Category: Spring 2013

If a is larger than b, than do c… (I think??)

GIF files from the parametric truss exercise. Is there a way to animate a Multidimensional Slider (MD Slider)?

1. Fillet Radius Slider

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2. Offset Distance Slider

 

DANDELION STOOL BY KUO TZO JUNG

FINAL GRASSHOPPER MODEL

Using the design drivers I set out in the first part of this assignment I built a parametric model of the stool in grasshopper.

GRASSHOPPER CODE

The code allows for these manipulations

DESIGN DRIVER 1 – NUMBER OF PINS

RADIUS OF PIN HEAD

LENGHT OF PIN

AREA COVERED

From these design drivers I created 5 additional Dandelion Stool family members.

FAMILY MEMBER 1 – BALL STOOL

FAMILY MEMBER 2 – DANDELION IN THE WIND

FAMILY MEMBER 3 – SMALL PIN HEAD

FAMILY MEMBER 4 – BAR STOOL

FAMILY MEMBER 5 – LARGE CENTR SPHERE

For the parametric seating project, I used Marc Newson’s wooden chair for Cappellini as my parent:I started by using the surface model I had made in Rhino and referencing it into Grasshopper (I later built two alternate surface models and also referenced them into Grasshopper).

From there I made 4 blocks of code. 1 for the ribs, 1 for the base, and 2 for the horizontal supports:

 

Below are images of my final Grasshopper model:

While building my Grasshopper model, I kept the following 4 design drivers in mind and make sure those elements remained parametric:

(this second GIF doesn’t work in preview, but click on the image above and it will open in a separate window and run correctly!)

Using the above design drivers, I created 5 variations to the original parent:

THEN ( I don’t know what) ELSE (I should be doing).

Anybody got a good resource on syntax & creating if, then, else operations? I’m thinking I need one to tell grasshopper not to create any band that goes around a corner (possibly where the points are not on the same plane or where they are further apart than a set distance, because it will result in a warped loft). Any links on making a conditional function or any ideas on a better way to preclude these instances?

For the parametric seating assignment, I choose to work with Marc Newson’s wooden chair for Cappellini.

The chair is made of 3 parts: a curved, triangular base; 4 curved rectangular frames; and, 20 ribs, each a different size.

In Rhino, I drew the curved line for each piece of ribbing and swept a rectangle along it. For the frame, I used arcs and rectangles along with the sweep tool; for the base, arcs and triangles with the sweep tool. Below are 4 views of my model (clockwise from top left: front elevation, left elevation, plan view, perspective):

For the second half the assignment, I will use Grasshopper to explore the following design drivers:

1. BACK HEIGHT

2. RIB WIDTH

3. SEAT SHAPE