Electronic CAD Tool Options for Schematic and PCB work
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Transcript of Electronic CAD Tool Options for Schematic and PCB work
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1 - 03/09/2015
Austin IoT Hardware Sub-Group
September 2015
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About The Austin IoT Sub-GroupThe IoT Hardware Sub-Group offers a more hands-on approach than its broader based parent, the Austin IoT group.
Meetups will feature show-and-tell demonstrations, collaborative discussion, and educational presentations.
The focus is on learning how to create IoT devices, for fun or profit. Most of all, we will have fun! with IoT.
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About Tech Shop
A Maker’s Dream!Support for EntrepreneursMembershipToursMeetings
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Tonight’s Agenda● Introduction
○ Announcements○ Call for jobs○ Call for demos - project discussions
● CAD Tools for Electronics
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Announcements
● Got a Job to announce?● Looking for a Job?● Other announcements?
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Demo and Project Discussion
● Show and Tell time!○ Have something to show?○ Working on a project?○ How about for next month?
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Electronics CAD ToolsKiCAD Osmand PCBgEDA DesignSpark Fritzing PCWeb BSch3V CometCAD TinyCAD ZentiPCB Sunstone's PCB123 ExpressPCB Altum CircuitMaker Eagle MultiSim Blue
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Schematic Capture
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PCB Layout
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Real PCB
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My Opinion!● Many options and opinions, tools are all pretty much the
same. All work, are painful to learn, and could be better.● Most important features (in existing options)
○ Cost vrs Limitations○ Library Management (parts)
■ Symbol for SCH■ Model for PCB
● Not most important○ Existing Part Library
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My Personal Favorite
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Open Source, Cross Platform, Electronics CAD Suite
● Schematic Capture - PCB Layout - PCB Autorouting - 3D Modeling
● Free - No limits on schematic or board size or number of layers
● Easy (enough) to learn and use○ Lots of online tutorials
● CERN Support○ The hardware fraternity at CERN believes that KiCad can do to PCB design what the
GCC compiler did to software.○ Collaborating with KiCad team to bring advanced features.
■ http://www.eetimes.com/author.asp?section_id=36&doc_id=1320005
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Eagle - Highly Popular
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Eagle - $ Limits● Schematic Capture - PCB Layout - PCB Autorouting● Windows, Linux and Mac.● Free Version
○ PCB+SCH+Autorouter○ Non-Profit or Evaluation only○ One schematic sheet○ 2 board Layers○ Max board size is 100 x 80mm (4 x 3.2 inches)
● Eagle Business Light $69 ○ Same limits as free, above, except for profit work.
● Eagle Make Personal $135 ○ PCB+SCH+Autorouter○ Non-commercial○ 99 schematic sheets○ 6 board Layers○ Max board size is 160 x 100mm (6.4 x 4 inches)
● Eagle Make Pro $135/year○ Same limits as Make Personal, above, except for profit work.
Unlimited versions $820 - $1640
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Verses
FreeUnlimitedOpen SourceGood CommunityEasy Enough
$69 for small$135/year $K unlimitedHuge CommunityLarge Parts LibraryMany OS projectsEasy Enough
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● Online, Web Application● $99/Month● $499/Month● $999/Month
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Other Tools● Circuit Maker
○ Altium - the big dog.○ Free Schematic, and PCB layout.○ Online only - only two private projects.
● DesignSpark○ Free Schematic and PCB Layout○ RS Electronics
● MultiSim Blue■ Schematic, Simulation, PCB Layout, and BOM■ Free and unlimited■ National Instruments and Mouser Electronics
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Ordering PCBs - Gerbers● Gerber Files
○ One per layer○ Copper ○ Silkscreen○ Solder Mask○ Board Layer
● Drill Files○ Every hole in board○ text format
● Description and Package
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Ordering PCBs - Suppliers○ OSH Park
■ 2 layer, $5/inch, 2 boards, 2 weeks■ Great online tool for ordering
○ Dirty PCB ■ 5x5cm, 10 boards, $14, 2 weeks■ 10x10cm, 10 boards, $25, 2 weeks
○ Express PCB ■ $51, 3 PCBs, next day, 3.8x2.5”, no solder mask■ Free CAD tools
○ Gold Phoenix (China, 100 inches $100, weeks)○ MyRow (China, Eagle support, weeks)
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Advice - Schematic● ERC!!!!● Inputs on left, outputs on right (usually)● + is up, - and gnd are down.● Group functionality● Custom Library file● Good symbols, don’t default to a box● Connector pins and descriptions● Schematics are important documentation● Use multiple sheets as function blocks
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Advice - PCB● DRC!!!● Group functionality● Custom Library file● Print and verify placements (Calibrate printer)● Have your real parts● Fit check your board● Layer directions● Auto router concerns● Pad and Drill - Sizes and Shapes● Silk screen and part info● Thermal Relief● Ground Plane
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Questions?