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 #Summary 
 - [Summary](#section-id-1)
 - [PCBA](#section-id-51)
 - [Prototype PCBA Manufacturing](#section-id-57)
 - [Software](#section-id-66)
  - [Debian](#section-id-72)
  - [Other Software](#section-id-108)
  - [Electronic Design Automation (EDA)](#section-id-129)
 - [PCB Manufacturing](#section-id-135)
  - [Board Types and Features](#section-id-149)
  - [Copper Layer](#section-id-154)
  - [Soldermask](#section-id-159)
  - [Silkscreen](#section-id-164)
  - [Standards & QC](#section-id-169)
 - [PCB Assembly](#section-id-178)
  - [Placement](#section-id-191)
  - [Solder Paste](#section-id-208)
  - [Solder Wire](#section-id-219)
  - [Flux](#section-id-228)
  - [Flux Remover](#section-id-235)
  - [Low Melt Alloy](#section-id-244)
  - [Solder Wick](#section-id-251)
  - [Heat](#section-id-258)
 - [PCBA Processes](#section-id-273)
  - [Solder through hole components with soldering iron](#section-id-278)
  - [Solder SMT components with soldering iron](#section-id-283)
  - [Solder SMT components with hot air](#section-id-288)
  - [Solder SMT components with oven](#section-id-293)
  - [Solder SMT components with skillet](#section-id-298)
  - [Solder BGA components](#section-id-303)
  - [Rework through hole components](#section-id-308)
  - [Rework SMT components](#section-id-318)
  - [Rework BGA components](#section-id-328)
  - [Create solder paste stencil](#section-id-333)
  - [Apply solder paste with solder paste mask](#section-id-343)
  - [Apply solder paste with syringe](#section-id-348)
  - [Apply solder paste with electronic syringe](#section-id-353)
  - [Solder Pot](#section-id-358)
 - [PCBA Testing](#section-id-366)
 - [Equipment](#section-id-371)
  - [LASER](#section-id-378)
  - [CNC](#section-id-391)
  - [3D Printer](#section-id-404)
  - [Solder Station](#section-id-416)
  - [Pick and Place](#section-id-445)
 - [Production Boards](#section-id-457)
 - [Copying / License](#section-id-466)
 <div id='section-id-1'/>
 #Summary 
 - [PCBA](#section-id-1)
 - [Prototype PCBA Manufacturing](#section-id-12)
 - [Software](#section-id-19)
  - [Debian](#section-id-23)
  - [Other Software](#section-id-57)
  - [Electronic Design Automation (EDA)](#section-id-76)
 - [PCB Manufacturing](#section-id-80)
  - [Board Types and Features](#section-id-92)
  - [Copper Layer](#section-id-95)
  - [Soldermask](#section-id-98)
  - [Silkscreen](#section-id-101)
  - [Standards & QC](#section-id-104)
 - [PCB Assembly](#section-id-111)
  - [Placement](#section-id-122)
  - [Solder Paste](#section-id-137)
  - [Solder Wire](#section-id-146)
  - [Flux](#section-id-153)
  - [Flux Remover](#section-id-158)
  - [Low Melt Alloy](#section-id-165)
  - [Solder Wick](#section-id-170)
  - [Heat](#section-id-175)
 - [PCBA Processes](#section-id-188)
  - [Solder through hole components with soldering iron](#section-id-191)
  - [Solder SMT components with soldering iron](#section-id-194)
  - [Solder SMT components with hot air](#section-id-197)
  - [Solder SMT components with oven](#section-id-200)
  - [Solder SMT components with skillet](#section-id-203)
  - [Solder BGA components](#section-id-206)
  - [Rework through hole components](#section-id-209)
  - [Rework SMT components](#section-id-217)
  - [Rework BGA components](#section-id-225)
  - [Create solder paste stencil](#section-id-228)
  - [Apply solder paste with solder paste mask](#section-id-236)
  - [Apply solder paste with syringe](#section-id-239)
  - [Apply solder paste with electronic syringe](#section-id-242)
  - [Solder Pot](#section-id-245)
 - [PCBA Testing](#section-id-251)
 - [Equipment](#section-id-254)
  - [LASER](#section-id-259)
  - [CNC](#section-id-270)
  - [3D Printer](#section-id-281)
  - [Solder Station](#section-id-291)
  - [Pick and Place](#section-id-318)
 - [Production Boards](#section-id-328)
 <div id='section-id-1'/>
 <div id='section-id-51'/>
 # PCBA
 PCB Assembly. Soldering. SMT. Thru hole. Stencils. Paste. Equipment. Tools. HOWTOs.
 <div id='section-id-12'/>
 <div id='section-id-57'/>
 # Prototype PCBA Manufacturing
 This documents free software and open source hardware manufacturing
 of PCBAs (Printed Circuit Board Assemblies).
