Jean-Baptiste Labrune and his research group at MIT’s Tangible Media Group have been experimenting with using a laser cutter to turn ordinary materials into printed circuit boards (PCBs). [via]
They have a clever process for making the traces. Since it is very difficult to cut metal with a laser, they can’t start with a solid sheet of metal material and burn away the parts that they don’t want. Instead, they put a piece of masking tape over the material that they want to make traces on, then use the laser to burn off the tape in places where they want metal to be. Finally, they use a paintbrush to apply conductive paint into the newly cut grooves, and remove the masking tape mask. They’ve got some more photos of the process in a Flickr set.
Laser cutting circuit boards - [Link]
Are you ready to wake up from the cult of Arduino? Tired of plugging together black-box pre-built modules like a mindless drone, copying and pasting in code you found on Hackaday? You’ve soldered together your TV-Be-Gone, built your fifth Minty Boost, and your bench is awash with discarded Adafruit packaging and Make magazines. It’s time to stop this passive consumption. It’s time to create something that is truly yours. It’s time, my friend, to design your first circuit board. And you’ll need a machine to print it.
Outsourcing printed circuit board (PCB) manufacture can be expensive and slow. You want your board now, for free. And designing PCB’s is hard. You’ll make mistakes, and some boards will be wasted. You can etch your own PCB’s at home but the process is fiddly, and notoriously difficult to perfect. What if you had a printer that could make PCB’s? A rapid prototyping machine for circuit boards.
In this talk I will present my progress towards an inexpensive PCB printer by reverse engineering Epson inkjet technology. And I’m not talking about the crappy print-and-bake method you might have seen on the internet. Come and learn about the miracle of microfluidics within the modern consumer inkjet printer, and how to push it to do new, exciting things. I’ll be describing some reverse engineering techniques, a bit of electronics circuit design and the potential for 3D microfabrication with inkjet technology.
A PCB will be printed and etched live, on stage, at 27C3! [via]
Printing circuit boards lecture - [Link]
This project is a PCB etching solution rocker that uses a servo motor to agitate the etching solution. The base is build from wood and the servo is controlled by a PIC 18F2620.
PCB Etching Solution Rocker – [Link]
This project is a UV exposure box with timer using small UV florescent tubes. Instead of purchasing a tube with ballast the author used the small ballasts from florescent fixtures. He also added a timer to control the exposure time precisely. [via]
DIY Circuit Board UV Exposure Box with Timer – [Link]
This project shows how to build a PCB UV exposure box using UV LEDs and digital multifunction timer. Check details on the link below.
PCB Photographic Artwork Transfer UV Cabinet – [Link]
Jacques Lebrac build a UV LED exposure box using only one LED. The led used is a 5W unit, emits at 400 nm UV and needs 1.5A of current. As a heatsink he used an aluminum arm that also supports the LED on proper distance. A LM117 is used to regulate the power driving the LED. [via]
Single LED UV PCB exposure box - [Link]
A how-to guide to taking your electronics project from prototype through to high volume PCB manufacture. Covers component selection and purchasing, SMD, DFM, PCB panelisation, gerber generation, drill files, pick and place files, and more.
PCB Design For Manufacture Tutorial – [Link]
Looking to add some fancy graphics to the silkscreen on your next printed circuit board? If you’re using the totally awesome open source Kicad EDA suite, look no further!
For an upcoming project, Wayne and Layne wanted to add a QR code image link to one of our circuit boards. The image conversion tool built into Kicad had some issues, so we quickly wrote our own with the features we needed.
Adding graphics to your Kicad PCB – [Link]
Rhys Goodwin managed to print a PCB with a silkscreen using a modified inkjet printer. He used a inkjet/toner hybrid method to print the PCB. The hybrid method can stand up to Cupric Chloride etchant which is helpful when you don’t have access to Ferric Chloride. First Rhys Goodwin prints with black ink, then he covers the board with laser toner and finally blow the excess toner and bake the board. With board bake the pcb traces can resist the etching acid. The same method is used to print the silkscreen. [via]
Direct PCB inkjet printing - [Link]
This article discuss how to make your own PCB at home. It talks about drawing the PCB, printing, UV exposure the PCB, developing, etching, cleaning, protecting and finally drilling it. The article also includes some PCB material suppliers. Check it out.
Etching your own PCBs – [Link]