Digital development of a multi-purposed chair, created by industrial designer Iqbal Musthafa. The basic concept of the design was by creating a plastic shell which will be used as “platform” to create various types of chair, including swivels, sledge base, and four-legged.
The seat and back are combined into single part that will be made by plastics (probably Poly Propylene or Poly Amide). There is an ornament at the back, which looks like a scattered square.
This phase is an engineering study before the concept goes into reality. A complete check-up will be done, including study of the dimension, overall proportion, and thickness of the product. Analysis of the elements (FEA) will be done as well to test the design, whether or not it can resist stresses and human body-weight.
The modeling phase was started from scratch, as the basic principal of the design: curves generate surface, surfaces generate solid. With, of course, points as helper.All the curves were “mouse-drawn”, and had minimum control points to help the next stage easier.
The next phase of this digital process is creating the prototype, which can be done in various techniques. One of the most plausible techniques is by using CNC machine, that will generate a physical model accurately, fits with the geometry’s data.
An old test case of prototyping can be found here.
I am currently developing a very simple component which seems to turn in to be a long way process of designing. This component has been posted previously, and had some continuous refinements in the making.
The basic function of it is very simple: to clamp a rectangular pipe, by using a pre female threaded top part, and holed bottom part. This idea could be applied into many cases, but as a “test case”, this is used to tighten two separate pipe as table structure.
There are shifts from the old design to new one, and in general there are three revisions made so far. This process can be considered as Kaizen activity to find the best solution.
The first design had a cube based form, and the second one did look like a flying saucer (above). The third and final design of this component looked like a trimmed cylinder, and still has the same purpose and structure.
Within this development process, I am using Rhino 3D software with the latest version (5.1.20927.2215). The improvements in the software itself were very impressive, in my perspective.
One very important new feature was definitely the “new” (previously developed on beta phase) “shell” command for creating a consistent wall of a component. This couldn’t be done easily in their previous version, but the new one served this feature nicely.
Above illustrations show how the command works. The logic of the command is initiated by removing one or more face (s) (surface (s)) within a polysurface, then it will simply attempt to create a wall with given thickness.
This command is very helpful on overall designing process, as it shorten some modelling commands and time to create the thin wall if it is done “manually”.
All of the new commands and features can be found in the documentation section.