Broder avec du fil conducteur
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Introduction
Cet article est une ébauche à compléter. Une ébauche est une entrée ayant un contenu (très) maigre et qui a donc besoin d'un auteur.
Points de broderie et résistance
La resistance est fonction de la densité de fil et de la distance.
- Plus il y en a, moins il y a des la resistance, par exemple par example 3 lignes adjacents de triples points ou encore un point droit couvert par un satin devrait offrir moins de resistance qu'un point droit simple
- Ensuite la resistance augmente avec la distance.
Caractéristiques de fils conducteurs et réglages
On fera nos premiers essais avec du fil de Madeira
Madeira HC 12
Caractéristiques selon le constructeur: Heavy fully silver-plated dtex 235x2 embroidery thread with resistance < 100 Ohm/m. Suitable for robust circuitry and all applications where a very low resistance is required. Available on 1000 m cones for 100/16 needles. (High conductive embroidery threads) (consulté 1/2023).
Madeira HC40
Caractéristiques selon le constructeur: The all-rounder among conductive threads. Easy to use dtex 117x2 embroidery thread for standard 75/11 or 80/12 needles. The resistance of <300 Ohm/m can be varied by using conductive bobbin thread or varying the stitches. Available on 2500-metre cones. (High conductive embroidery threads) (consulté 1/2023).
Développement avec le Circuit Playground Express
Le Circuit Playground Express (CPX) permet d'implémenter divers types de dispositifs. On peut le programme en MakeCode, Arduino ou Circuit Python
Astuces
- Pour créer un "bouton", il suffit de broder un point triple.
- Il faut vérifier la broderie, notamment couper les fils de saut (regarder des deux côtés)
- Après avoir connecté une nouvelle entrée ou sortie, il faut redémarrer le CPX, c-a-d cliquer sur le petit bouton reset au centre.
Liens
Exemples
- Exploring e-textiles by Lara Tomholt. Décrit un projet avec broderies décoratives et un fil qui au toucher allume diverses LED, selon la position du doigt.
- Conductive thread embroidery by Jacky Puzey, 2018. Montre un exemple fait avec le fil Madeira HC 40. Pas d'explications.
- Making E-Textile Interfaces with Trill Craft by Becky Stewart (2020), Bela. Project with hand sewn conductive thread and conductive fabric (que l'on pourrait remplacer avec un tatami brodé). Il y a d'autres projets intéressant sur ce site.
Introductions
- Tomas Blecha, Radek Soukup, Jan Reboun & Miroslav Tichy (2020). Conductive Hybrid Threads and Their Applications (overview of some serious applications)
- Conductive Thread - 10 Tips, Adafruit Industries (sewing)
- Tufting With Conductive Thread, E-Textile Sensor Experiments: combining traditional textile techniques with computer interaction, by Yuchen Zhang, dec 2018. (for hand embroidery)
- LilyPad Basics: E-Sewing, by Gella, (not dated, sewing tips, in particular for Lilypad users)
- Embroidering Conductive Thread with a Janome MC 200E embroidery machine (short technical embroidery discussion related Embird, not very useful for other purposes).
- Insulation Techniques for e-Textiles, by Gella, (five different methods for insulating conductive thread traces in an e-textile project)
- Machine Embroidery Covering Conductive Thread, by Lynne Bruning (show how to cover conductive thread with non-conductive satin stitches)
- Touch Me! Open Universal Input Sleeve {OUIS} , by CMoz, (shows how to use conductive sheets, embroidery is just for decoration)
- Speaking T-shirt ,by Techlab St Joost (shows how to use conductive paint)
- Printed electronic embroidery using conductive thread, by Natalie Fifeld, YouTube Video 2019.
- E-textiles par Trinidad G. Machuca . Un project fabracademy.
- Embroidering electrical interconnects with conductive yarn for the integration of flexible electronic modules into fabric, IEEE Explore, 2005.
Material
- High conductive embroidery threads. Website from Madeira that includes links to their two variants of conductive threads for machine embroidery, plus some extra information.
- Conductive Thread, by Becky Stern, Adafruit. It presents the 3ply thread for sewing, sold by this company. Also included a tutorial on how to sew it and use it with a CPX. On peut acheter ce fil soit chez Adafruit, soit chez un distributeur d’électronique, soit sur Amazon. Pareil pour le fil de Sparkfun (LilyPad)
Links
- Conductive Embroidery, PinInterest links by MarianaTamashiro
Articles divers
- Hamdan, N. A. H., Voelker, S., & Borchers, J. (2018). Sketch&Stitch: Interactive embroidery for E-Textiles. In Conference on Human Factors in Computing Systems - Proceedings (Vol. 2018-April, pp. 1–13). New York, New York, USA: Association for Computing Machinery. https://doi.org/10.1145/3173574.3173656
- Mattila, H.R. Intelligent Textiles and Clothing. North America: Woodhead Publishing Limited, 2006. E-Textiles For Wearability: Review Of Integration Technologies. Textile World [online]. [cit. 2017-01-13]. Available from: http://www.textileworld.com/textile-world/features/2010/04/e-textiles-for-wearability-review-of-integration-technologies/ SOFT SENSING STRUCTURES. Smart Textiles Design Lab Blog [online]. The Swedish School of Textiles, 2016 [cit. 2017-06-07]. Available from: http://stdl.se/?p=3864 R. Polanský, et al., A novel large-area embroidered temperature sensor based on an innovative hybrid resistive thread, In Sensors and Actuators A: Physical, Volume 265, 2017, Pages 111-119, ISSN 0924-4247
- Stavrakis, A.K.; Simi ́c, M.; Stojanovi ́c, G.M. A Study of the Performance Degradation of Conductive Threads Based on the Effects of Tensile Forces and Repeated Washing. Polymers 2022, 14, 4581. https://doi.org/10.3390/polym14214581
- Wright, R., & Keith, L. (2014). Wearable Technology: If the Tech Fits, Wear It. Journal of Electronic Resources in Medical Libraries, 11(4), 204–216. https://doi.org/10.1080/15424065.2014.969051