Flipdots, flap, jumps, speakers, motor, fur…

FLIP-DOTS
Flip-Dot Swatch Example >> https://www.kobakant.at/DIY/?p=5915
Fabric Flipdot with H-Bridge >> Fabric Flipdot with H-Bridge
Flip-Dot Fabric (work in progress) >> https://www.kobakant.at/DIY/?p=5878

FLAPS
Flapping Wing Swatch Example >> https://www.kobakant.at/DIY/?p=5900
Flapping Wings >> http://www.kobakant.at/DIY/?p=8058

JUMPS
Jumping in a Ring >> http://www.kobakant.at/DIY/?p=8063

FABRIC SPEAKERS
Fabric Speakers >> https://www.kobakant.at/DIY/?p=2936
Fabric Speaker Swatch Example >> https://www.kobakant.at/DIY/?p=5935
Woven Speaker >> https://www.kobakant.at/DIY/?p=5509
Knit Speakers >> https://www.kobakant.at/DIY/?p=4465

TEXTILE MOTORS
Motor on a String >> https://www.kobakant.at/DIY/?p=5185

OTHER
Magnetic Fur >> https://www.kobakant.at/DIY/?p=4463

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INTRODUCTIONS to ELECTROMAGNETISM

ELECTROMAGNETISM (FULL SHOW)
>> https://www.youtube.com/watch?v=bht9AJ1eNYc

min 19:40: Left Hand Rule for Coils

Maxwell, The history of Electromagnetism – Documentary
>> https://www.youtube.com/watch?v=TfKBKb7Uc9s

Electromagnets

An electromagnet is simply a coil of wire. It is usually wound around an iron core. However, it could be wound around an air core, in which case it is called a solenoid. When connected to a DC voltage or current source, the electromagnet becomes energized, creating a magnetic field just like a permanent magnet. The magnetic flux density is proportional to the magnitude of the current flowing in the wire of the electromagnet. The polarity of the electromagnet is determined by the direction the current. The north pole of the electromagnet is determined by using your right hand. Wrap your fingers around the coil in the same direction as the current is flowing (conventional current flows from + to -). The direction your thumb is pointing is the direction of the magnetic field, so north would come out of the electromagnet in the direction of your thumb. DC electromagnets are principally used to pick up or hold objects.
(from http://www.coolmagnetman.com/magelect.htm)

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. The magnetic field disappears when the current is turned off. Electromagnets usually consist of a large number of closely spaced turns of wire that create the magnetic field. The wire turns are often wound around a magnetic core made from a ferromagnetic or ferrimagnetic material such as iron; the magnetic core concentrates the magnetic flux and makes a more powerful magnet.
(from https://en.wikipedia.org/wiki/Electromagnet)

Magnetic field produced by a solenoid (coil of wire). This drawing shows a cross section through the center of the coil. The crosses are wires in which current is moving into the page; the dots are wires in which current is moving up out of the page.

The magnetic field lines of a current-carrying loop of wire pass through the center of the loop, concentrating the field there

Simple coil experiment

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Materials we often use in making electromagnetic actuators

highly conductive:
Karl-Grimm copper and silver conductive threads >> karl-grimm.de/
Copper plated ripstop conductive fabric >> statex.de/

Enameled wire, magnet wire:
>> https://www.conrad.at/de/p/block-kupferlackdraht-aussen-durchmesser-inkl-isolierlack-0-10-mm-1-pckg-0-10-kg-605034.html
>> https://www.conrad.at/de/p/block-kupferlackdraht-aussen-durchmesser-inkl-isolierlack-0-15-mm-1-pckg-0-10-kg-605053.html

Neodymium magnets
>> https://enesmagnets.pl/shop/en/permanent-magnets/neodymium-sintered/ring-magnets/

Magnetic beads
>> https://www.crystal-creative.com/de/perlen/magnetperlen/

Steel conductive thread >> bekaert.com/

Fusible interfacing (iron-on heat glue) >> https://www.amazon.de/dp/B000Y0083K/ref=sr_1_8?keywords=heat+n+bond&qid=1578903614&sr=8-8

1W resistors
datasheet >> https://cdn-reichelt.de/documents/datenblatt/X400/DS_PO_SERIES_VIT.pdf
datasheet >> https://cdn-reichelt.de/documents/datenblatt/B300/RSF-RSMF_ENG_TDS.pdf

Transistors
NPN: 2N2222 datasheet >> https://www.onsemi.com/pub/Collateral/P2N2222A-D.PDF
PNP: 2N3906 datasheet >> https://www.onsemi.com/pub/Collateral/2N3906-D.PDF
MOSFET: IRLU8743 datasheet >> https://www.infineon.com/dgdl/irlr8743pbf.pdf?fileId=5546d462533600a4015356719c7e26ff

ICs
L293D/NE (H-Bridge) datasheet >> https://cdn-reichelt.de/documents/datenblatt/A200/L293NE-TI.pdf

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Other’s electromagnetic works:

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CHIJIKINKUTSU
Nelo Akamatsu
>> http://www.neloakamatsu.jp/chijikinkutsu-eng.html

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Chowndolo
Giacomo Lepri
>> http://www.giacomolepri.com/

Chowndolo from Giacomo Lepri on Vimeo.

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Not North
Irene Posch, Talia Mukmel
>> http://www.ireneposch.net/not-north/

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The Embroidered Computer
Irene Posch, Ebru Kurbak
>> http://www.ireneposch.net/the-embroidered-computer/

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Flip Dot
Pauline van Dongen
>> https://vimeo.com/75606054

Flip Dot from Pauline van Dongen on Vimeo.

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Draping Sound
EJTech
>> http://ejtech.cc/?page_id=1379

Draping Sound from ejtech on Vimeo.

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Phase In, Phase Out
EJTech
>> http://ejtech.cc/?page_id=814

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Chants Magnétiques
Claire Williams
>> http://www.xxx-clairewilliams-xxx.com/projets/chants-magnetiques/

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Sound Embroidery
Claire Williams
>> http://www.xxx-clairewilliams-xxx.com/projets/sound-embroidery/

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DER THEATERAUTOMAT
PRAGMATA (Angelina Kartsaki & Sebastian Schlemminger)
>> http://www.sebastianschlemminger.de/der-theaterautomat.html

Theaterautomat Trailer from PRAGMATA on Vimeo.