PCB layout is tough. Laying out a PCB isn’t in itself too hard once you learn how the tools work, but high-speed (10MHz+) introduces a virtual mine field of potential issues that you may not be aware of until it’s too late. While experience is the best teacher, Analog Devices has a great application note explaining some of the key pitfalls to avoid when dealing with high speed designs (which is basically anything today): A Practical Guide to High-Speed Printed-Circuit-Board Layout. Some of it is a bit heady, but not more than it needs to be, and it really does lay out a lot of key information that you may not have been aware of. Want to improve your PCB design skills? Print this out, and keep reading through it until it starts to make sense. There’s years of bench time worth of information in there.
EEBookshelf: High Speed PCB Layout - [Link]
Converting an Inkjet Printer to Print PCBs. Ryan writes in… [via]
I really enjoy reading the Adafruit blog and thought my project would fit in perfectly. I’ve created an Instructable that follows my entire build process as I took a stock Epson C86 inkjet printer and modified it to print on copper clad board. Using this printer and a specialized ink I am able to simply print out boards and etch them. While this project has been done before I’ve yet to see a source where the modification is completely documented in a step-by-step fashion.
Converting an Inkjet Printer to Print PCBs - [Link]
redFrog Pick and Place machine – example of the pick and place process – [via]
This video demonstrates the process from solder paste application to picking and placing the SMD components to the final flowing of the solder. The picking and placing is done using the new redFrog pick and place machine.
redFrog Pick and Place machine - [Link]
Jeri Ellsworth just shared a post about how Charles Lohr has developed a method for making glass PCBs. Charles goes step by step in how he makes a touch controlled LED board. [via]
How to make Clear Glass PCBs - [Link]
RS Components has released PCB Converter for SketchUp, a software tool that converts CAD files in Intermediate Data Format (IDF) to Collada format for use in SketchUp. This enables designers to use SketchUp as a 3D CAD back-end for to PCB design and brings SketchUp into the electronic product design realm. [via]
Converter for Google SketchUp gives PCB designers 3D eCAD functionality – [Link]
I am using a positive photo-lithographic process to transfer the artwork to a photosensitized, copper cladded PCB laminate. Positive means, that during the development step the protective coating on the copper is removed in those places that were previously exposed to UV light. So the artwork has to block UV light where you want the traces on the board.
How you can make perfect PCBs yourself – [Link]
As the electronics hobbyist one of knowledge that we have to be familiar with is how to make our own printed circuit board (PCB). Making our own simple single side PCB actually is not require a sophisticated technique and technology as you might think, instead most of the required materials is already available at your home. I’ve started make my first single side through-hole PCB for a simple two transistors astable multivibrator project using just a water proof marker and draw the PCB layout directly on the PCB copper surface.
Make your own Microcontroller Printed Circuit Board (PCB) using the Toner Transfer Method – [Link]
Homemade QFP50 dangerous proto board test CNC precision:
I’m using the QFP50 dangerous proto board as a reference design to test the precision of a proxxon mf-70 retrofitted micro CNC. I’m quite happy with the results!
Homemade QFP50 dangerous proto board – [Link]