Front Fender

Rear Fender

Chain

Oil Tank

Pedal

Front wheel

Rear Wheel

Chasis

Engine

Gas Tank

Transmission Belt:

Feature Used:

Offset

Extrude Boss

Fillet

Appearances

KickStand:

Feature Used:

Lofted boss

Dome

Extrude Cut

Extrude Boss

Fillets

Split

Apperances

An opening of kickstand is kept for it to fix to the chassis and the Dome is applied at the ends of the kickstand.

Rear Fender:

Feature Used:

Offset Entities

Split

Revolve Boss

Trim

Appearances

The rear fender has a round end and using split tool is mostly used here.

Front Fender:

Feature Used:

Offset entities

Trim Entities

Revolve boss

Dynamic mirror

Appearances

Rear Wheel:

Feature Used:

Revolve Boss

Trim Entities

Fillet

Extrude boss

Revolve Cut

Linear Pattern

Chamfer

Extrude Cut

Circular Pattern

Planes

Appearance

The rear wheel is much thicker than front wheel. It is also designed to be a multi body part consisting of a rotor, sprocket, rim, tire and the caliper all in a single part. Then revolve, extruded cut and circular pattern is used.

Chain:

Feature Used:

Trim entities

Block

Linear Pattern

Fillet

Appearances

It consist of 390 bodies including separate bodies for all the inner plates and the whole pins. Using curve circular pattern which allows each instances of chain parts to follow the curve drawn initially for the chain. It has to rotate along the curve and around the sprocket which is not possible if it is merged to make a single body.

Oil Tank:

Feature Used:

Boss Extrude

Combine

Fillet

Shell

Appearance

Extrude and Shell part are the major feature used in this part.

Pedal:

Feature Used:

Extrude Boss

Fillet

Linear pattern

Dome

Chamfer

Apperance

There are two pedal. Left side and right side. The right pedal was sketched and left was mirrored in assembly section.

Front Wheel:

Feature Used:

Revolve Boss

Trim

Extruded Boss

Revolve Cut

Cut Extrude

Circular Pattern

Linear pattern

Fillet

Appearances

The front wheel is thinner than rear wheel. It is also designed multibody part consisting rotor, sprocket, rim, tire, calliper all are made as a single body.

Chassis:

Features Used:

Projected Curve

Offset

Trim

Sweep Boss

Split

Convert Entities

Revolve Cut

Fillet

Combine

Appearance

The chasis is the frame structured that bears most of the load on the bike. Splines are used mostly and projected curve, split, sweep, and mirrored with respect to the mid plane.

Front Fork:

Features Used:

Extrude Boss

Trim Entities

Revolve Boss

Split

Move/Copy bodies

Dome

Mirror

Combine

Projected Curve

Swept Boss

Appearance

This handles are difficult to design and customized according to comfort zone. For this bosy revolve are mostly used. Lights are designed and give the apperances.

Engine:

Features Used:

Revolve Boss

Extrude Cut

Offset

Dome

Fillet

Trim

Mirror

Projected Curve

Composite Curve

Sweep Boss

Circular Pattern

Split

Appearances

The engine is V shaped with two exhaust pipes. It is the solid part of modelling. It has cooling fins, spark plug, intake, exhaust , belt and transmission pulleys.

Gas Tank:

Features Used:

Projected Curve

Trim entities

Sweep Boss

Loft Surface

Knit Surface

Fillet

Appearances

It is a hollow inside for the fuel. The mostly applied features is extrude surface, boundary surface, shell, knit surfaces. Then give the appearances and decals.

Assembled American chopper:

Assembly is referred to keeping the all components together. It creates complete product. The each components are changed and reflected in the chopper assembly. After doing the assembly rebuild the document properly.