D.H. / DEVELOPMENT#
1° Prototype / Cap whit luminescent cape#
Moodboard / sketches
This prototype responds to more visual and aesthetic characteristics, using optical fiber as a luminescent resource. This would be the evolution in terms of morphological and electronic design my modular cap (previous work assigment Computational Couture).
Process
In this case the process corresponds to a job (for the time being) of exploration and search of alternatives in terms of the design itself and its subsequent compatibility with the printing machines available in the Lab.
- First alternative: design of plot in plane, for later printing in flexible filament. While the pattern resembles my initial idea, getting to a good finish with this filament is more difficult. For which I have decided to continue with alternatives to reach a single piece (helmet) printed on rigid filament.
- Second Alternative: Aesthetically, this design is very similar to that proposed in my sketches. It would be necessary to polish the base form.
- Third Alternative: Parametric design made with Grasshopper, although the spherical shape would facilitate the correct impression, aesthetically I have not yet achieved a final result that I like.
Definitive helmet
Finally, the alternative that most corresponded to my sketches was to model “manually” in Rhino the helmet in 3D. For this I had to download the CLAYOO plugin (only suitable for Rhino 5 version). This tool allows modeling organic morphologies, segment and draw “bridges” between the main axes that joined the ends and contour of my helmet.
The print of the helmet was carried out on a machine (PRUSA) with PLA filament. To make the form go perfectly, I decided to print it backwards and add supports.
Data:
- The time it took to print said piece was 18hs.
- The time it took me to remove the supports (manually with the help of a clamp) was 2 hours approx. It was not difficult and fortunately the piece was not damaged.
- Finishing: to get the piece to have a perfect finish, without noticing the lines of print and at the same time mate, I took my time and dedication, since the conventional varnishes that are on the market gave it a glossy finish that does not It was the desired one. The first was to sand the piece, second spray it with the Aerosol that is used to remove scratches or imperfections in the body of the cars, let it dry and re-sand (I repeated this step 3 times). This product is gray, so as a last step, paint the piece with matt black spray paint.
Visor
To achieve that the visor could fit with the helmet and also had curvature, I decided to make a 2D design to be printed flat in flexible filament (filaflex).
For the lines to have a morphological relationship with the hull, that is, organic lines and volume, I designed the visor in the following way:
- 1: Draw only flat lines delimiting contours and internal segments (mirror).
- 2: Export the curves to Grashopper and use the Dendro command (Provides multiple ways to wrap points, curves and meshes as a volumetric data type, allowing you to perform several operations on those volumes.) Dendro includes components for Boolean operations, smoothing, compensation and transformation).
- 3: Bake mesh and then again in Rhino add the insert pieces.
- Note: the resulting model is a very heavy file, so it is not possible to upload it in SketchFab
The printing of the visor was carried out on a machine (REPRAP) with Filaflex filament.
Data:
- The time it took to print the piece was 40 min.
- Parameters suitable for printing with Filaflex: Bed Temperature = 0 (not needed) / Print speed = 15-40 / Retraction Distance = 3,5 - 3,9 / Retraction Speed = 40 / Z-Hop = 0-0, 08 / Layer Height = 0.1-0.25
Support part / locking system
To join the pieces listed above, design a third piece to print in 3D, which contains systems of inserts, both for the helmet and for the visor. Internally it has a segment with perforations to later sew the layer. This piece also serves to contain, hide and carry the electronic system.
- Assembly of the pieces
Luminescent layer
The textile used for the layer was Organdí, it has transparency, body and it is also possible to cut it with the laser machine without having to add seams. To do this, design the Rhino pattern in one piece. The layer is the element that holds the optical fibers, and is attached to the helmet support by stitching. In the line that contours the head, 5 points are located (where later the LEDs will be located) from there, the fibers spread out like hair, this effect I made by locating and embroidering the fibers by hand. This work took me 3 days, since in total the layer contains more than 50 fibers.
