The Idea: We deal with digitality as a shaping factor. How does a practical design and the associated theoretical thought framework behind it change when digital processes play a leading role? This requires extensive individual research in which we analyse where in the design process, with what intention and intensity hardware and software, algorithmic calculations and digitally controlled production methods are used. How does the formal quality of the result change? How does the use of powerful calculation of formal, constructive and perhaps also content-related elements change our work as designers? How does our focus, our activity? In the semester, we use the digital workshop intensively from the beginning. With the theoretical background knowledge and acquired Rhino/GH skills, we develop individual objects, models and prototypes. Using the possibilities of the digital workshop, these physical form with the possibilities of the digital workshop. Among other things, the aim is to explore how objects change during the transition from digital to physical form, what role the material plays in this and what parameters are added when controlling production machines.
timeline
The Aim: With the work done in this semester, we achieve a deep practical and theoretical understanding of Computational Design. This creates a foundation for personal development. Rhino is a tool used intensively in design studios. Knowing it is a very pragmatic advantage. Grasshopper and node-based design is an interesting and challenging way of thinking about design. The visually represented parametrics, understanding formal relationships by looking at them is not easy, but holds new formal results that are difficult to achieve in any other way. Working with the various 3D printing processes and other tools of the digital workshop empowers an independent and confident use of these technologies and sharpens the understanding of digitally controlled manufacturing processes. The aim of the semester is to produce designs or series of experiments that map a thorough understanding of parametric design and digital fabrication.
In my research, I have moved on different levels. Through my involvement with Grasshopper, I looked into various plug-ins and their possibilities. This level was mainly influenced by what I would like to learn and can acquire as a skillset. This also led to the next focus of my research. Through the newly opened Xlab for robotics and AI at our university, I wanted to use the infrastructure and work with the two collaborative robotic arms UR5 and UR10. I looked deeper into 3D printing with the help of different robots. Most of these projects are in the context of architecture and lightweight construction. However, I wanted to work on a smaller scale and the questions of stability or statics were rather secondary to the questions of aesthetics, haptics and new material properties such as felxibility through the structure.
food
food
food
food
food
food
food
food
In this workshop instructed by Tom Witschel, we learned how to use 3D printing more actively. How can we control the machine directly and in this way influence the individual printing properties? With the help of Grasshopper for Rhino we wrote a script that gives us the possibility to generate G-code ourselves. This made it possible to control and adjust parameters such as the printing temperature or the extursion rate separately and to optimise or change the printing result. Through curves we created a loft, which determines the surface of our object, this was transformed by the script into a continuous polyline, which resulted in the toolpath of the printer.
Through Attractor Point, Atracctor Curves or Attractor Images we were able to influence the surface in a controlled way and create patterns.
The workshop was a very good basis for further work with advanced 3D printing.
Project idea: Starting with 3D printed textiles, I would like to explore what requirements materials need for clothing or interaction with the human body and how these new, perhaps partly speculative materials can be produced with the help of digital manufacturing methods. What combinations of materials result in new functions and properties for the material? How can I produce them in a meaningful way? When does it make sense to rethink materials for clothing or when does it become a real alternative to conventional textiles? A kind of collection or overview of manufacturing processes for materials that can be worn on the body could emerge. I am very interested in digital fabrication and its impact on aesthetics and my design. Here I would like to find a way to make the material samples visible in different ways and also deal with them on a meta-level.
rebrief
concret goals and methods: Acquiring hard skills is one of the most important goals for me in this project. This includes working more and more independently with Rhino and Grasshopper, but also expanding and deepening my knowledge of various machines in the digital workshop. In particular, I would like to expand my skills in the various 3D printing processes FDM, SLA and SLS and get to know and explore the handling, control and possibilities of the UR5 and UR10 robot arms and the DexArm. In addition, I would like to learn how to program simple websites and HTML, CSS and generate renderings in keyshot for my documentary. One method should be to limit myself to small material samples for the "end result", which can be produced quickly and thus offer the possibility of creating variants in order not to get bogged down with the question of the end product and set my expectations too high. I also want to continue to work out what approaches to a project work for me. How do I want to work and which methods help me? In addition, I ask myself how I can sensibly define sub-goals so as not to be overwhelmed by having to do everything in parallel and losing the overview.
rebrief prios
Silkworm: is a plugin that translates Grasshopper and Rhino geometry into GCode for 3d printing. Silkworm allows for the complete and intuitive manipulation of the printer GCode, enabling novel printed material properties to be specified by non-solid geometry and techniques of digital craft.
Project Silkworm is an open project to develop the concept of digital craft via the resources of open source 3d printing technology. The revolution of 3D printing is seeing a rise in novel methodologies of material design communication, from concept through to fabrication. Now additive processes can be manipulated through data driven logics programmed directly by the designer. Silkworm offers the designer a vocabulary to choreograph these processes and develop the way the printed object is conceived.
silkworm screenshot
letter
letter
letter
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analog character interchange
printing test
printing test
printing test
printing test
printing test
printing test
After a few trials and the right start and end code, I was able to start my first attempts. All results were printed with an Ultimaker³ and in PLA.
In the first printing session I focused on testing how far the strings can be stretched between the ridges without becoming uneven due to the extursion. I also tested different diameters for the ribs to see how small the diameter can be without the strings coming loose and being continuously attached to these nodes. In addition, I have also tested which angles of inclination are possible at which the grid body remains intact.The result in the last photo is from a faulty Grasshopper script. Out of curiosity whether it is possible to print a new ridge on a stretched string, I printed the faulty file anyway. Unfortunately, I could not create this phenomenon in other geometries, but I find the approach very exciting and worth exploring.
All the G-codes used for this are linked here and also in the other print sessions on the right and can be downloaded to better understand the results here or to take values such as printing temperature, printing speed or extrution rate.
↘Download the G-Code1
↘Download the G-Code2
↘Download the G-Code3
printing test
printing test
printing test
printing test
printing test
printing test
In the next series of experiments, I continued to work on the inclinations and rotations and started looking for a suitable example geometry.
This is how the upper results came to be. With every new grid body, you first have to find the right values to get a successful print result. The parameters that had the greatest effect on the print quality are: The extrusion, the printing speed and the printing temperature.
Especially the printing speed influences the uniformity of the strings. The slower the string is stretched from one ridge to the next, the more evenly it stretches and gets a consistent diameter. In addition, the servo motors of the printer move less at slow printing speeds and there is therefore less vibration, which influences how well the ridges can be built up layer by layer, which is particularly important for inclined geometries.
food
food
food
food
food
gentle whispers for clean dining
schreenshot grasshopper
schreenshot grasshopper
schreenshot grasshopper
schreenshot grasshopper
schreenshot grasshopper
schreenshot grasshopper
schreenshot grasshopper
schreenshot grasshopper
schreenshot grasshopper
3d print green vase
3d print green vase
3d print green vase
3d print green vase
This series of experiments deals once again with stretching the strings evenly over longer distances and then crossing them. Through the knowledge gained and discussions after the interim presentation, I wanted to further investigate the property of flexibility. The material PLA, which I used for all experiments, is firm and rather brittle, but by processing it into such thin strings, not the material itself but the printed objects became flexible.
I changed my shape and the resulting toolpath so that the strings intertwine at certain points but do not join at that point. Again, this took many starts before the threads stopped sticking together and the printed result was a success. As a result, fewer ridges are needed and more complex and stable objects with the above-mentioned properties are achieved.
3d print green vase
3d print green vase
schreenshot grasshopper
3d print green vase
3d print green vase
3d print green vase
In the fourth phase of experimenting, I followed up on last week's work. I constructed more complex shapes with additional inclinations and changed the toolpath to create even more of these interweavings. The inclinations in the geometry also made the intersections 3 dimensional, which gave the objects extra stability. Another observation in this series was the translucency and how it changed depending on the spacing and number of layered string curtains.

