30 / 10 / 2024
LEVEL 1
INTRODUCTION TO DRAWING
Fundamentals of Drawing
Drawing is the visual language of translating thoughts, observations, and emotions into lines and forms on a surface, capturing a moment or idea in a unique, personal way.
Engineering Drawing
Engineering drawing is a technical illustration used to convey the size, shape, and specifications of an object or system. It provides detailed information needed for manufacturing or construction. Engineering drawing serves as a blueprint for manufacturing, construction, and assembly processes.
Fundamentals of CAD
CAD - Computer-Aided Design is the use of computer software to create, modify, analyze, and optimize detailed 2D and 3D models and technical drawings. It helps engineers and designers produce precise drawings and models for various fields like architecture, engineering, and manufacturing.
Increased Efficiency: CAD allows for faster design and modification of drawings, reducing the time required to develop products.
Enhanced Precision: CAD provides accurate measurements and specifications, minimizing errors and improving the quality of designs.
CAM - Computer Aided Manufacturing (machining).
Computer-Aided Manufacturing (CAM) is the use of computer software and machinery to automate, control, and manage manufacturing processes.
CAM converts digital designs into instructions for automated equipment, such as CNC machines, improving production efficiency, accuracy, and consistency in creating parts and products.
CAE - Computer Aided Engineering
Computer-Aided Engineering is the use of software tools to analyze and simulate engineering designs, helping to predict performance, optimize structures, and assess the behavior of products under various conditions.
INTRODUCTION TO ENGINEERING DRAWING
Orthographic Projections
Orthographic projection is a method of representing a three-dimensional object in two dimensions by projecting its features onto perpendicular planes.
Orthographic projections display different views of a 3D object, such as front, top, and side, in two dimensions.
Here are some examples of orthographic projections
Isographic Projections
Isometric projection is a type of 3D projection used in technical drawing to visually represent an object.
Unlike orthographic projections, isometric projection shows a 3D view of an object on a 2D surface, allowing viewers to see three sides simultaneously.
Isometric projection helps engineers visualize complex designs in three dimensions, facilitating better understanding and communication of the object's structure. It enables accurate measurements and proportions, making it easier to create and analyze technical drawings for manufacturing and construction.
2D Drafting
Sierpinski Triangle
The Sierpinski Triangle is a self-similar geometric shape. Sierpinski triangle is a fractal that can be constructed in 2D drafting by repeatedly removing smaller triangles from an equilateral triangle.
2D Drawing in CAD
In this task, I first applied for the Autodesk educational license.
Then, I learned how to create 2D drawings using CAD software like Fusion 360.
I became familiar with various tools such as mirror, pattern, shapes, dimensions, offset slots, and many others. Working with 2D drawings has made it easier for me to create 3D models.
3D Drafting in CAD
Allen Key
3D Drafting of some Machine Parts
After completing the 2D drafting, I found it easy to transition to 3D drafting of some machine parts. During this process, I learned to use solid tools such as extrude, hole, Chamfer, Fillet, revolve etc
3D MODELING
Solid Modeling
An aerofoil (or airfoil) is a streamlined shape designed to generate lift when air flows over it, typically featuring a curved upper surface and a flatter lower surface.
First, I drew the design on one plane and used the offset tool to create the same design on another plane. Then, I applied the loft tool to join them. It was quite easy to do.
Surface Modelling
Toroidal propellers
A toroidal propeller is a propeller shaped like a doughnut. This design helps improve efficiency by reducing drag and turbulence, allowing for better thrust and quieter operation.
Toroidal propellers are often used in marine applications and drones because they can offer better performance compared to traditional propellers.
Their unique shape creates a smoother flow of water or air around the propeller, resulting in less noise during operation and making them more efficient
To draw a toroidal propeller, start by drawing a cylinder. Initially, it was quite difficult, but I persevered.
Next, in the sheet metal section, select a side and define the length and thickness of the blade.
Right-click on mouse and choose to move it forward, then rotate it to the desired angle. Finally, create a circular pattern of the shape.
Sheet Metal
The Sheet Metal tool in Fusion 360 is a powerful feature that allows users to create and design parts specifically intended for sheet metal fabrication. This workspace is tailored for developing flat patterns, bending features, and managing material thickness efficiently. Users can easily define parameters such as length, width, and thickness while applying various operations like flanges, bends, and cuts.
Post Box For MARVEL Using sheet Metal in Fusion 360
Organic Design Using Forms
Prerequisite for assembly in Fusion 360
Assembly and Animation
Assembly and animation are among my favorite tasks in Fusion 360. I designed and animated a simple slider mechanism, which was a rewarding experience. I utilized various resources, including instructional videos, to gain insight into the different tools involved in the assembly process.
I used many tools while designing the 3D model, including As-Built Joint, Revert to Original Position, Ground, and others. This task allowed me to understand how these tools work and how to apply them effectively to create accurate movements and constraints within the assembly. Overall, it was an amazing task that enhanced my skills and understanding of assembly and animation in design software.
Spur Gear Design
Designing a parametric box
ELECTRONICS
Basic gates using TTL logic.
I was bit familiar with logic gates and this take help me to understand it completely. I have designed AND gate and OR gate with NPB Transistor logic, This is the truth table and circuit simulation of AND gate & OR gate.AND gate
OR gate
N-channel MOSFET.
With help given resources I learned about MOSFET , different types of MOSFET like enhancement type of MOSFET and Depletion type of MOSFET. And this is the circuit simulation of MOSFET
logic design.
full adder using 2x1 Multiplexers here i have learned about the multiplexers, k-map and designing logic gates. multiplexer usually takes one or more inputs and gives a single output , Here i have used 2x1 multiplexer so it takes 2 inputs and gives a single output.
Matlab