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As well as website development, designing area is also first time for me. Our instructors Vinod and Lancy gave a wonderful session on designing 2D and 3D images. Professor Neil gave a brief session on vector and raster tool.Today (01/02/2018) i got a good view at these by our instructors.

Computer-aided design (CAD) is the use of computer systems to aid in the creation, modification, analysis, or optimization of a design

RASTER

A Raster image is made up of individual pixels

Raster-based image editors, such as Painter, Photoshop, Paint.NET, MS Paint, and GIMP, revolve around editing pixels.vector-based image editors, such as Xfig, CorelDRAW, Adobe Illustrator, or Inkscape, which revolve around editing lines and shapes.

From my understanding, Its more like a free hand drawing, which im not a fan of. I clearly have issues with drawing. Its definitely not my strong skills, but with the help of my instructors i hope i will be able to improve my skills in drawing.

Here is some tools i have tried this far.

1. GIMP (GNU Image Manipulation Program)

GIMP is a free and open-source raster graphics editor used for image retouching and editing, free-form drawing, resizing, cropping, photo-montages, converting between different image formats, and more specialized tasks

Brief idea from our instructors helped me to create an image which is shown below.

I have downloaded an image of Bulb, Water Splashing and Fishes from "Google"

Opened the Bulb image in GIMP

Rotated using "Rotate Tool" from tool menubar

Imported the Water Splashing image in GIMP

Scaled the image to fit in first image

Rotated using "Rotate Tool" to look like it splashing inside the bulb

"Multiply Tool" is used to join two images

"Add Layer Mask" from right click of layer, to erase unwanted water splashing overlapping the bulb

Used "Erase Tool", Zoom-in and erase the edges of watersplashing

Imported the Fishes image in GIMP

Scaled the image to fit in edited image

Moved the Fishes image and created a new Bulb Fish Tank

2. MyPaint

MyPaint is an easy-to-use painting program which works well with Wacom graphics tablets and other similar devices

A vector image is composed of paths, which are represented by mathematical functions. These mathematical function represents the actual borders and the different elements in the image

VECTOR

Vector-based image editors, such as Xfig, CorelDRAW, Adobe Illustrator, or Inkscape, which revolve around editing lines and shapes

Inkscape

Inkscape is a free and open-source vector graphics editor which can be used to create or edit vector graphics such as illustrations, diagrams, line arts, charts, logos.I installed Inkspace using the commands

First I had set width and height from File >> Document properties

Inkscape gave me a brief idea on setting path like Union & Difference

Learned to put a text on a path, as in office seal

And I was excited to learn about a new feature(to me) which is TRACE BITMAP, which is shown below

2D and 3D Modelling

AutoCad

AutoCAD software is used for mechanical product design and drafting applications

I hope more of my experience is required to be documented other than the desription. Although AutoCad was necessary in my engineering academic year,i havent got a chance to know this software better. So I had a picture in my mind from childhood memories which is the only drawing i remembered.I figured that will be my first drawing afterall.

The main commands used are

Line: Draw the start point and end point of line

Circle: A center point, followed by diameter or radius

Arc: Create the start point, middle point and end point

Trim: Trim command is used to remove the unwanted edges

Extend: Used to extent a line

Subtract: Used to subract one surface from other

Region: Used to create a surface. A surface (XY plane) is a formed by a set of closed lines or arc

Extrude: Used to extrude a surface (in XY plane) towards Z axis

Other commands used are Mirror, Offset, Move, Array, Fillet, Subtract etc.

Rhinoceros

First time hearing about the software.I got a month licence for this software from Autodesk. Our instructor Vinod had given a great session on this, and seriously i got impressed with it. But also for drawing here, first you need to see things more creatively. You can draw it front, top and side view and also in 3D.

Rhino has 4 views - Top view, Perspective view, Front view and Right view

Also we are able to draw in every view

Osnap : Set object snaps state

Line : Draw multiple adjoining line segments

Offset : Copy a curve parallel to the original

Extrude : Make 2D image to 3D

Cap : Make hollow to solid image

Boolean Difference : To make a inside surface

Chamfer : Create a line segment between two curves and trims or extend the curves to meet it

Fillet : Adds an arc between two curves and trims the curves to the arc

Inventor

First time using Inventor.I got a month licence for this software from Autodesk. Our instructor Lancy had given a brief idea about Inventor. I find it more user friendly.

Line: Draw the start point and end point of line

Circle: A center point, followed by diameter or radius

3 point Arc: Create the start point, middle point and end point

Trim: Trim command is used to remove the unwanted edges

Extend: Used to extent a line

Extrude : Make 2D image to 3D

Extrude in opposite direction : Make a hole of inside surface in 3D image

Fusion 360

Fusion 360 was learned at the time of Computer-Controlled Cutting(laser cutting).I was not able to get parameters comfortably in inventor,So i turned myself to new software with a help of my instructor and one of my friend.

Also used to design during the time for shopbot

Also used to design during the time for Machine week

Siemens NX9

Siemens NX9 was learned at the time of Molding and Casting week

First I drew the model in 2D and extruded it

Using "Chamfer" I gave it the sharp edges

Inorder to make it smooth surface I Used "Blend"

Again drew a rectangle around the model and extruded it

Using "Subtract" I created a negative mold

I used NX9 for modelling my final possible project.In NX9 i modelled a 3D design, so it can give all the correct dimensions which can fit so that I can get create design in good manner.

First select a plane and draw a profile. We are able to give dimension at each end of the drawings

Can use fillet to set the edges

We can select the other plane and draw a new profile to join the 3D model

After drawing a rough sketch I was able to extrude with the dimension of the plwood width

After finishing my model, I exported the file as AUTOCAD DXF/DWG format to get the 2D design

after exporting I opened the file in Autocad inorder to arrange every single part, so it can be machined

NX9 gives a great idea how to draw in different planes

We are able to move or draw in 3D design itself

Solid Works

I used solid works for designing parametric

Set dimensions in "mm" and standars to "ANSI"

Drew Part

Selected Tools>Eguation>set Global Variable > Values

Drew Circle>Dimension>Modify>"Name">Value in "mm"

Trimmed