Digital Fabrication » 3d printing

Cobogó: A Trip from Brazilian Modernist Architecture to 3D Printing

iaac — Tue, 09 Nov 2010 09:20:23 +0000

Marcio Kogan's contemporary approach.

Cobogó is the name of the hollow elements, originally made of concrete or ceramic, created in the 20th Century. Its name derives from the initials of the surnames of three engineers that worked in Recife, Brazil: Amadeu Oliveira Coimbra, Ernest August Boeckmann and Antônio de Góes. These elements follow the same principle of the old wooden elements of Moorish architecture: solution to the closure of structures. While looking for references to fabricate a 3D printed brick, it was natural to end up looking for elements that were already used in architecture. The hollow sections found in cobogós were perfect to spare material without compromising the stability of the structure. Re fabricate old elements paying an homage to our own backgrounds while having the chance to give it a twist. A trip in space and time.

To create the brick, we chose 5 different decoration patterns of cobogós. We constructed five solids with dimensions 21.67×21.67x2mm. For all of them we did an offset of 2mm to keep the boundaries required for the material not to break. Then we drew polylines to create the designs or rectangles. After a polyline was done, we did Extrude Closed Planar Curve with the same thickness of the original solid. With that we could erase the internal curves to avoid having unneeded geometry on the surface. Then we did Boolean Difference between the bigger solid and the ones created with the Extrusion of the Curves to make them hollow as a cobogó.

Traditional ceramic cobogós used in Brazil's Modern Architecture

Finally we categorized each cobogó as different layers and copied and alternated them to construct the mosaic pattern. After the first wall containing 6 bricks on the x-axis and 3 on the z-axis, we used Boolean Union to create a single solid. Then we deselected all Snaps, leaving only End and then starting constructing the remaining surfaces. Copy the first wall and then rotate it on the same edge. At the end with the 4 walls created, we joined them by using Boolean Union. The same process was done to create the top surface. Once it was positioned, we did a cylinder at the center of the connections with a radius of 19.5mm and thickness of 2mm. By doing a Boolean Split between the cylinder and the top surface, we were able to split them and delete the internal parts that weren’t necessary.

After that we extruded the cylinder to its entire height required, mirrored it for the other side of the brick and Boolean Union these elements to create the top surface. Afterwards we copied by the end point to create the base and finish all sides of the brick. The caps of the cylinders of the top, as well as the cylinder of the bottom, were left open in order to use less material and try to make the brick cheaper. Finally to close the brick we used Boolean Union for all the elements to join.

After the brick was a solid, we verified the edges using the Edges tool to make sure there were no naked edges.

After that, we made a Box with the dimensions of the Cage, and choose Analyze> Mass Properties> Volume Centroid to be able to find the midpoint of the area. Choose CageEdit>Select the Bench>BoundingBox> x=4, y=10, z=4 and grabbed the 4 centered points of the brick to Scale them with the Origin point based on the Volume Centroid drawn before towards the Center of the volume.

With that, what was a straight wall became a curved structure, that could only be constructed with new technologies, such as 3D printing. The old and the new – as always – walking together.

Cobogó: From Brazilian Modern Architecture to 3D Printing

iaac — Tue, 09 Nov 2010 02:11:17 +0000

Marcio Kogan's contemporary approach.

Traditional ceramic cobogós used in Brazil's Modern Architecture

After the brick was a solid, we verified the edges using the Edges tool to make sure there were no naked edges.

With that, what was a straight wall became a curved structure, that could only be constructed with new technologies, such as 3D printing. The old and the new – as always – walking together.

Lego brick – 3d printing

iaac — Sun, 07 Nov 2010 19:52:38 +0000

3D Printing a Neurone Brick

iaac — Fri, 05 Nov 2010 06:49:39 +0000

Team: Julian Hildebrand & Manuel Huerta

View the: Neurone Brick

“Lego Brick” MODEL and 3D PRINTING

maria carolina aguirre arteaga — Thu, 04 Nov 2010 17:59:42 +0000

by Carolina Aguirre/Carolina Miro

The most important part of the process was to find a way to relate the main anchorages of the brick and have a fluid way of connecting them to have a structure that supports all the brick. This was possible by taking advantage of the 3D printing facilities and using a series of modified pipes that follows a trace through the two main cores of the structure and at the same time cover the internal space.

Regarding the Rhino/Design process, a spline was used to trace a way that covered the entire brick diagonally. Then a Pipe followed that trace and used different diameters as forming the pipe to create gaps on its structure.

Then the same pipe served by mirroring it to form a kind of net that later would be covering the internal space of the brick by overlaying them. It was mirrored to the other three corners, one by one, until the entire brick was covered.

The next step was to connect this elements and at the same time create two core elements to complement the structure and make it supportive. The core structures required also to include the two respective anchorages. So it was proposed a symmetrical form, based on a spline whose form was determined by the anchorages given; and that would be revolved in its axe to be formed. At the end, the tubes intersected by the cores where trimmed, to allow the anchorages to be free to be used.

Finally, the model was ready to be exported and 3D printed.

neurone brick- Julian Hildebrand_Manuel Huerta

iaac — Thu, 04 Nov 2010 12:56:07 +0000

The concept of the brick consisted in the idea of filling its volume with a network-like structure of “neuron” geometries. Image below shows the reference geometry.

http://www.faqs.org/photo-dict/phrase/667/neuron.html

The modelling process of the brick would dtehrefore involve the creation of one abstract ” neurone” module which could then be repeated in a 3 dimensional array omitting certain position to create look throughs at certain points. Tools for the generation of this single module where mainly boolean substractions.