@ -118,18 +9,10 @@ of PCBAs (Printed Circuit Board Assemblies).
 Focus is particularly on tools that can be used with hackerspace-
 level technology.
 <div id='section-id-19'/>
 <div id='section-id-66'/>
 # Software
 Various Free Software (as defined by FSF) applications available
 for the creation of PCBAs.
 <div id='section-id-23'/>
 <div id='section-id-72'/>
 ## Debian
 The below packages are in Debian Buster. Note, even though it is in
 Debian, you may want to build some of these packages from scratch
@ -164,10 +47,6 @@ The following Debian packages are NOT in use:
 * `visolate` - tool for engraving PCBs using CNCs.
 <div id='section-id-57'/>
 <div id='section-id-108'/>
 ## Other Software
 Other PCBA software available under Free Software licenses.
@ -187,18 +66,10 @@ https://github.com/openscopeproject/InteractiveHtmlBom
 * [`flatcam`](http://flatcam.org/) --- Free and Open-source PCB CAM.
 FlatCAM lets you take your designs to a CNC router. You can open Gerber, Excellon or G-code, edit it or create from scatch, and output G-Code. Isolation routing is one of many tasks that FlatCAM is perfect for.
 <div id='section-id-76'/>
 <div id='section-id-129'/>
 ## Electronic Design Automation (EDA)
 To design PCBs, KiCAD is used.
 Export Gerber files for manufacturing.
 <div id='section-id-80'/>
 <div id='section-id-135'/>
 # PCB Manufacturing
 You can make your own PCB or have them made by numerous suppliers.
 Recommended suppliers (amongst many):
@ -211,38 +82,18 @@ Recommended suppliers (amongst many):
 * Many others that also support KiCAD!
 <div id='section-id-92'/>
 <div id='section-id-149'/>
 ## Board Types and Features
 FR1, FR4, etc.
 <div id='section-id-95'/>
 <div id='section-id-154'/>
 ## Copper Layer
 Cu later.
 <div id='section-id-98'/>
 <div id='section-id-159'/>
 ## Soldermask
 Green...
 <div id='section-id-101'/>
 <div id='section-id-164'/>
 ## Silkscreen
 White...
 <div id='section-id-104'/>
 <div id='section-id-169'/>
 ## Standards & QC
 Standards:
@ -250,10 +101,6 @@ Standards:
 * cf. NASA Standards.
 <div id='section-id-111'/>
 <div id='section-id-178'/>
 # PCB Assembly
 You can have a board assembled by a house such as ProtoExpress,
 or you can assemble it yourself. There is an endless variety of
@ -265,10 +112,6 @@ DIY approaches to this. This you have the PCB finished. You need to:
 * Solder Components.
 <div id='section-id-122'/>
 <div id='section-id-191'/>
 ## Placement
 The many ways to place a part...
@ -284,10 +127,6 @@ What method is used depends on the type and size of the part
 and what equipment is available. We'll be working with SMT,
 BGA, and through hole parts.
 <div id='section-id-137'/>
 <div id='section-id-208'/>
 ## Solder Paste
 To solder SMT parts to PCB.
@ -297,10 +136,6 @@ In use:
 * Zeph ZeroLead, 96.5Sn / 3Ag /.5Cu, 10cc syringe.
 <div id='section-id-146'/>
 <div id='section-id-219'/>
 ## Solder Wire
 In use:
@ -308,19 +143,11 @@ In use:
 * Kester Sn96.5Ag3.0Cu0.5, no clean, no lead, 0.8mm.
 <div id='section-id-153'/>
 <div id='section-id-228'/>
 ## Flux
 In use:
 * Zephlux No Clean Flux, 14 gr. jar.
 <div id='section-id-158'/>
 <div id='section-id-235'/>
 ## Flux Remover
 But you just put flux on...
@ -328,28 +155,16 @@ In use:
 * Zeph Flux Remover.
 <div id='section-id-165'/>
 <div id='section-id-244'/>
 ## Low Melt Alloy
 To desolder, perchance.
 * Zeph ZERO No Lead Low Melt.
 <div id='section-id-170'/>
 <div id='section-id-251'/>
 ## Solder Wick
 Solder wick, aka desoldering wire.
 In use: variety sizes.
 <div id='section-id-175'/>
 <div id='section-id-258'/>
 ## Heat
 You need to melt that solder...
@ -363,59 +178,27 @@ You need to melt that solder...
 * Hot air bath.
 <div id='section-id-188'/>
 <div id='section-id-273'/>
 # PCBA Processes
 Working with PCBs and components:
 <div id='section-id-191'/>
 <div id='section-id-278'/>
 ## Solder through hole components with soldering iron
 HOWTO solder through hole components to a PCB with soldering.
