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12 Apr 2011

throbscottle writes:

This project is a result of needing to service a domestic electronic item without being able to obtain a circuit diagram.

The process proved to be very long and painstaking, but also very rewarding. The steps presented here are not exact, and you will no doubt find your own way of working which is more effective in the case of any particular board. However, I believe the basic procedure is essentially correct for the majority of boards which are too complex to reliably hand trace. Without the need to invent the process, things should progress more quickly.

How to reverse engineer a schematic from a circuit board – [Link]

12 Apr 2011

mattthegamer463 writes:

The world of electronics is moving further and further away from Through-Hole components and towards SMT (Surface Mount Technology) every day. Sometimes this doesn’t always go well for the enthusiasts building at home, so we have to adapt.

DIY SOIC to DIP Chip Adaptors – [Link]

10 Apr 2011

The Open Source Hardware Logo in gEDA PCB format @ EMSL. [via]

The Open Source Hardware Logo in gEDA PCB format – [Link]

8 Apr 2011

pcbheaven.com writes:

Salvaging parts from old PCBs is one of the most important things that a hacker or a creative electronic enthusiast must have high in his agenda. I used to hack parts with the soldering iron, de-soldering pump and wick, but that is time-consuming and absolutely inefficient. Here is one cool (HOT) way to completely strip a PCB from it’s parts in no time, no matter how difficult it looks.

How to salvage parts from PCBs – [Link]

25 Mar 2011

dangerousprototypes.com writes:

When you make PCBs with the toner transfer method, you have to spend around 10 minutes per board sweating over a hot clothes iron while the toner melts to the PCB.

Ahmad Tabbouch though a laminator might be an easier solution, but the default temperature is too low. This tutorial shows how to hack a cheap laminator to run hot enough for toner transfer.

Easy toner transfer PCBs with hacked laminator – [Link]

24 Mar 2011

adafruit.com writes: [via]

If you’ve ever wondered how PCBs are made (and why it’s probably not a fun business to be in), you might find these photos interesting showing the different steps of PCB manufacturing from drilling to curing the solder mask.

PCB Manufacturing Process Photos – [Link]

22 Mar 2011

sponges writes: [via]

Though there are many Instructables on some aspect of how to make circuit boards, this one is different. This is also an instructable on how to make the things you need to make circuit boards, specifically, a flamboyant business card toy. Over the past six months I have set up fairly complete printed circuit board fabrication lab in my apartment, cheaply and safely, and I intend to cover all aspects of the process, from start to finish, in as wide a scope as I can. Some of it you may have seen before, but here it is all in one place, in detail, with references.

How-To: Set Up a Basement PCB Fab & Use It To Make a POV Business Card – [Link]

21 Mar 2011

Protoflex is a set of flexible circuit board stickers for SMD development. Peel off a footprint, stick it on 0.1″ protoboard, and solder surface mount parts directly on the sticker. Brilliant use of flexible PCBs. [via]

Flexible PCB, self-adhesive, component adapters – [Link]

20 Mar 2011

tehnikservice.net writes:

Nice project from Petar , he send me some photos of his UV Box. This UV LED Exposure Box was published in the magazine Emiter, and here’s what the author says on this project.

My UV box contains 54 ultraviolet 5mm LED distributed in a matrix of 9X6 leds. The box can enlighten board with maximum dimension of 12X18cm. Built-in digital timer allows programming of the desired time for lighting.
Keep away your lights from direct UV light from box. Wavelength of the LED is the same with the sensitivity of the UV spectrum of photo spray Positive 20.

UV LED PCB Exposure Box – [Link]

18 Mar 2011

Stencil Printer universal tooling Design (open hardware), Marc writes: [via]

this was my design of stencil printer tooling it almost universal and work for single / both side Printing whit keep fix PCB height. hope it will usefully for some one this was also a approved by cat product …

Stencil Printer universal tooling Design - [Link]





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