Site models could be calculated for laser cut easily using Grasshopper’s native components. This definition was a practical one we’ve created in Parametric Modeling course to see that Grasshopper could also be utilized to prepare fabrication documents not generating design outcomes. However this definition is a draft one and could be improved more by putting labels inside of each cut pieces, trimming the edges properly and so on. It is good news for students at least that they have a chance to generate topography models from the AutoCAD maps mostly used […]

## contouring

After this tutorial, we are still working on the basic ways of making contouring easier in Grasshopper. This is the updated version of the 2-year old contouring definition in Grasshopper, with some additional functionality. It produces a flat and properly numbered output of each section. However it does not include optimized nesting to reduce material use. Here is the Grasshopper definition (don’t left click, use right click and “save” option) [GHX: 0.9.0076] and the Rhino test file [3DM: Rhino 5].

This video is dedicated to the Design Computing and Basic Design students, who “contour” and then move each and every section by hand, one by one, in order to fabricate their laser-cut homeworks from cardboard. It could also be a macro but I prefer this because it somehow does not work in all conditions. Maybe you should orient your contouring results similar to shown in the video, and then use shear command to spread them.

This is a project proposal designed at the workshop organized together with Simge Esin Orhun and Fulya Akipek as part of the International Wood Day Exhibition in İstanbul. This time, the final Grasshopper definition is created “after” some experiments with physical models. Here is the first model showing the idea inspired from the folding chairs studied here. I realized that in order to make a “wall” instead of a chair, it would be a good idea to extend the edges of the sticks so that they meet at several (2 for example) […]

Parametric variations of the folding chair, inspired from the “Rising Chair”, designed by Robert van Embricqs, was a good exercise for me to study Grasshopper again. After several different solutions, I’ve found the shortest one I think. This definition could work alone without any Rhino data, the overall size (width, length) of the plate, number of longitudinal cuts are all calculated within the definition. Without using any physical engines for complex rigid folding simulations, this is solved quickly just by applying simple right triangle equations. There are three other parameters that control the shape […]

Here are two macros that automate some of the classical structural styles in today’s architectural geometry. They could be developed more to include joint details however. It is a relaxing experience to study macros, when the process doesn’t have an algorithmic expresssions (such as recursion, iteration or conditionals). It is today’s subject in first year design computing course at İBU. The first one requires at least two curves already present in order to define a lofted surface (to be “waffled”): ! ; Waffle Structure Macro 2 _-loft _pause _enter _sellast _setobjectname […]

Here is the winner of this year’s mid-term jury competition in first year Basic Design studio of İstanbul Bilgi University. We asked students to construct a contouring structure within 8m3 volume. After several clay and foamboard prototypes, this group studied 3d laser scanning to digitize the clay model, then finally they used leap motion gadget to simulate the hand-made clay forming in computer. Other student projects will follow this post, as there were several other interesting approaches in this jury. Students: Selim Buldu, Lachyn Tuliyeva, Neda Khorshidi, Serhan Koçbasan, Sevgi […]

Design Computing classes conducted a “voluntary” assignment; a “contouring” fabrication, that outputs physical prototypes of the previous parametric wall assignment. They worked very well with the corrugated cardboard in fact, and extended the simple contouring exercise in Rhinoceros into a design study of patterning and transparency. It seems that corrugated cardboard is a perfect material to study the shift from digital to material. Below are some of the student works that study various angles of contouring on different seamless surface patterns. Ecem İkizoğlu, Esin Güneş Pınar Aksoy, Cansu Karaman Afra Öztürk […]

SPEC disappeared from our garden suspiciously. Hopefully we’ve already finalized it’s parametric survey. Can has created the original model by measuring exact corner coordinates. Then, manipulated it’s shape by creating diverse vectors for each shape. Emre has also tried a similar approach. Can’s definition was too long, not using data trees, therefore it is slow. But it’s very effective at offering a solution for an animation. I re-captured his frames for animation; Another innovative solution came from Yağız along with a presentational concern. He seems know what he’s doing. He […]

Here is a funny sketching system for the “SPEC” homework. [GHX: 0.8.0066] Four (or more) points are created using 2d sliders (MD slider) and decomposed these points into x,y and z numbers. Then, they are re-populated in 3d points by changing their plane. X coordinates are connected into Y, and Y coordinates are connected to Z’s. Tricky part comes then, the X number is defined by a serie of numbers started from 0 to 30 by 1. After that, polylines are constructed using the new point list. Data recorder is initialized to […]

So far, only Yağız Özkan posted an animated solution; Now, they seem to improve much, as they will now include operations on data trees. Yağız constructed a complex diagram, defining each point and curve seperately. Today, we’ve seen methods to shorten these diagrams and improve effectiveness of the plug-in. Important part of that study was to develop a proactive behaviour on creating Grasshopper definitions from the hand-drawn diagrams. We need to study all components, their input and output types carefully, so that we’ll be able to tell Grasshopper what to […]

It has been a tough problem for me, for last two days. Parametric model of an interlocking structure (sometimes also called egg-crate, waffle or contouring structure) can be created easily in Grasshopper using Contour component a couple of list management operations, and a boolean (or region) difference event. However Rhino and Grasshopper are very slow at calculating boolean differences on both solids and surfaces. Fabrication models of such structures don’t have to be solid models as they are at last downgraded into two dimensional rib sections with interlocking details. As […]