Foam Model ..Horta Guinardo

Group Members

Andres Briceno   I   Siddhesh Kale   I   Jesus Armando Zabala   I  Ohad Meyhuyas

The Objective

The Aim of this exercise was to create a foam model of the barrios using the CNC Milling machine and learning the milling process.

The Process

Step 1: The zone assigned to our group (Horta Guinardo-Nou barris) consists of two hills and a mountain on the north west so we first prepared the terrain in rhino.

Step2: The buildings and the streets were projected onto the terrain.The building footprints were set to a plane at the lowest point of the respective building for the purpose of vertical extrution(using setPt command).

Step3: The building were extruded to their exact height using the data from Internet.

Step4: As it was not possible to print the mountains with the remaining barrio the mountain and hills were separated from the model to be printed later.

Step5: The file was made ready for printing and divided in two parts in order to fit in the foam sheet.

Step6: The Model ( without mountain and hills ) was printed on the CNC Milling Machine.

CNC milling

Sub Step 1: Fixing the sheet on the base.

Sub Step 2: Loading file on the Interface and running.

Sub Step 3: Vaccum cleaning the sheet.

Step7: The model is cut at the boundaries and cleaned using sandpaper.

Step8: To print the mountain and hills with the buildings on it.(Pending)

The Final Product

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Fabrication of the 1:2000 bcn model

Barrios: El Raval, El Gòtic, Sant Pere, Santa Caterina, La Ribera, La Villa Olímpica del Poblenou, El Poblenou, Diagonal Mar, Front Marítim del Poblenou

Students: Gamze Gunduz, Julian Hildebrand, Harshad Sutar, María Laura Molina Araujo, Antigoni Anna Anastasopoulou

For the fabrication of the mdf model through the laser cutter we created a 2D rhino file adapted in the map given to all the groups. We cleaned the useless lines and we kept only the ones to be cut and the ones to be engraved, having finally two layers.

For the fabrication of the foam model through the CNC Milling machine we created a 3D rhino file using the web for information regarding the divisions and the height of the buildings. We designed closed polylines, one for each building, organized in layers according to the number of floors and we extruded them by layer. We added the extrusion needed (3cm) for the base of the model and we transformed the polysurfaces into meshes. We finally divided our model, without cutting any buildings, in pieces and layouts according to the size the milling machine can accept.

After printing once we realized we needed to correct our digital file and reprint the model because of several reasons.

During the fabrication process the position of the model was changed by mistake having as result the missing of material in some points of the coast.

Also, there were some parts broken and some parts not well printed because of a problem of the machine which was then repaired.

Furthermore, we had to add a 3mm extrusion for the sidewalks required in order to make our part fit with the entire model and in order to have a better result in the non-built areas such as Ciutadella Park and coastline. In addition, we had to detail more a part of the model regarding the height of the buildings as well as redesign with more precision the buildings of great importance to make them easily recognizable.

Even if the new-final model was smooth enough and there was no need to be filed as the first one, in the coast the machine didn’t remove some material as it should have done, so this was done manually by filing with sandpaper this area.

Finally, in some cases the height of the buildings is not correct, not because of the digital file but because of the material used, that it hadn’t the required height.

rhino cam documentation:

http://legacy.iaacblog.com/digitalfabrication/2010/12/13/rhino-cam-documentation-for-foam-model-barrio-1_17_18/

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Assignment 1 – Brick, Harshad & Vittal

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Laser Cut Waffle Chair (process) – Owen_Sridharan

Find the PDF with the process of the Waffle Chair attached in the link below.

WaffleChair_Owen-Sridharan

The final design conceptual images.

The laser cutting process.

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Assignment #4 – Barcelona Model – Milling Machine

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Assignment #3 – The Bench – Laser Cutter

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Assignment #2 – The Brick – 3d Printer

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Assignment 3 Model Fabrication in the CNC Milling Machine_Barrio 5

Team members: Andreana Papantoniou, Carolina Libardi, Erina Filipovska

The aim of this assignment was to create a foam model of our barrio using the CNC Milling machine. We first prepared a 2d rhino file of our barrio which had to be printed in the laser cutter at the scale of 1:5000 and on which we discussed and examined various issues concerning the 3d printing process and the way of union the different barrios (boarders, designing methods etc.). The file comprised the streets, the blocks and the buildings, all organized in one layer in order to be engraved. The boarders of the barrio were organized in a second layer determining the cutting lines.

We created the 3d rhino file using the required information from the web and we organized the buildings in layers, according to the number of floors of each building, giving finally the corresponding height. We added the 3 cm base of the model and the 2 mm height sidewalks and we changed the scale into 1:2000. We converted the polysurfaces into meshes and union them all together.

A barrio (Camp de l’ Arpa) that has not been previously allocated to any of the groups was added to ours a posteriori. Finally, the model was printed successfully in one piece. Because of the different height of the materials, we had to cut our piece through horizontally manually, in order to fit with the neighbor areas.

The digital design process

The fabrication process in CNC Milling machine & the final model

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Digital Fabrication: CNC Milling model of Barcelona

The top portion of our Barrio, was left for last because it included Putxet, which has a mountain in the center and was saved for milling last along with the rest of the topography.  We have included the rhino cam and the steps taken to send the pending 3d file to the CNC milling machine.

For the link to the rhino cam tutorial, click below:

Barrio 16 – Putxet

For team members’ posts:

Yashaswini
Luz Michelle

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CNC milling model of Barcelona

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