Darshan's D-P-001 course work. Lv 1

31 / 10 / 2024

Introduction to Designing Fundamentals of Design on creating effective and reliable systems. Key principles include ensuring functionality, simplicity, and safety while choosing appropriate materials. Designs should also be easy to manufacture and energy-efficient. Finally, considering ergonomics helps create comfortable and user-friendly products.

CAD (Computer-Aided Design):

1. Design Creation: CAD allows engineers and designers to create detailed 2D and 3D models of objects, making it easier to visualize ideas.

2. Precision: It provides high accuracy in measurements and dimensions, helping to reduce errors in designs.

3. Editing and Sharing: CAD makes it easy to modify designs and share them with others, facilitating collaboration among team members.

4. Simulation and Testing: CAD software can simulate how a design will perform in real life, allowing users to test and improve their ideas before building physical prototypes.

CAE (Computer-Aided Engineering):

1. Analysis: CAE helps engineers analyze how designs will perform under different conditions, such as stress, heat, and fluid flow.

2. Simulation: It allows users to run simulations to see how a product behaves in real-world situations without needing a physical model.

3. Optimization: CAE tools help improve designs by suggesting changes that can make products stronger, lighter, or more efficient.

4. Cost and Time Savings: By using CAE, engineers can identify potential problems early in the design process, saving time and money on testing and development.

CAM (Computer-Aided Manufacturing):

1. Automated Production: CAM uses computer software to control machines and equipment, making the manufacturing process faster and more efficient.

2. Precision: It ensures high accuracy in the production of parts, reducing errors and improving the quality of the final products.

3. Design Integration: CAM works closely with CAD software, allowing designs to be easily translated into manufacturing instructions.

4. Flexibility: It enables manufacturers to quickly adjust production processes for different products, making it easier to adapt to changing demands.

Introduction to Engineering Drawing Orthographic Projections Orthographic projections are a way to represent three-dimensional objects in two dimensions by showing multiple views, typically the top, front, and side. This method helps convey precise dimensions and details without perspective distortion.

Isometric Projections Isometric projections are a method of visual representation where three dimensions are shown in a single view, with equal angles of 120 degrees between the axes. This technique allows for a more realistic depiction of an object while maintaining accurate proportions and dimensions.

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4. 2D Drawings in CAD I utilized various tools in the sketch option of Fusion 360 to create different types of sketches. This process involved a significant learning curve as I explored mechanisms for creating constraints and employed different line types, including the mirror pattern option.

2D Drafting I created a Level-2 Sierpiński Triangle using Fusion 360, starting with an equilateral triangle and recursively removing the central triangles. This involved applying various sketching tools, including constraints and line types. I generated a detailed drawing sheet, labeling dimensions such as side length and height. This exercise enhanced my understanding of geometric design and preparation for advanced tasks.

3D Drafting of an allen key I designed a 3D model of an Allen key in Fusion 360 with dimensions of 55 mm in length, 20 mm in width, and a hex size of 3 mm. I created a detailed drawing sheet, including multiple views and labeled dimensions. The drawing sheet featured a title block with essential information. This exercise enhanced my skills in both 3D modeling and technical documentation.

3D Drafting of Machine parts

I used my skills which i used in 2D drafting to draft various machine parts using tools like extrud hel oft mirro ollow etc.

3D Modelling Solid Modelling

I designed a simple aerofoil for an HTOL aircraft in Fusion 360, utilizing plug-ins to create a NACA aerofoil profile. I learned the nomenclature of NACA profiles, focusing on terms like leading edge, trailing edge, and camber line. The project included tutorials that enhanced my understanding of airfoil concepts and wing design principles. This experience improved my skills in solid modeling and aerodynamic design.

Surface Modelling: I explored the concept of toroidal propellers and their advantages, particularly for enhancing efficiency in propulsion systems. I completed an introductory course on the Forms feature in Fusion 360 to understand freeform modeling techniques. Using these skills, I designed a toroidal propeller. This project improved my proficiency in surface modeling and advanced design technique

Sheet Metal I designed a component using the sheet metal environment in Fusion 360, focusing on usability and creativity. The design incorporates user-friendly features while ensuring structural integrity. I optimized the design for manufacturability and minimized material waste

Organic design using forms

I designed a hollow vase for MARVEL using the Forms feature in Fusion 360, focusing on organic shapes and aesthetics. The model features smooth transitions and an appealing curvature

Prerequisite for assembly in Fusion 360 Bodies Bodies are solid or surface geometries created within a single design file. They represent individual parts but are not inherently separate entities Bodies are often used for simpler designs where multiple parts are modeled together in a single environment. Components Components are individual parts or assemblies that can be moved, manipulated, and organized independently within a design. Each component can have its own origin and coordinate system. Components are ideal for more complex designs, especially those involving assemblies of multiple parts Assembly and Animation I designed a pawl and ratchet mechanism using Fusion 360, focusing on modeling, assembly, and animation. The mechanism consists of a ratchet wheel and a pawl that engages with the teeth of the wheel to allow motion in one direction. I accurately modeled each component, assembled them with appropriate joints, and created an animation to demonstrate the mechanism's operation. https://github.com/user-attachments/assets/c6117701-6edc-465b-8224-32ac4e82c886

Spur Gear Design I designed a spur gear system in Fusion 360, creating an input gear with 20 teeth and an output gear with 40 teeth to achieve a 2:1 gear ratio. The model features a module of 3 mm and a pressure angle of 20 degrees, accurately reflecting the tooth profiles and dimensions. I ensured proper alignment and meshing between the gears Designing a parametric box I designed a parametric box with threaded features and various lids incorporating snap joints and slide joints in Fusion 360. The box includes multiple lid designs that securely fit onto it. I utilized the assembly workspace to position the components accurately. Additionally, I created an animation to demonstrate how the lids attach and detach from the box

https://github.com/user-attachments/assets/c9db654e-47b1-43db-a7ca-fd7007e445e3

E L E C T R O N I C S Make basic gates using TTL logic I designed basic AND and OR gates using TTL logic with NPN transistors in TinkerCAD. The AND gate was constructed to ensure the output is HIGH only when both inputs are HIGH, while the OR gate output is HIGH when at least one input is HIGH. I successfully wired and tested both circuits to confirm their functionality AND OR Driving an N-channel MOSFET designed a circuit to drive an N-Channel MOSFET in TinkerCAD, demonstrating its operation with a load (LED). The circuit included a gate resistor and a switch to control the MOSFET. I successfully simulated the circuit, confirming that the LED lights up when the MOSFET is activated. LOGIC DESIGN I designed a full adder using 2x1 multiplexers in CircuitVerse, creating a circuit that produces both sum and carry outputs based on three input bits. I referenced the truth table to ensure accurate connections and logic implementation. The circuit was tested and verified against various input FILTER DESIGN I designed a second-order band-pass filter using the IC741 in LTspice, aiming for a gain of approximately 1.5 and specific cutoff frequencies. I calculated suitable resistor and capacitor values to meet the design criteria. The circuit was constructed and simulated to verify its functionality within the intended frequency range MATLAB Matlab OnRamp

I created a MATLAB account and successfully completed the MATLAB OnRamp course. This course provided an introduction to essential MATLAB concepts and functionalities. Upon completion, I obtained the certification, enhancing my programming skills and familiarity with