Data:
- I used conventional optical fiber (2mm) and to achieve that it had reflectance along its path, I recorded a gradient pattern of horizontal lines with laser previously.
- To encapsulate the fibers, I printed 3D parts (tubular) and a cap for the led, and so that the beam of light does not escape.
Electronic circuit
This system allows controlling through the button (which is incorporated in a right side of the cap) not only the on and off, but also the transition of the lighting effects previously programmed with Arduino (fade, static, blinking).
The electronic system that has the cap contains the following components:
- 5 high brightness white LEDs 20mA 3.0V
- 5 Resistances of 10 ohm
- Transistor
- Push button
- Part of developer development board for ATtiny85
- ATtiny85
- Lipo 3.7V rechargeable battery
- Connection through cables
Simple pushbutton code
void setup() {
pinMode(13, OUTPUT);
pinMode(2, INPUT);
}
void loop() {
if (digitalRead(2) == HIGH) {
digitalWrite(13, HIGH);
}
else {
digitalWrite(13, LOW);
}
}
Blink code
void setup() {
// initialize digital pin LED_BUILTIN as an output.
pinMode(LED_BUILTIN, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(LED_BUILTIN, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}
Fade code
int led = 9; // the PWM pin the LED is attached to
int brightness = 0; // how bright the LED is
int fadeAmount = 5; // how many points to fade the LED by
// the setup routine runs once when you press reset:
void setup() {
// declare pin 9 to be an output:
pinMode(led, OUTPUT);
}
// the loop routine runs over and over again forever:
void loop() {
// set the brightness of pin 9:
analogWrite(led, brightness);
// change the brightness for next time through the loop:
brightness = brightness + fadeAmount;
// reverse the direction of the fading at the ends of the fade:
if (brightness <= 0 || brightness >= 255) {
fadeAmount = -fadeAmount;
}
// wait for 30 milliseconds to see the dimming effect
delay(30);
}
2° Prototype / Lamp Hat#
Moodboard / sketches
This prototype is the evolution of one of my previous works: Hilo Hat, assigment: OPEN SOURCE HARDWARE: from fibers to fabric. Using the resource of a structure that supports the “tissue”; this time the structure is part of the hat, it is the same module that repeats in a radial way, supported by transversal fittings. The technology I used was laser cutting and the material: transparent methacrylate. To complete the morphology this time the thread is fisherman, thus generating a translucent volume. Said volume of symmetrical framework serves as support for the optical fiber that runs through organic lines.
Technical drawing
The 2D drawing of the pieces was made in Rhino and then laser cut. The pieces “profiles” that give shape to the hat contain the holes where the fisherman’s thread will then pass in the form of a constant spiral (starting from the top extending to the bottom of the volume).
Laser cut
Laser cutting / methacrylate from Betiana Pavon on Vimeo.
The parameters for laser cutting (3mm methacrylate):
- Speed = 0.8
- Power = 100
- PPI / Hz = 20,000
For engraving:
- Speed = 100
- Power = 90
- PPI / Hz = 20,000
Electronic circuit
The electronic circuit of this hat, is a simple circuit since the space to be placed is reduced and the volume is totally transparent, it consists of the following components:
- 4 high brightness white LEDs 20mA 3.0V
- 1 40 Ohm resistors
- Swich On-Off
- Lipo 3.7V rechargeable battery
To house the circuit, design a circular container with lid to print on transparent filament; it also contains 4 tubular terminals where the LEDs fit inside and the optical fibers come out.
3° Prototype / Cap Aurora#
I decided to include the Cap Aurora in my final project presentation, and that it was one of my most loved and accomplished prototypes along my way at Fabricademy. It was decisive in my decisions when selecting the Assignments with which I was going to work and to emphasize in this project (COMPUTATIONAL COUTURE, E-TEXTIL & WEARABLES). The creation of this prototype came hand in hand with my beginnings with Grashopper, the program that wants to continue exploring its innumerable possibilities when designing.