 <div id='section-id-194'/>
 <div id='section-id-283'/>
 ## Solder SMT components with soldering iron
 HOWTO Solder SMT components with soldering iron.
 <div id='section-id-197'/>
 <div id='section-id-288'/>
 ## Solder SMT components with hot air
 HOWTO Solder SMT components with hot air.
 <div id='section-id-200'/>
 <div id='section-id-293'/>
 ## Solder SMT components with oven
 HOWTO Solder SMT components with oven.
 <div id='section-id-203'/>
 <div id='section-id-298'/>
 ## Solder SMT components with skillet
 HOWTO Solder SMT components with skillet.
 <div id='section-id-206'/>
 <div id='section-id-303'/>
 ## Solder BGA components
 HOWTO Solder BGA components.
 <div id='section-id-209'/>
 <div id='section-id-308'/>
 ## Rework through hole components
 HOWTO Rework through hole components.
@ -424,10 +207,6 @@ Current Practice:
 * [Through Hole Component Removal HOWTO]
 (HOWTO/through-hole-component-removal-HOWTO.md)
 <div id='section-id-217'/>
 <div id='section-id-318'/>
 ## Rework SMT components
 HOWTO Rework SMT components.
@ -436,17 +215,9 @@ Current Practice:
 * [SMT Component Removal HOWTO]
 (HOWTO/smt-component-removal-HOWTO.md)
 <div id='section-id-225'/>
 <div id='section-id-328'/>
 ## Rework BGA components
 HOWTO Rework BGA components.
 <div id='section-id-228'/>
 <div id='section-id-333'/>
 ## Create solder paste stencil
 HOWTO Create solder paste stencil.
@ -455,57 +226,29 @@ Current Practice:
 * [HOWTO create a solder paste stencil with Inkscape]
 (HOWTO/laser-solder-paste-stencil-inkscape.md)
 <div id='section-id-236'/>
 <div id='section-id-343'/>
 ## Apply solder paste with solder paste mask
 HOWTO Apply solder paste with solder paste mask.
 <div id='section-id-239'/>
 <div id='section-id-348'/>
 ## Apply solder paste with syringe
 HOWTO Apply solder paste with syringe.
 <div id='section-id-242'/>
 <div id='section-id-353'/>
 ## Apply solder paste with electronic syringe
 HOWTO Apply solder paste with electronic syringe.
 <div id='section-id-245'/>
 <div id='section-id-358'/>
 ## Solder Pot
 HOWTO Use a solder pot.
 * [Solder Pot HOWTO]
 (HOWTO/solder-pot-HOWTO.md) 
 <div id='section-id-251'/>
 <div id='section-id-366'/>
 # PCBA Testing
 Pins.
 <div id='section-id-254'/>
 <div id='section-id-371'/>
 # Equipment
 The equipment considered is what is generally available to
 hackerspaces. This leaves out industrial gear like large
 wave solder machines.
 <div id='section-id-259'/>
 <div id='section-id-378'/>
 ## LASER
 LASERS can serve a few purposes in manufacturing PCBAs.
 Inexpensive LASER cutters are available at many hackerspaces.
@ -517,10 +260,6 @@ Inexpensive LASERs can be retrofit to RepRap 3D printers.
 * Board marking, such as serialization.
 <div id='section-id-270'/>
 <div id='section-id-391'/>
 ## CNC
 Large CNCs are overkill for PCBA assembly.
 Very small CNCs can be used.
@ -531,11 +270,6 @@ CNCs can be used to:
 * Drill PCB holes.
 <div id='section-id-281'/>
 <div id='section-id-404'/>
 ## 3D Printer
 RepRap 3D printers are available at many hackerspaces.
 3D printers can be used to:
@ -546,10 +280,6 @@ RepRap 3D printers are available at many hackerspaces.
 * Make other tools, etc.
 <div id='section-id-291'/>
 <div id='section-id-416'/>
 ## Solder Station
 Solder station tools:
@ -577,10 +307,6 @@ Solder station tools:
 * Solder pot.
 <div id='section-id-318'/>
 <div id='section-id-445'/>
 ## Pick and Place
 A variety of free software compatible and open source hardware
 pick and place machines are available.
@ -591,10 +317,6 @@ pick and place machines are available.
 non-commercial design licensed hardware. Manufacturer supplies
 proprietary application.
 <div id='section-id-328'/>
 <div id='section-id-457'/>
 # Production Boards
 Boards manufactured or slated to be manufactured.
@ -604,8 +326,6 @@ https://code.forksand.com/forksand/fs-TrellisBoard
 * ULX3X --- ECP5 board.
 https://code.forksand.com/forksand/fs-ulx3s
 <div id='section-id-466'/>
 # Copying / License
 This document is available here:
 https://code.forksand.com/forksand/pcba/src/branch/master/README.md