home
Notes
Put your notes here.
global class
with Sophia, Kenny and Neil: what is CAD, how to use it, and how to design a 3D model for 3D printing. We also had a tour of the fablab and got to know the different machines and tools available. I was really inspired by Sophia's work found Kenny's projects really innovative and cool.
what is CAD
CAD stands for Computer Aided Design. It is a software that allows you to create 2D and 3D models of objects. It is used in various industries such as architecture, engineering, and product design. CAD software allows you to create precise and detailed models that can be used for manufacturing, prototyping, and visualization. CAD is to use computers to help create, modify, analyse and optimize designs.
Assignment: model (rastor, vector, 2d, 3d, animate, simulate) a possible final project. document the use of different types of cad.
CAD is like an artistic medium. This really resonated with me because I am not great great at sketching and becoming good at CAD early in my design career has helped me convey my ideas better. Types of 2D files-Rastor and vector. Vectors can use bullion operations like Union difference intersections Height maps can be made from images to add depth and relational value to 3-D and parametric design Can also just draw on a paper and scan it CAD is often optimised for architects or designers or animators or game developers. Pick the software based on the project needs. 3-D design can be defined as boundary reps which are boundary edges defined by vertices CS G constructive solid geometry is great for fabrication. It starts with primitive forms and uses boolean operations to build. The other form is a mesh-most software export mesh. 2D to 3-D is good process for this. Some functions for 3-D are Extrude Revolve Sweep Loft fillets/chamfers offset Measurement Distance Rendering Animation
Some cad features
Histories and hierarchy
It’s good for parametric designs it uses constraints and assemblies
Parametric design
Can be spreadsheet based and /or not based . Algorithmic thinking to express rules to define relationships between design intent and response. can create general designs with it.
Agent based modelling
Simulation and interactions
Local class 1
2-D modelling
>Installed inscape
Learnt some history of CAD and understood that computers as a design tool evolved because of the evolution of computational power
Following inkscape.
It’s really fun it has a lot of mathematical functions that I can use.
Raster versus vector
Pixel is the smallest unit of a bitmap/Raster image
A vector is a geometric mathematical description of points lines or polygons of an image
Pros and cons
raster has better control of editing and is better for images
Vector is better for fabrication
We saw some examples of software like inkscape, gimp, photopea, affinity, illustrator, Photoshop, etc
boolean operations
Union, difference, intersections
Different ways to join shape
AND, OR, NOT, XOR
My experience with this is there in my design career. I have used Figma, procreate, illustrator, sketching, etc to design posters websites apps etc. I use procreate to make product idea sketches and exploration. I usually start with sketches in my notebook.
modelling with rhinoceros
Mesh modelling, nurbs- UV surface space
Mesh elements:Face
Edge
vertices
Exploring tinkercad by making a Lego block.
the assignment
my final project involves an interactive octopus that works as an information and booking system for the protolab
I made some sketches in my notenook (awful ones).
And then I made a slightly better one on my iPad on Procreate.
then i followed this tutorial by Retroshaper on youtube, to use nodes to create one tentacle
https://www.youtube.com/watch?v=tlXEqfXMQLo
here is a screen recording of the whole thing
I added all the modifiers to a bezier curve, so I created 7 more curves to make the rest of the tentacles and added a screen by scaling down a cube.
extra: i used to teach blender basics to people who are freshly new to 3D at my old job and had created a curriculum for it. On staurday I sat with Shiv, Gabriel and Leo; where we went through simple navigation and elements, and some keyboard shortcuts.
extra extra: I hosted an exhibition at my studio where I had mystery boxes with 3D printed objects inside. here is the process of designing some of themand also how it looked at the end after fabricating it.