Morphologically, it also marked a path to follow: that of the fluid forms and modular constructive systems of the accessories.
Prototype selected in the contest “DIGITAL MADE” of Fondazione Mondo Digitale / Roma / Italy / 2019
- Electronic system by Ana Correa
Prototype selected in the contest “DIGITAL MADE” of Fondazione Mondo Digitale / Roma / Italy / 2019 from Betiana Pavon on Vimeo.
Documentation and process of this prototype
Prototypes that were left on the way.#
These are designs and advances in prototypes that I had initially included as part of the DECONSTRUCTIVE HEADS collection, but for reasons of time, I decided to focus on the most advanced ones and unify the final collection using only light and fiber optic as a performative resource.
Hat burns my head
Responding to the wishes of most of the respondents, the first prototype of my hat collection proposes the “mutation of color” as a manifestation.
- Input: when another person speaks loudly or if you are exposed to a loud volume of sound a vibration sensor integrated by an electronic circuit to the hat, detects, reads and reacts to these values.
- Output: After receiving the signal from the sensor, by heating system, the wire sewn into the helmet of the hat, which runs through the surface thereof, warms up and generates the color mutation of the thermochromic ink (going from Black to Transparent) .
The idea is to build the hat by mixing different techniques and materials:
- Helmet: replacement of the felt with egg carton, bio molded material (vacuum machine) on a mold of its own design milled on the CNC machine. Subsequently sanding and varnishing with alginate + thermochromic ink.
- Wing of the hat: acrylic laser cut
- Union of pieces: by stitching.
Moodboard / sketches
Process
- I start modeling 3D shapes in Rhino, both for the volume of the helmet and for the modular and removable wing.
- For the last, I used a block of cork, since it is a resistant but lightweight material at the same time, what allows to reduce the hours of milling (in comparison with the wood). This process corresponds to that used in the traditional headgear, including new tools and softwares for the creation of lasts and components, where after can be molded an infinity of materials.
- For the wing, I printed in 3D stepped demountable modules.
- After experimenting with several recipes, always taking the paper or cardboard as the base material, I came to the conclusion that to mold the best result was with cardboard and a more solid and viscous mixture, using potato starch as a binder.
- To achieve a uniform finish I used the vacuum machine, this process allows the material to adapt faithfully copying the shape.
- Image of the first sample of the molded and dry material … I must continue working on the finish, but functionally the material complies with the stiffness characteristics necessary to be used as a support, to which the electrical circuit and conductive wire weft will be applied- resistive to achieve color mutation. Therefore, this material should not be conductive and at the same time isolate the head.
Modular Hood with movement
Moodboard / sketches
Materials / Tools#
Qty | Description | Price | Link | Notes |
---|---|---|---|---|
1 | Filament PLA | 18.00 $ | 3D NOU | http://tresdenou.com/es/53-pla-175-mm-1kg-black.html |
1 | Filament FILAFLEX | 17.00 $ | 3D NOU | http://tresdenou.com/es/146-filaflex-3-mm-250gr-white.html |
