Patronaje Digital

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A simple T-shirt

A Simple shirt, is not so simple

Everyone needs a basic shirt. Here you can learn how to create this sleeveless top  tailored to your own size. If you are using the Seamly 2D pattern making program, I created a pattern that you can download and change the measurement table to your own size.  If you are not familiar with this program you can also choose from 3 different standard sizes (S, M, L). The print I’m working with was created by Aldana Persia, in Fab Lab Barcelona with thermochromic silk screen printing paint, therefore it changes colour with temperature change.

STEPS

1.Print the pattern and cut out the pattern pieces,  working on the interior side of your fabric. 
2.Using the Overlock machine, or a zig-zag stitch (if you don’t own an overlock machine) sew along the sides and the shoulders of the back and front of the T-shirt. As well as one side of every bias stripe.




3.With right sides facing together, sew the front and back shirt together the shoulders and the sides.



4.Press the seams

5. Sew the end of the stripes together to create a circle.


6.Pin and stitch the stripes on the neckline, right sides facing together.

7.Make cut-ins on seam allowance with small scissors. Make sure that you don’t cut the actual seam or other parts of the T-Shirt.


8.Flip and press the stripe to the inside of the neckline. Pin and stitch on top to keep it in place.

9.Repeat the same steps (4, 5,6, 7) to finish the armhole.
10.Finish the raw bottom with overlock machine (or zig-zag stitch), fold the seam inside( 1cm) and stitch on top.

voilá.. your custom made the shirt is ready!

Download the T-shirt file at oscircularfashion.com

Pattern and documentation made by Fanni Huszár

 

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Thermochromic research

Thermochromic inks have the property to change color with temperature. In the mid-sixties, laboratories started to develop thermochromic liquid crystal materials. That research emerged at the same time as the first digital watches based on liquid crystal technology.  Nowadays one can find various playful reactive paints like hydrochromic, photochromic, glow in the dark e.t.c.  Instead of using an electric current to change the crystal structure, heat is utilized. We used thermochromic ink with silk screen printing and digital embroidery of conductive thread,  for the creation of garments that are reacting to heat and are ¨ expressive ¨. They charge color as a visual feedback, while providing heat to the wearer. Even though the technology is not new, they create a ¨magic¨ effect and from all our exhibition, where the most popular and comprehensive for the wider public. 

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Thermochromic samples with conductive threads, Fab Textiles, Mazda Space, Barcelona, 2018

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Initially the research was the application of thermochromic ink on different types of fabrics : jeans, cotton, neoprene, 3d knitted and synthetic. Different thermochormic inks were tested. The main supplier was SFXC . One can buy directly a paste ready for silk screen printing or the pigment powder and mix it with a base of silk screen binder. The pigments and inks are reacting to different temperatures. If the desired result is to change by the body temperature (passively) the 31°C is fine. If the effect is activated by a heated pad or conductive thread-wires then it is recommended to use a higher temperature , such as 50°C. After various tests, we selected a white neoprene like fabric to apply the silk printed design.

The second part of the project involved testing different conductive -resistive threads to understand how the system works best. For making a heated circuit , the thread needs to be RESISTIVE, so that the current goes through ¨more difficult¨ and it makes the thread heat up. At the same time, it can not be too resistive because it will require a lot of power. We tested threads with different resistance : Karl-Grimm High Flex 3981 (fine copper fiver plied with synthetic fiber core), Karl-Grimm High Flex 3991 Silver 14/000 (fine copper fiber coated with silver plied with synthetic fiber core), Elitex (235/34 polyamide plated with silver), Shieldex (silver plated synthetic thread) and Bekinox VN (fine stainless steel fiber plied).  The two Karl-Grimm and the Elitex threads were difficult to use with the sewing machine and the Bekinox VN was the one that worked the best for use with heat. We order a thread from MADEIRA, a distributor in Spain and the thread arrived the next day!

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Thermochromic tests, Fab Textiles, Barcelona, 2018

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Thermochromic ink and conductive threads test, Fab Textiles, Barcelona, 2018

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At the end of this research, we decided to develop a Thermochromiconductive Top* that changes pattern according to conductive threads linked to an Arduino system. The Arduino is connected to a Bluetooth device (Adafruit M0 Feather) which allows one to control the pattern of the dress with a mobile phone. The code implemented in the Arduino produced several heating combinations, such that lines appears in the thermochromic paint, gradually changing the shape of the pattern.

All conductive threads have different properties, the resistance per meter is different in all of them. The ideal conductive threads to build a heating source are made of steel or copper.

Some recommended conductive threads like Bekinox stainless steel thread from Bekaert or Copper thread from KarlGrimm.

The best scenario would be to have a 6-50 Ohm conductive thread with a current of 300-1000 mA flowing through it. The time the thermochromic ink takes to change its color is directly proportional to the amount of current. For 300mA it will need more time than for 1000mA.