Cleaning process at DHUB:

…and finished brick module:

Fabrication process

iaac — Thu, 04 Nov 2010 10:24:49 +0000

This work is a collaboration between Ayber Gülfer and Jordi Portell and describes the fabrication process for the Lego-like-brick exercise in the Digital Fabrication Tools class.

The nurbs modell was converted to a mesh and exported as *.stl in order to send it to the fabrication laboratory.

Brick as nurbs beeing modelled in Rhino 4.0. Unifying the parts.

Nurbs transformed into mesh in order to submit to fabrication.

We rendered the modell with Blender 2.54 to see the final result. We assigned materials and lights in order to have a realistic look at the piece before fabricating.

Model checked and rendered in Blender 2.54 (view b).

Model checked and rendered in Blender 2.54 (view a).

We submited the file to the FabLab and where notified by the assistants that our model had no problems and could be fabricated in the first batch.

We went to the FabLab and recovered our fabricated modell with the colleagues that had their modell fabricated in the same bunch.

Cleaning the first powder layer. A batch of 4 bricks in the machine.

Cleaning the surface once removed from the machine.

Getting rid of the powder.

The most powder removed. One can see the general form.

Removing the powder from the inside with a paint brush.

Last operations before completion.

Cleaning the remaining powder from interstices with pressurised air.

The finished brick ready to be reinforced by projecting glue on it.

Finished modell where the fabrication layers can be seen.

The brick at Iaac. A rest of fabrication powder remained in the inner edges and has to bee cleaned.

Case Study 1: THE YAS HOTEL

maria carolina aguirre arteaga — Mon, 25 Oct 2010 21:26:51 +0000

by Asymptote Architecture
Abu Dhabi, UAE

The Yas Hotel is one of the main architectural features of the Yas Marina development. Asymptote envisioned an architectural landmark embodying various key influences and inspirations ranging from the aesthetics and forms associated with speed, movement and spectacle, to the artistry and geometries forming the basis of ancient Islamic art and craft traditions.

Of architectural and engineering significance is the main feature of the project’s design, a 217-meter expanse of sweeping, curvilinear forms constructed of steel and 5,800 pivoting diamond-shaped glass panels. This Grid-Shell component affords the building an architecture comprised of an atmospheric-like veil that contains two hotel towers and a link bridge constructed as a monocoque sculpted steel object passing above the Formula 1 track that makes its way through the building complex.

The Grid-Shell visually connects and fuses the entire complex together while producing optical effects and spectral reflections that play against the surrounding sky, sea and desert landscape.

The architecture as a whole “performs” as both an environmentally responsive solution and as an architecture of spectacle and event. The entire jewel-like composition of the project responds visually and tectonically to its environment to create a distinct and powerful sense of place as well as a breathtaking backdrop to the Formula 1 and other events that the building will celebrate.

case studies on digital fabrication

iaac — Sun, 24 Oct 2010 10:14:36 +0000

Chanel mobile Art Pavillion – Zaha Hadid

Hong Kong, Tokyo, New York, Paris
2008–2010

size: 29 m x 45 m, total 700 m²

http://www.zaha-hadid.com/home

The chanel mobile artpavilion was developed as a temporary exhibition space made of continuous arch shaped elements of fibre reinforced plastic and a membrane roof combined with a steel and aluminum structure. The spacial rhythm of the seams and segments of the arched building which are clearly visible also from the outside emphasized by additional lighting features creates strong perspective views throughout the building interior. On the inside the pavilion features a backlit translucent ceiling while the entrance area with its large roof light creates the transition from inside to outside space.

While the real building skin consists of several layers, its curved shape and details could well be represented by a 3D print.

Ivo 03 – Asymptote

2008

size: 60 x 35 x 18 inches

www.asymptote.net/

Asymptote designed Ivo _03, as wave shaped and unique table that features slumped glass suspended across a contiguous and abstracted surface of diamond-shaped facets for Meta, a new contemporary objects and furniture company created by Mallett Antiques. Ivo_03 has been exhibited in Milan, New York City, London and, most recently, at Design Miami from December 3 – 6, 2008.

The high degree of detail of facets within this hyperbolean structure could be ideally represented in a 3D print.

Case Studies

iaac — Sat, 23 Oct 2010 17:06:39 +0000

TAIPEI PERFORMING ARTS CENTER

B+H Architects

The Taipei City Government organized an international contest for Taipei performing activities, the project consist in three theaters including a 1500 seat Grand Theater and two 800 seat Theater, the purpose of the center will be also to establish connections to other world class theaters and attracts the international performing community to Taiwan, the construction budget is about US$ 124,600,000, this is a Project developed by B+H Architects and it shows the relationship between the skin and the structure as one element, related to each other, this Project was one of the many proposals that had been sent for the contest, but the winner project was the one sent by OMA and Rem Koolhas, even though this is a perfect example about how the structure can be related to the skin and become part of it, also it is important to say that this kind of project cannot be possible without the use of 3d technologies.

3D MODEL PRINTING SERVICE

This is a very interesting topic, because nowadays you can also design and sell your own ideas just by submitting a 3D digital file, that of course is going to cost you about US$ 2-3 per square centimeter and you will receive your 3d model in about 10 days, it’s interesting to see that this kind of services are becoming available for individual designers and not only for architectural processes but also for furniture, jewelry, pottery and becoming commercial,, also the designers can share their designs trough an online community, but again this wouldn’t be possible without the use of 3D technologies such as the 3D printers, but in a few time this will be more and more common.