3D Modelling Portfolio

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3D Modelling and CAD Portfolio By Darragh Murphy [email protected]

Transcript of 3D Modelling Portfolio

3D Modelling and

CAD Portfolio

By

Darragh Murphy

[email protected]

The following portfolio consists of 3D modelling and designs created using Solid Works

modelling software. The designs consist of work done both as part of my undergraduate

degree, and also under my own initiative.

LEGO Space Shuttle 6339

The following screen captures demonstrate a 3D model of a LEGO Systems space shuttle (set

6339). The model consists of the shuttle along with a manoeuvring arm and miniature

satellite. This model is comprised of 127 separate components. Each LEGO piece was

designed separately and brought together afterwards in an assembly file.

The original LEGO model can be seen below.

Figure1. LEGO Space Shuttle 6339.

Figure 2. LEGO Space Shuttle assembly file modelled in Solid Works.

Figure 3. Trimetric view of space shuttle.

Figure 4. Trimetric view with shuttle doors open, arm extended, and satellite nearby.

Figure 5. High angle view showing inside of shuttle cargo bay.

Figure 6. Front view of shuttle with cargo doors open and arm extended.

Figure 7. View of shuttle cargo lifting arm.

Figure 8. Section view of shuttle cargo lifting arm showing internal joints and hidden components.

Figure 9. Close-up section view demonstrating precision and tolerances within joints.

Figure 10. Close-up view of ball joint used at end of cargo lifting arm.

Figure 11.1 Close-up of knuckle joint at base of arm demonstrating free motion of the joint.

Figure 11.2 Close-up of knuckle joint at base of arm demonstrating free motion of the joint.

Figure 11.3 Front view of knuckle joint showing clearance allowed within joint for freedom of motion.

Figure 12. Trimetric view of satellite accompanying shuttle which can retract and fit within shuttle cargo bay.

Figure 13. Close-up view of knuckle joints required on satellite for retraction of arms.

Figure 14.1 Close-up of original LEGO part and Solid Works model demonstrating accuracy to original designs.

Figure 14.2 Close-up of original LEGO part and Solid Works model demonstrating accuracy to original designs.

LEGO Rescue Helicopter 6462

The following screen captures demonstrate my Solid Works model of a large rescue

helicopter (set 6597) which was part of the Res-Q theme released in the late 90s.. The model

consists of 157 separate components. Each LEGO piece was designed separately and brought

together afterwards in an assembly file.

The original LEGO model can be seen below.

Figure 15. LEGO Rescue Helicopter 6462.

Figure 16. Isometric view of LEGO helicopter.

Figure 17. Close-up view of angled blades on rear helicopter rotor.

Digital Kettle

The following screen captures are of a digital electric kettle that I designed as part of a

project during my mechanical engineering degree. The kettle was to offer a far greater range

of control such as timers and exact temperature selection and so it was to be placed upon a

large base as a means of incorporating the additional controls and display needed.

Figure 18. Fully rendered Solid Works model of main kettle body design.

Figure 19. Kettle shown in alternative materials on base with additional display and controls.

Figure 20. View inside kettle body showing heating element.

Figure 21. Section view of kettle and base showing how kettle mounts on base and cavity for

internal components such as printed circuit boards (PCBs), and wires.

Figure 22. Alternative configuration with handle above controls and display for easier access.

Formula Student Go-Kart Chassis

The following screen captures are of a go-kart chassis that I designed as part of a project

during my mechanical engineering degree. The formula student competition allows students

to design, build, and even race go-karts to be judged under a great number of technical

criteria. Competition entries must follow a myriad of strict regulations to be eligible and the

following chassis was designed to satisfy those regulations. It was necessary to decorate the

design so I chose to follow a space shuttle theme which came through very effectively in the

final design.

Figure 23. Fully rendered view of go-kart chassis and body panels.

Figure 24. Isometric view of chassis only.

Figure 25. Impact compliance demonstrating that an object of 254mm diameter or larger could not impact the frame without contacting at least three different

structural members.

Figure 26. Shapes used to represent the driver to test compatibility for minimum clearances between user and chassis.

Figure 27. Image showing rudimentary aerodynamic testing of model using Solid Works.