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Editors:

Marcin Jakubowski

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Graphic Design:

Jean-Baptiste Vervaeck

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Version:

Date:

Electronics and Circuits

v19.05

First Edition

Open Source Ecology Design Guide Series

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Circuits and Electronics - Table of Contents 1

Summary – Electronics – How to work with electronics and how to make simple circuits from 3D printing, etching, milling, and soldering. Wiring. Control panels. 3D printed circuits. GFCIs. Milled and etched circuits. Doped circuits. What to do when features are too small to solder: sockets and flux. Sensors and data collection. Applications of a mini computer: Raspberry Pi. Internet of Things - devices accessible from you local network. Devices accessible from the web. Applications – We teach basics of how to treat electronic components as building blocks - to connect or solder a number of components together to make a working whole. Our goals include making controllers, sensors, and common power electronics devices such as power supplies, chargers, and speed controllers. We also want the student to be able to use a wide array of off-the-shelf electronic components and sensors and integrate them in their designs.

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  1. The big picture of circuits: what are they?
    1. Flow of electrons. Analogy to water and hydraulics. On and off + components
    2. Electronic components and black boxes from a modularity perspective
    3. Concept: the brain + functional or power stage
    4. Available sensors and transistors
    5. Electromagnetic phenomena: capacitance, inductance, resistance, radiation, light, chemical potential, thermoelectric effect, photovoltain effect
  2. Making your own circuits - problem statement at the macro and micro scale
    • Soldering 101
    • Air and deadbug soldering
    • 3D Printed Circuits: Boards and Panels
    • Etching with eco-friendly solution
    • Milling with the D3D CNC Circuit Mill
    • Surface mount, solder paste, reflow oven
    • Open source pick and place machines
    • 1, 2, and multilayer circuits
    • T and V by Wiring types, ampacity, connectors, and sockets
    • The GFCI as an ultimate safety device. Opensourcing it
    • Towards the open source semiconductor fab
      1. Starting with silicon
      2. Doping

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Circuits and Electronics - Table of Contents 2

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  • Applications
    • Controllers - robotic motion
    • Sensors
    • Data logging
    • Remote control
    • Power Electronics - Universal Power Supply
      • Chargers
      • Speed Controllers
      • DC current sources - charger, welder
      • Induction Furnace
      • High Frequency Power Sources - Plasma cutters, Telecommunications Spectrum
      • High Voltage - power over thin wires, laser cutters
    • Feedback
    • Internet of Things - local and internet
    • Computer Vision
  • Applications of small microcomputers: Raspberry Pi
    • The modular, 3D printed phone
    • The modular, 3D printed tablet
  • Designing Circuits
    • Defining requirements - key parameters to consider
    • Choosing components, wiring, connectors
      • Key component specifications for resistors, capacitors, inductors, and transistors.
    • Layout considerations
    • Drawing a circuit diagram
    • Circuit design in FreeCAD
      • FreeCAD part libraries
      • KiCAD libraries for FreeCAD
    • Considerations for integration with rest of electromechanical system
    • KiCAD 101. Made with KiCAD
    • Fritzing 101
    • Quite Universal Circuit Simulator - QUCS-KiCad-FreeCAD toolchain
    • Design Checklist

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Circuits and Electronics - Table of Contents 3

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  • Building Circuits
    • Deciding on the best implementation: off-the-shelf vs 3D printed vs DIY PCB vs integrated board vs outsourcing
    • Design for modularity and product ecology: admissible connectors
    • Microcontroller and microcomputer-based devices
    • Tools needed
    • Overall workflow
    • Circuit-building collaboration ecology for Extreme Manufacturing
    • Exporting toolpathis from KiCAD
    • Milling, etching
    • 3D and 4D printing
    • Post processing
    • Wiring and enclosures
    • Build checklist
    • Testing
    • Data collection: volt meter, oscilloscope

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Notes On Using this Guide

OSE work builds upon these great open source projects:

ABOUT: This is part of a design series on general machine design aimed at basic competency in the design of all 50 Global Village Construction Set machines.

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HOW TO USE: You can use a QR code reader to scan the bar codes to access content online.

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COLLABORATION: This is a collaborative effort. You are invited to help edit this guide. You can edit this document or make a copy, make your edits, and email us describing your proposed changes. To join our open source product development effort, join our Developer Team, or get hands-on experience in our Workshops. Email us at info@opensourceecology.org

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  1. Hello

Subtitle

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Time Estima

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Use magn

[6] Frame

[2] 14” Rod

[4] Magnets

[1] 16” Rod