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Shape production process

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Silvestre Joaquim

on 27 December 2013

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Transcript of Shape production process


DATE: 5-7/11/2013
CREATED BY: Joaquim Silvestre
Useful links:
http://bit.ly/HBFCAG <-actual presentation
http://bit.ly/HEJJuP <-exemple

Using processing
Preparing the shape to digital fabrication
You can modify the shape created with processing or create a brand new one.
Import .obj file
or model a shape with the tools provided in blender.
Save your file as a .blend file for later modification and export it as .obj file
Modify the shape
click with the
right mouse button
(RMB) on the object then press
Tab keyboard touch
The shape should be a mesh and it need to be a closed surface. It can't be a surface. Use the modifier "solidify" to give thickness.
We will use the 123D software
import .obj file
if the surface is close you shouldn't have any problem.
Export the board ready to cut in format that can be use by the laser cutter.
Arrange the slicing
First set the scale of your model. There is no architectural scale. You have to manage it by manipulation of the bounding box.
Assemble the pieces of card board to build your shape and integrate it in your project.
This shape manipulation method can be hard to manage but it provide some advantage that you can't get with usual 3D software
As you see manipulation are easy but not very precise
This process use only free or open software. You can follow it or just use some parts, use only blender and 123D Make or if you have a copy of Rhino or other 3D software that you understand better you can include it in the design process.
Generative Componnement
Catia / digital project / SolidWorks
-Close/open /SDK
-don't be afraid to use multiple software
-even toy software (there is no shame) or not designated software
-hack them to get what you want and not do what you're expected to do with.
-Basic command of the software.
-Overview of other software and representation system CSG/ BRep/ Mesh
-Shape production process : Scripting and Spaghetti programing
-Basic of programming
-Overview of the IGeo library
-Some geometry explanation
-Overview of the other available library
-explore the different assembling method
-try to modify your model with the tool provided in 123DMake
-use laser cutter.

these different shape are made with Processing
found a shape type
try the different script to explore the shape and find one that fit your needs or inspire you.
get the .obj file
Modify variable
to parametrize the shape. You can go further and try to understand how the program work.
create a geometry by the numbers
-Usual software for architect are not ready for digital fabrication, algorithmic design.
-complex curvature shape, procedural draw for instance are not so well implemented.
-Software ecology evolve, there is no one software that solve everything (and it's good it prevent us to be framed by it, so we still keep the control)


In edit mod you can directly manipulate the vertex. That's very instinctive but not so convenient for architecture design.
You can add modifier or do some cloth simulation
-fulfill your design expectation
or discover new ideas
-Produce and materializing
of digital shapes.
-Avoid monkey job
Suggestion of other software that you can use
-Plugins that enable analysis and other manipulation of shape
-The software became free recently
-Interface concept associating 3D view, graph and code as different representation of the same thing
-Very expensive license
-comes from aeronautics engineering field
kangaroo : dynamic physic simulation
Grasshopper : procedural modeling
-Originally designated to jewelry, shoes and boat design
-that's why it's more precise than usual 3D modeler.
-The use of Brep allow rational free form manipulation, you can "describe" the shape as a sequence of geometrical function. (That's why grasshopper is so efficient)
-Because it's mainly product design or part design (the boat hull) beware of crash while manipulating big files.
For now I've only talked about geometry and construction. You have to found architectural meaning and purpose of this tool. You need to adapt this process to your project production process and your design intention.
-Initially, for pixar like animation movies
-Long modeling session, learning curve a bit harder than usual but then quicker modeling ability. (lots of shortcuts )
-Since it's open source, lots of script, plugin and utilization far from the initial goal. (game engine, compositing, research)
Doing this by hand is boring and time consuming.
Especially if I ask some modification during the process.
Even if there is a design pattern that you understand intuitively, you have to draw line and surface one by one and do lots of copy and paste.
How to teach to the computer the design pattern so it does the boring work
origin : design by numbers
java programming language
123D make Autodesk software
belong to a suit for design
set the material size and thickness,
the slicing orientation and the number of slice.
When slice are in red there is a problem, try to find a configuration that avoid it
We can go deeper on some point of the process if you want to get a better understanding of it.
Full transcript