Minimum bounding box

For creating the molds, it is very useful to find the minimum bounding box for each surface. Grasshopper can use iterative evolutionary models to find the best fitness for a group of parameters (genes).  This method is called Galapagos.

So instead of trying to find a good bounding box, we input the bounding box pivot points axes as genes and use the resulting volume as a minimum fitness.
evo test
In the end you can automatically calculate the mold area you’re using or check the max height requirements.

TODO: Work on extruding to make the actual mold, instead of only the bounding box.

The result with one our of models:


For more information on Galapagos see:


Group 2: Maaike Kok, shape study of the form to spice it up

Variant 1. 1 seat, 60 degrees curvature as made in Rhino. Klei3


Variant 2. Klei8

Variant 3. Klei6


Variant 4. Klei7

Variant 5. Klei5

Variant 6. Very nice curvature, attractive.Klei4


Variant 7. Model made as 3D example of a concept made by Luuk. To look if shape can stand on its own. This is possible if the back rest has enough curvature and when there is enough weight onder the seating area to keep the chair in balance.Klei1 

Group 2; Variants Maaike Kok


Divided dome into three equal parts. So only the molds for one part are needed. Parts can be positioned in dome shape, but are not connected in the middle so they can be randomly scattered on a square as well if there is not enough space. Next to that this provides easy assembly since one of the three parts can be produced in one day. The next day this part can already be assembled, while the next part is being made.

Variant 1: Dome with two stairs, 90 degrees curvature. 23m2. Too bigVariant1_90graden_2_stoelen

Variant 2: Dome with two stairs, 60 degrees curvature. 17m2. Variant2_60graden_2_stoelen

Variant 3: Dome with two stairs, 60 degrees curvature. 17m2.  Variant3_60graden_2_stoelen

Variant 4: Dome with two stairs, 60 degrees curvature. 15m2.  Variant4_60graden_2_stoelen

Variant 5: Dome with one stairs, 90 degrees curvature. 19,2m2.   Variant5_90graden_1_stoel


Variant 5: Different parts place randomly on a square instead of in a dome shape.Variant5_90graden_1_stoe0_random placementl

Jelmer Group 2 Further developments design

Today we from group 2 continued on further developing our design. For this we took our final design from last week and the comments on it.
The most important was to make sure the design would fit into the molds. Therefore we decided that we make our design so we could use our mold three times. (The design below now has a surface of 19 m² per part, so it should fit in the available molds/mold space.)
After defining the main shape and separation of the parts we individually made some variants, below you can see mine.
Tomorrow we will further discuss them and hopefully pick one to refine.

Two variants, one very smooth and another one with some curves on the surface which makes it look more interesting (sadly it looks pretty weird on the render, I should probably change the used curves a bit to fix this.)
Jelmer Sketch Design Further Development
Jelmer Sketch Design Further Development


Different variants of the separate part (from very smooth to a curved/non smooth surface.)
Jelmer Sketch Design Further Development Jelmer Sketch Design Further Development

Group 1 _ Niki, Elia, John, Lemonia,


We have changed the design but we kept working on the same principle of repetition of one unit. So we can produce a variety of forms.

The compositions are produced by a translation of the unit on x and z axes and simultaneously the unit is rotating around its self on x and z axes.  Then different frozen forms can be created. The form is self supported by utilizing the properties of material and the stacking method.

The forms produce both shaded and sitting space.

We continue working on the forms to solve the problem of overlapping and find the suitable intersection points to create the joints between units.P1340265 Untitled-0 Group 1 _ Niki, Elia, John, Lemonia Untitled-2

Group 3 update

We improved our model. In this new update, there are two arches in the design which each of them consist of two similar parts. Then, there are four parts in the design that can be made by the same mold. It decrease mold area to 17.3 m2.

Version 5 pic2 Version 5 pic1

Also, we decide to use lamination method to assembling the model because it seems to be the only way to keep the shape edges. After laminating, the edge of the composite needs to be sanded and painted to create a nice looking finishing.