Watch the video in the final presentation to see the objects in motion and better understand their tactile qualities.
schreenshot grasshopper
schreenshot grasshopper
schreenshot grasshopper
food
food
food
food
printing head
printing head
A next step can be to combine the knowledge and skills gained with work on a collaborative robot arm. The objects can be scaled well and their print settings adjusted so that one can print with the robotic arm. I find this approach interesting because the robot arm expands the printing space in size and height, but also has many more movement possibilities due to its six axes, which make non-planar printing possible and aspirational.

To control the robot, you can also use Grasshopper and the Robots plugin. With a 3D model of the self-built print head, I was able to create print simulations with the help of the plugin and so digitally trace the toolpath to avoid errors and accidents before the real print. The linked Grasshopper script only needs a polyline as input for the toolpath of the robot and can then be simulated.

Videos and Animations by Wayra Aguilar
Photos by Wayra Aguilar, Valena Ammon, Yiyun Huang, Anniek Timmermann

Impressum

Angaben gemäß § 5 TMG

Wayra Aguilar
Reilstr 22
06114 Halle (Saale)

Kontakt:
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E-Mail: wayra.aguilar@gmail.com

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Impressum der Kanzlei Hasselbach, Bonn
printing in mid air
an Experimental Approach to 3D Printing
This semester I have been working on experimental 3d printing and controlling collaborative robots. with „Printing in mid air, an experimental approach to defaults in 3d printing“ i dealt with a characteristic of 3d printing that would usually be considered as faulty. Stringing, also known as oozing, happens when filament oozes out of the nozzle while the extruder is moving from one location to another. even though the extruder does not receive any command to convey the filament while it is traveling along this path, the portion of the filament that has already been melted tends to naturally drip off the nozzle, leaving behind very thin strands of plastic. I wanted to intentionally control this phenomenon and use it as a design and construction tool.

My goal was to print into air. With the help of Silkworm, I could control the extrusion of filament, temperature, printing speed and several other parameters separately from one another. I was able to control the path between two points in a way that a string was printed in the air between the two printing points. I eventually transferred this process to various grid geometries. this resulted in several studies on the properties of the printed objects which, even though the PLA filament didn’t have flexible characteristics, gained different material properties such as translucence, flexibility and a very low consumption of material through my printing process.
Wayra Aguilar
Binary Matter 2.0
WS 2020/21

Prof. Christian Zöllner
MA Amelie Goldfuß
Tom Witschel

Burg Giebichenstein
University of Art and Design Halle