To calculate the voltage we just need to use ohm’s law formula:

Voltage equals Current times Resistance or V = I x R

We know our conductive thread resistance(measured with the multimeter), for example 32 ohm, the current has to be a value from 300mA to 1000mA.

For 300mA:

V = 0,3 * 32 => V = 9,6V

For 1000mA:

V = 1 * 32 => V = 32V

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Thermochromiconductive Top, sewing detail, Fab Textiles, Barcelona, 2018

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Thermochromiconductive Top, sewing detail, Fab Textiles, Barcelona, 2018

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Thermochromic ink test with conductive thread, Fab Textiles, Barcelona, 2018

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Thermochromiconductive Top, Fab Textiles, Barcelona, 2018

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Thermochromiconductive Top, Fab Textiles, Barcelona, 2018

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Our Thermochromiconductive Top project made us realize that body heat was causing undesirable changes to the pattern. The thermochromic inks we were using were too sensitive, so we decided to remove the conductive threads and create a dress with thermochromic ink only.

Anastasia designed a form-fitting dress with an organic pattern representing the body flow. The model of the dress was conceived on Illustrator and laser cut with the lab Trotec. The motif was screen-printed before assembling and sewing the pattern of the dress.

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Digital file, Thermochromic Dress, Fab Textiles, Barcelona, 2018

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Screen-printing, Thermochromic Dress, Fab Textiles, Barcelona, 2018

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Thermochromic Dress, Fab Textiles, Barcelona, 2018

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Thermochromic Dress, Fab Textiles, Barcelona, 2018

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Body flow, Thermochromic Dress, Fab Textiles, Barcelona, 2018

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If you like our Thermochromiconductive Top and the Thermochromic Dress designs, you can download the files for FREE on our Circular Open Source Fashion plateform :

 

MATERIALS:

Thermochromics: SFXC

Resistive Thread : Spanish distributor: Madeira

Conductive yarns : Shieldex

Bekaert

ELECTRONICS:

  • Arduino UNO board
  • Transistor, TIP122 or IRLZ24N or IRLB8743
  • Conductive thread
  • Jumper wires
  • Protoboard
  • Variable DC power supply

Download from Github

ADDITIONAL RESEARCH

KOBAKANT

Dynamic Textile Displays

Instructables

* Thermochromiconductive Top project by :

Team Coordinator : Anastasia Pistofidou

Material Designer : Rose Ekwé

Fashion Designer : Clara Davis

Programmer :Angel Muñoz

Photographer : Clara Davis

Model : Rose Ekwé

 

* Thermochromic Dress project by : Anastasia Pistofidou

Photographer : Clara Davis

Model : Rose Ekwé

 

Article written by Anastasia, Clara & Rose

 

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Parametric Origami Hat- Hatori!

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hatoriWThe idea behind the hat was to create a 3D matter out of a 2D production, laser cutting, through origami folding.

Using a program like Rhinoceros with Grasshopper plug in, one can play with parametrics of the hat to personalize it. The process starts with laser cutting desired fabric to eventually be the outer layers and the skeleton. Next, they are glued together layer by layer, occasionally placing them in the vacuum press. Once dried, the folding process starts and a ribbon to hold the foldings is placed on the inner side of the hat. We have developed different techniques of making the origami hat from different materials. The material is the most important if we want to make an origami directly out of one textile fabric layer.  The textile should be thick enough to maintain the folds. The stripe that goes around the hat is actually the part that maintains the whole origami. It can be out of the same material or it could be also elastic so that the Hatori fits and stays in your head better.

Here are some origami versions that we made in Fab Lab Veritas, in Costa Rica, during the International Course on  Digital Fabrication Technologies Applied in Fashion. Each student chose different material to work with, customized the Hatori variating in the number of folds, the angles and adding custom patterns for perforations or engravings.hatoriW1 hatori13w hatori7w

Here is the step by step process for the 3 layer sandwich technique where one can use any kind of fabric.

Step by Step Process

  • Cutting out the internal skeleton out of cardboard with 1mm offset
  • Iron the interior fabric that comes with glue on the cardboard in order to fix their positions
  • Place and iron the upper layer (any fabric, it this case the pink one)
  • Fold the circular ears in between so that they stay inside ( you can also leave them outside according to the aesthetics you want)

origami hat

This method of 3 layers is more complicated but has the benefit of playing with light and transparency. We integrated and RGB addressable stripe in the interior of the hat and the effect looks like that:

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Laser cut aprons

In the fab textiles we made a laser cut apron for the fab lab members. The aprons are made from raw denim and they contain special pockets for the fab lab tools.