1 | Arduino board | 20.00 $ | https://www.amazon.es/Arduino-UNO-A000066-microcontrolador-ATmega328/dp/B008GRTSV6/ref=sr_1_6?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=arduino+uno&qid=1557391466&s=gateway&sr=8-6 | |
100 | Cables - Jumpers | 6.99 $ | https://www.amazon.es/Macho-Hembra-Macho-Macho-Hembra-Hembra-Prototipo-Protoboard/dp/B01NGTXASZ/ref=sr_1_1_sspa?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=CMNK4TRJII02&keywords=jumpers+arduino&qid=1557391522&s=gateway&sprefix=jumpers+%2Caps%2C163&sr=8-1-spons&psc=1 | |
20 | Leds | 4.06 $ | https://www.amazon.es/sourcing-map-Diodos-componentes-electr%C3%B3nicos/dp/B07H9R1KND/ref=sr_1_27?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=leds+blancos+electronica+5mm&qid=1557391578&s=gateway&sr=8-27 | |
1 | Optical fiber | 15.99 $ | https://www.amazon.es/CHINLY-pl%C3%A1stico-resplandor-estrella-conductor/dp/B01MQVKDL6/ref=sr_1_7?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=fibra+optica&qid=1557391968&s=gateway&sr=8-7 | |
1 | Optical fiber Slide Show | 21.42 $ | https://www.amazon.es/infilled-flexible-di%C3%A1metro-transparente-conectarlo/dp/9875321540/ref=sr_1_fkmr2_1?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=fibra+optica+reflectancia+lateral&qid=1557392067&s=gateway&sr=8-1-fkmr2 | |
1 | Nitinol / Flexinol | 18.00 $ | http://amazon.com/test | |
10 | Switch | 4.04 $ | https://www.amazon.es/DealMux-Posi%C3%A7%C3%A3o-Alternar-Switch-Making/dp/B078LTC7R3/ref=sr_1_1?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=aswich+on+of&qid=1557391882&s=gateway&sr=8-1-spell | |
10 | Button | 10.99 $ | https://www.amazon.es/Aussel-Valores-pulsador-Momentary-Assortment/dp/B01N67ICEC/ref=sr_1_7?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=boton+pulsador+electronica&qid=1557392174&s=gateway&sr=8-7 | |
5 | Rechargeable batteries | 16.99 $ | https://www.amazon.es/Creation%C2%AE-4pcs-1200mAh-Bater%C3%ADas-cargador/dp/B01D2TPX98/ref=sr_1_2?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=baterias+lipo+3.7&qid=1557391689&s=gateway&sr=8-2 | |
5 | ATtiny 85 | 19.28 $ | https://www.amazon.es/Just-Honest-piezas-ATTINY85-20PU-compatible-Arduino/dp/B00XRUHV7U/ref=sr_1_3?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&crid=1V201GCRMW3HS&keywords=attiny85&qid=1557391732&s=gateway&sprefix=attiny%2Caps%2C166&sr=8-3 | |
1 | Conductive thread | 5.14 $ | https://www.amazon.es/Baoblaze-Costura-Wearable-Inoxidable-Bordado/dp/B01N4E1B60/ref=sr_1_21?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=hilo+conductivo&qid=1557392296&s=gateway&sr=8-21 | |
1 | Development board for ATtiny85 | 3.97 $ | https://www.amazon.es/ROUHO-Programador-Desarrollo-Attiny85-Attiny13A/dp/B07N6JK8GM/ref=sr_1_fkmr1_2?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=piezas+de+tablero+programador+de+desarrollo+para+ATtiny85&qid=1557392569&s=gateway&sr=8-2-fkmr1 | |
1 | Metacrylate 3mm | 28.91 $ | https://www.mwmaterialsworld.com/es/materiales/metacrilato/metacrilato-trasparente/plancha-de-metacrilato-transparente-cristal.html | |
1 | Super glue | 8.99 $ | https://www.amazon.es/MMOBIEL-Pegamento-industrial-multifuncional-transparente/dp/B072XNPQ4B/ref=sr_1_2?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=pegamento+para+acrilico&qid=1557392886&s=gateway&sr=8-2 | |
1 | Fabric Organdí | 12.99 $ | ||
2 | Fisherman’s thread | 10.99 $ | https://www.amazon.es/El%C3%A1stica-Abalorios-Transparente-Estirable-Fabricaci%C3%B3n/dp/B07PHS1T73/ref=sr_1_1?__mk_es_ES=%C3%85M%C3%85%C5%BD%C3%95%C3%91&keywords=Hilo+transparente+0%2C8mm&qid=1557393154&s=gateway&sr=8-1 |