Shenzhen Ready

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Overview ucok-shenzhen.jpg

Classics

Online Showcases of PCBs

Cardboardelectrnics Collection of PCB projects curated by D. Kera and her "academic" article.

Other sources and methods

http://41j.com/blog/2016/09/weird-pcb-layouts-with-kicad/

https://github.com/mtl/svg2mod

How to prepare the files

Basics

Go crazy and draw, paint, design your boards as you wish!

some inspriations here: http://dusjagr.hotglue.me/

PIFcamp circuit Jesus.png

See some of our classics: File:MadLab_circuit_classics.pdf

MadLab 4093circuit Masks.png

Inkscape preparations

... still needs to be updated!

Example from ucok's Biosynth: http://lifepatch.org/Biosynth

ShenzhenReady Inkscape-instruction.png

The cut-milled border should be 2mm, some pcb manufacturers then just use a 2mm tool. this will be the cheapest, but reduced resolution in the sharp corners.

Important files and formats to export

  • Export as bitmap the following layers: Copper, StopMask, SilkScreen
  • 600 or 1200 dpi has been shown to give good enough quality
  • Export the cut-out layer individually (copy into new file) as .dxf
  • (the drill layer is best made in KiCAD)

Finalizing in KiCAD

First time KiCAD users

  • install and start KiCAD
  • Make a new project and define file path
  • Make a custom personal library for your crazy footprints and logos

Import using Logo-Importer

  • Be careful white means it's there
  • double check negative/positive
  • click export
  • navigate into your personal library and name it understandibly
  • find generated using your file browser .kicad_mod in your personal library
  • Find/Replace with text editor to change to your wanted layer (F.Cu, F.Mask...)

Panelizing for automated assembly

Send for manufacturing

  • Make extra notes to the manufacturer to use the file as is, or clarify all the weird shapes and layers.

Urs' favorite: http://www.pcbway.com/

  • limited colors for silk screen.
  • around 1$ for our typical size of pcb.
  • delivery usually around 10-15 days, delivery and customs can add 20-40 $