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Van Zero to Hero in PCB design

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Deze Les

  • Geschiedenis
  • Terminologie
  • Van protype tot eindproduct
  • PCB productie methoden
  • PCB design

Geschiedenis

In the beginning

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[Full size](http://media.oregonlive.com/silicon-forest/photo/tek-innards-randyjpg-30653e8021787d4a.jpg =x500)
note:
Foto van een oude oscilloscoop, zonder printplaten

Breadboard

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note: een schema gemaakt op een broodplankje

Wire wrap

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Note: Gaatjes print met wire wrap

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Gaatjes print

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Handgetekende printplaat

Teken software

Multilayer printplaten

Through hole vs SMD

Aanvullende terminologie

Baantje / Trace / Track

Via

Copper fill / plane


note: no fill, nadeel je verspilt veel tijd en chemicalien met etsen

Van protype tot eindproduct

Idee:

Specificaties

Berekeningen

Schema

Prototypen

Verifiëren

Je design vereeuwigen

Gaatjes print

Corosie bestendig maken

Klaar

Zijn er nog vragen?

PCB Productie methoden

Frezen

Nadelen

Kan maar zo naukeurig als het kleinste freesje

Veel stof

Frezen verslijten snel door het print materiaal

Traag

Voordelen

Automatisch boren

Board shape

Etsen

Wat is etsen

Je design aanbrengen

Stift

Press and peel / toner transfer

Lichtgevoelige print

Masker: Kalkpapier

Masker: Transparanten

Belichten
DIY

Professioneel

Redneck

Redneck

Ontwikkelen

Ontwikkelen: Pro tip

note:
Ga met je vinger over de ontwikkelde printplaat terwijl deze is ondergedompeld in water. Dit zal glibberig aanvoelen. Wrijf met je vinger deze glibberige subtie af de printplaat dit zal de etstijd verkorten en zorgen voor een strakker ontwerp.

Water

Etsen
IJzer(III)chloride

Nadelen:

  • Traag
  • Vuil
Waterstofperoxide en zoutzuur

Note:
Meer info: http://users.telenet.be/nielsl/hoe_printplaten_esten.htm

Etsen met azijn

note: https://hackaday.com/2012/02/15/etching-pcbs-with-vinegar/

Tips


https://www.instructables.com/id/Sponge-Ferric-Chloride-Method-Etch-Circuit-Bo/

Water

Gaatjes boren

Optioneel

Solder mask

Vertinnen

Silkscreen

Bestellen

https://pcbshopper.com/

Hacks

DLP printer - https://hackaday.com/2018/11/24/put-that-dlp-printer-to-use-making-pcbs/

https://hackaday.com/2019/07/07/a-complete-desktop-pcb-etching-station/

Extra: E textile

Borduurmachine

Zeefdrukken OLED

Luidspreker

http://www.kobakant.at/DIY/?p=5935

Getting started with KiCad

Downloading KiCad

https://kicad-pcb.org/download/

Installing KICAD

Your first project

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New Project

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note: Maak een nieuw project aan. Een project bestaat uit:

  • een schema dit is de voorstelling van de verbindingen die gemaakt moeten worden tussen de componenten.
  • een PCB layout dit zijn alle footprints van de componenten op de juiste manier met elkaar verbonden aan de hand van koperbaantjes.

Creating a schematic

Componenten toevoegen aan het schema

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Creating a new library + Drawing a new symbol

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Componenten verbinden

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Component waarden toekennen:

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Annotating

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Electrical rule check

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PCB Footprints toekennen aan schema symbolen

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Eigen footprint ontwerpen

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Netlist genereren

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Creating a PCB

PCB openen en Netlist inladen

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Componenten plaatsen op de PCB

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Routen van traces

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Kopervlakken maken

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Bord outline tekenen

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Design Rule Check

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Exporting your files

Exporteren om zelf te etsen

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Exporteren naar gerber voor een fabrikant

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Adressen

Gotron Gent

Bronnen

https://en.wikipedia.org/wiki/Wire_wrap
Collin's Lab: The REAL Breadboard
https://sites.google.com/site/electricalhustlerss/representing-information

Last changed by 
 
Bruce Helsen
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