Week 3

Computer-Aided Design

Objectives

Individual Assignment
Model (raster, vector, 2D, 3D, render, animate, simulate, ...) a possible final project, compress the images and videos, and post it on the class page

Learning Outcomes
1) Evaluate and select 2D and 3D software

Individual Assignment

Learning CAD
This week Assignments is to learn CAD by using the following tools:
2D Design
  • Raster - Krita
  • Vector - Inkscape

3D Design
  • Fusion 360
1) Krita
Krita ia free and open-source raster software for digital painting. It is a very easy to use software. It has got lot of editing, painting and brushing tools.


I decided to use Krita for designing a logo for my final project.
File -> New , Then Create New Document window wll open. In this window set the page size and press Create


A blank page of the required size opened.


Using the Text Tool I clicked on the blank page and a new window opened.


In this window I wrote Smart clOck and changed the font and size, and then click Save


Now using the Rectangle Tool I made a border around the text and then using the Transform Tool edited the rectangle and then changed its colour.


Using the Fill Tool gave the same blue colour inside the rectangle.


Then I changed colour of the font to white.


Using the Brush Tool I drew a WiFi symbol and place it on top of the "clOck" text


Then I exported the Logo as a png file.
2) Inkscape
Inkscape is a free and open-source vector graphics editor. It can be used to create or edit vector graphics such as illustrations, diagrams, line arts, charts, logos and complex paintings. Inkscape's primary vector graphics format is Scalable Vector Graphics (SVG), however many other formats can be imported and exported.

I decided to use Inkscape for creating a block diagram for my final project.
I opened Inkscape and using the Rectangle Tool created few boxes.


Using the Circle Tool I created 2 circles.


Using the Text Tool I wrote the text.


Using the Transform Tool I made the text bigger.


Then I added text inside all the blocks and then I imported png file of an Arrow and WiFi symbol and placed it in position using the Move Tool.


Then I exported the block diagram as png file.


3) Fusion 360
Fusion 360 is a cloud-based 3D CAD, CAM & CAE design tool from Autodesk. It is available on a number of platforms including Windows, Mac & In-Browser. It is functionally similar to other 3D software like Solidworks, Siemens NX, Inventor or Catia.
Highlight features include:
  • Parametric Modelling
  • Program tool paths for CNC machines
  • 3D Rendering
  • Export STL models for the 3D Printer



I decided make a 3D model of the clock. So first I created a sketch on the Y-plane.


Then I drew a circle of 120mm diamenter.


Then using the Extrude Tool I extruded the circle.



Then by using the Shell Tool I made the cylinder into a shell of 2mm thisckness.



Then I selected the opposite side face to create a new sketch.


I drew a circle of 150mm diameter.


Then I extruded this circle.


To provide a back cover for the casing, I selected the back face of the clock to create the sketch.


Then I projected the outer line of the casing to the new sketch and then extruded the sketch.



Then I selected the Appearance option.


I gave the clock face a wooden finish.



For the casing I gave white plastic finish.



Then selected the clock face to create a new sketch. On the SKETCH PALLETE I enabled Construction.


The I drew 2 construction lines to obtain the horizontal and vertical half.


Using the Text Tool I wrote 12 on the plane and positioned it to the center.



Similarly I added the other numbers.


Then I selected all the numbers and extruded it.



4) Rendering
I also tried Rendering using Fusion 360.


Click on the In-Canvas Render option.


And the model got Rendered on the screen.