Interactive Loomed Fabric Workshop Slides

INTERACTIVE LOOMED FABRIC

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Workshop Overview Loom Machines and Techniques Soft Conductive Materials Punk Console Electronic Circuit Looming Interactive Fabric

ONE

WORKSHOP OVERVIEW

Inspirations

Mino Soft Synth by Lara Grant (HERE) Stitch Synth by Jessica Stanley (HERE)

Open your Tool Kit! 1.

2.

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Loom Frame Paper Paper Grid Cards Felt Grid Cards Felt Stips Yarns Paper Ribbon Conductive Tape Conductive Thread Resistive Material (Velostat) Alligator Clips Battery Electronic Components Breadboard Jumper Wires

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4 6

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7 2

10 8

15

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11

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14 13

1

TWO

LOOM MACHINES & TECHNIQUES

History of Weaving/ Looming Machines

18th Century

20th Century

Weaving/ Looming Main Concept

Warp

Fill/ Weft

Paper Looming

Paper Looming Cont.

Looming from Fiber to Fabric

Click HERE

Looming from Fiber to Fabric Cont.

Inspirations for Loom Tools

THREE

SOFT CONDUCTIVE MATERIALS

Materials Fabrics Conductive E-Textiles

Semi-Conductive E-Textiles

Conductive Thread

Conductive Tape

Fabric Potentiometer

Click HERE

Click HERE

Fabric Potentiometer Cont.

2 1

Fabric Potentiometer Cont.

Pressure Sensor 3

Press VCC

Input

Textile Potentiometer Design

Resistance Changing

Distance

Contact/ Pressure

Surface Area

Increasing distance will

Some materials are pressure

Increasing the surface area

increase resistance.

sensitive, resistance is

will decrease resistance.

reduced when more pressure is applied.

Textile Potentiometer Design Cont.

Textile Potentiometer Design Cont.

Resistive Material (Velostat)

Resistive Material (Velostat)

Conductive Fabric Conductive Tape

FOUR

PUNK CONSOLE CIRCUIT

Logic Noise: Oscillator Sound Physical System

Sound is a form of energy transmitted as waves.

Sound is mainly generated by vibrations or oscillations.

Electronics/ Logic System Electronic Synthesizer/ Organ

Waves are transformed into pulses/ square signal of variable widths.

Sound pitch and loudness is controlled by keyboard & tuners.

Atari-Punk Organ HERE

Circuit Modules

Oscillator

Variable Resistors RC

The main part of the synthesizer that turns DC electricity into an oscillating signal.

Analog synthesizer mainly use CMOS ICs for the oscillator stage.

Output Module -

Fixed Capacitors

Sound Device (Speaker) - Volume Control - Amplifier Stage

Control the pitch of the sound.

Refer to the Book “Handmade Electronic Music” HERE

Simulation

Real Demo

Oscillator 555 Timer IC

Click HERE

Schematic Diagram

Circuit Model

2

1

2x100 KOhm Potentiometer 2x1 KOhm

The potentiometers control the pitches of the output audio.

1. 10nF 2. 100nF

Circuit Schematics HERE Buzzer

470 Ohm

Punk Console Circuit

Tinker This

Simulation

Click HERE

Punk Console Circuit Cont.

Make the Soft Version!

Oscillator

Soft Force Sensitive Resistor

Touching the Resistor â—?

The oscillator is controlled by a force sensing resistor.

The resistor is made from Velostat and Conductive Tape/ Fabric.

đ&#x;˜

â—?

With conductive tip, material will result in pitchy tones due to the decrease in the resistance.

With ďŹ nger tips, will result in low tones due to the high resistance of the body.

Summary â—? â—? â—?

The resistance DeďŹ nes the pitch of the tone.

Pitches are controlled by the speed of the oscillation.

For punk console circuit, the second potentiometer is replaced with soft components to control the output sound.

This is due to the fact that, each oscillator output is feeding into the other’s trigger pin, so you can control the sound by touch the other.

Punk Console Circuit Cont.

Low Resistance

High Resistance

Punk Console Circuit Cont.

Stitched Circuit Board

Punk Console Circuit Cont.

Wire Color Index Connect to resistive track Connect to the conductive track

Textile Potentiometer Designs

QUESTIONS...

FIVE

LOOMING INTERACTIVE FABRIC

Soft Modules

Module 1 Top View Resistive Material (Velostat)

Conductive Tape

Bottom View

Module 2 Conductive Thread

Top View

Bottom View

Conductive Tape

Conductive Fabric (Eeontex)

Resistive Material (Velostat)

Punk Console Circuit Cont.

Wire Color Index Connect to resistive track Connect to the conductive track

SIX

WHAT ELSE TO MAKE?

More Interactive Synth Projects

Mino Soft Synth by Lara Grant (HERE) Stitch Synth by Jessica Stanley (HERE)

More Applications for Interactive Fabric

Learning Resources Learn by Doing!

The Wonderful World of eCraft + eTextile Connectors ChickTech Soft Circuits Wearable Electronics Class Make Wearables How to Work With Conductive Fabric

CONTACTS