Algorithmic Sketch Book Keith Chan
Lofting With the vase exercise
The exploration of this exercise is to get a feeling of using Grasshopper. The vases in this exercise are created by drawing out different lines and lofting them together. The amazing part of Grasshopper is that switching the number slider can change the outlook of the vases. This is something that Rhino could not be done and really helped to adjust the design.
The stairs and the cube with void is created with the help of voronoi component. This parameter is to fix the infill of a volume. The shape of this form is by substracting part of the voronoi of the cube.
Transformation
The creation of the Pagoda started from creating one hexagon. Then setting the length and height of it. By getting a suitable size and in a optimum scale, the hexagons are extruded into suitable depths. This exercise helps me to gain a sense of controlling the u and v value. The effect of it can be changed dramatically.
Data trees
The form of these sheets are created by dividing the surfaces that were first created. By filtering the flip matrix of the curves, the data are used to create a curve through this set of points. The process of creating different shapes from the data trees is to change the path mapper. Changing the target and the source of this parameter will be able to create some unexpected results.
This exploration allows me to do some iterations that helps me learn more about using Grasshopper. The change in the u count and v count already produces a lot of great outcomes which is very unexpected. This exercise tells me that a single parameter can already produce lots of outcomes.
Joints
The pipes with the connection is created by setting up curves at the end of the pipes. Then dividing the curves into list items and joining the area of the lines and the output of the items to create the shape. The circle parameter is input to the divide curve component and it creates the pipes. Changing the index and the numerical value can change the direction and the number o f pipes.
This is a brief exploration of the joint system that connnects the pipes together. In this exploration, it is great to learn that all the lineworks can be connected at one point and adjust its orientation. The impact of it could be large as the jointing system will be a large issue in terms of connecting building materials together.
Detailed design model
After setting the curves of the form of the pavilion, they are lofted into a surface. The tween curve command is used here to generate the surface. Lastly the surface is filled up with triangular panels using the triangle panels b in the plug in kangaroo.
Adjusting the heights of the pavilion which is in a human scale. The lines at the edge are adjusted in order to suit the site.
Using image sampler to find the pattern, for the patterning technique. The panels found in this exploration are used as translucent panels in order to allow the pass of sunlight.
Figuring out the site near the St Georges Road in order to get a better sound experience. Maximising the contrast between the natural and artificial sound in this area is our concern.
Drafting out the joint system between the panels. However, this is not stable enough and it is hard to connect them together because the panels cannot fix to the connector.
Another draft jointing system, which is fine for supporting the panels. However the connection between the planes is a hard issue to solve as the desired angles between the panels are hard to achieve.
Getting the panels with the image sampler. They are used for the patterning technique.
Removing the holes at eye level in order not to allow visitors to peek out. This helps them to stay focus on hearing.
b
a
a
N Plan b
Section aa
Section bb
East elevation
West elevation
South elevation
North elevation
Making the site model in order to laser cut the site for the physical model. The height and the length of the MDF is in the same scale, 1:50. This is to show the slope of the site, which covers the pavilion at a certain level.
After finishing the site model, the model is placed there to show its relation to the slope and context of the site. As the lawn there is pretty flat, the slope of the site is not a big problem to the pavilion.
The west elevation of the pavilion in order to show the context of the site. The curvy shape of the pavilion suggests the wave of the sound, which is to connect the shape of it to our design agenda.
The first prototype in order to test the idea of connecting polypropyrene panels with connector. This exploration gives us the idea of the bending tendency of this material.
The second prototype in order to adjust the connection plane across the panels. This improved a bit in terms of providing a rigid connection between the panels and the rivet. The most successful exploration in this prototype is finding out our best connector - rivet.
Preparing the final model. The dotted lines are used because its easier to bend the popypropyrene into desired angles and connect them together with rivets. The holes are drilled to the size of slightly smaller than the dimension of the rivets in order to make it more stable.
Final model. Under shading, the very edge of the panels create some tiny gaps which give some unexpected shading effects. The connection between all panels and planes are connected by using open rivets. This gives strength to the connection and overcome the bending tendency of polypropyrene sheets.