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Seamless


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Seamless: Digital Fabrication jacket uses a variety of digital and analog tools.  With the use of digital computing and fabrication methods we are able to rapidly prototype and assemble new designs.  You can use any 2D or 3D software to create patterns ready for cutting.  The machines allow a us a wide range of possibilities, so try to take advantage of the accuracy, precision, and repetitions these machines can achieve.
If you don’t have them, these tools can be found at your local Fab Lab, tech shop, or digital fabrication laboratory (if you don’t have them at home, and aside from the laser cutter, you probably will) book a time slot for fabrication with your local fablab or tech shop.

Recomended Tools & Materials:

Sewing Machine, Needle & Thread, Laser Cutter, Fabric (3meters), Pattern

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Most materials are suitable for this application, and depending on the type of effect you would like to create, a stiffer material, preferably felt, neoprene, firm interlock knit, will stay in place, where a chiffon or silk will have more mobility.

Digital Tooling: Find your pattern.  Weather you make a shirt, dress, jacket, or pants we can create patterns and cut and parametrically design clothes.  Find out the size of the laser cutting machine so you know how the cut extents of material will be.

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Small scale! MAKE A SMALL PROTOTYPE.   Laser cut on paper or any other extra material your designs.  Sew or pin together to make sure everything fits well and is constructable.  adjust your model and choose the details you want to use.  You can have many variations or one consistent pattern.   You’re the designer, but remember to play around and have fun.

Rescale your model and fit your pieces within the constraints of the material as well as the laser cut and send your file.  Place your material on the bed, make sure there are no creases, and is taped down.

Fit and pin your final pieces together and sew!

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We are constantly searching for new forms and new ways to make the seamless designs. here you can see the prototype on paper laser cuts which will be a wearable collection.seamless paper
catalogNew forms and ideas in neoprene laser cuts are ready for the new collection.fabrics1 IMG_3410

 

The project is an investigation that covers the last years in the Fab Lab in order to rethink the seam and explore it as a design element in clothing. The idea is to use digital manufacturing as a tool for the development of digital joins to make a collection in laser cutting machine.

 

Experimentation of the curve, vertical and horizontal join and Y-shaped where two lines form a single line.

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Design of 5 different clothes where digital connections work, creating joins on shoulders, sides, neck and as a design element on garments.

Designing a lower clothe and 2 upper and 2 complements.

 

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Pattern of the differents clothes of the collection.

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prenda 4 (falda)

prenda 3 (blusa)-01

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Laser cut

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Seamless collection photo shoot

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Fridge Bag

 

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Fridge Bag is made out of fabric and silicone based on a 3d mold, which is fabricated in a milling machine. The concept of this project is to use LEDs, embedded in the fabric, that light up when somebody opens the bag to find their things. The circuit consists of, 30 LEDs(3mm), 8 resistors, a microcontroller(Attiny 85),a voltage regulator(LM 1117), a mosfet(Tip 102), two magnets and a battery(9V). The microcontroller(Attiny85) is programed by using  the Arduino Software in that way so if the magnets are apart (the circuit is open), the LEDs light up.

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The Circuit

 

 

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The LEDs Circuit

 

 

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Option1

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Option 2

white

 

 

 

 

 

 

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Lab Bag

Lab Bag 01

This project was conceived as a way to recycle previously used material into newly designed laptop bags. The material was provided from old canvas boards used for the My Very Own City (MVOC) exhibition that were designed and fabricated in the Fab Lab back in 2012.

Lab Bag 02

The concept of the design was driven by the idea of creating a bag without using conventional sewing methods and instead rely only on digitally fabricated methods.

Lab Bag 03

This collection is limited to 90 individual pieces that each have their own unique character and design and implement laser cutting as well as 3D printing techniques

Lab Bag 04

Each bag has the ability to be folded in either of two ways and an instruction kit was made in order to allow the user to fold and wear the bag as they please.

Option 01.

Lab Bag 05

Option 02.

Lab Bag 06

 

Download the open-source fabrication file here: LabBag

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Dressellate

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Dressellate explores folding techniques by transforming a 2D pattern and a piece of fabric, into a 3D volume. The prototype, made from thin plastic sheets is a study of the volumetry of the body. The final piece is a double sided organic fabric covered with a natural resin that provides rigidness.

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Concept: The digital pattern applied to the fabric attributes properties that are considered the basic tool of design. Different volumes of folding are shaped around the body.

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dressellate LASERFILE

Software: Rhinoceros

Fabrication method : Laser cutting

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Summer workshop with Fashion students of BAU, School of Design

During the summer workshops, fashion students of BAU, School of Design made a workshop of digital fabrication technologies applied in  fashion.Students were introduced to laser cutting patterns, laser cutting existing clothes, 3D printing and digital embroidery.Digital fabrication opens different possibilities in Fashion education,  production and consumption.

The students during the workshop were introduced to the maker culture and technologies available in the context of the Fab Lab Barcelona in order to understand the possibilities of digital creation and learning by doing methods in fashion.
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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.