Home Blog  





3 May 2011

rucalgary modified an Epson printer to print PCBs. The results look good, but the printing process isn’t simple. It requires multiple passes and a heat gun, check out the video after the break. [via]

Epson PCB printer hack – [Link]

17 Apr 2011

Kelvin writes: [via]

I was designing PCB using Kicad recently. For slightly more complex board, I was lazy to route them and instead use the in-built autoroute feature. Kicad autoroute feature seems inadequate. This is when I found the free autorouting tool at FreeRouting.net

To use the tool, one needs to export the PCB design to standard Specctra DSN interface. Kicad can do that. Critical traces can be hand routed first, and the tool respects design rules imposed by designer. Once that is done, you can go for a coffee break, while the autorouter does the crunching. For the board that I tired out, I am impressed with the result.

Online PCB routing software – [Link]

17 Apr 2011

This application note gives PCB design tips for reducing EMI in automotive environments. A lot of the advise can be applied to any PCB layout. [via]

Electromagnetic interference (EMI) and electromagnetic compatibility (EMC) testing is an important part of design verification for serializer/deserializer (SerDes) devices in automotive applications. EMI and EMC must be considered early in the design cycle to prevent needless design revisions. The following application note details helpful, basic concepts and guidelines on how to prepare your SerDes system for EMI/EMC testing.

Designing PCBs for automotive applications – [Link]

14 Apr 2011

stephenhobley.com writes:

Vinegar – Distilled White Vinegar – diluted with water to 5% acidity (Meijer)
Peroxide – 3% solution (Meijer)
Salt – to taste. (Just keep adding it until the “fizzing” continues all by itself).

Hydrogen peroxide is what we call an oxidizing agent (a mild one), meaning that it easily accepts electrons from other species to form H2O (hydrogen peroxide itself is electron deficient). What happens when it “dissolves” copper metal is that a neutral copper metal atom releases two electrons, to form a Cu2+ ion in solution. All metals tend to release electrons to form positively charged species….we refer to anything that DONATES electrons as a reducing agents. The strength of metals as reducing agents varies and copper is a fairly weak reducing agent.

Hydrogen Peroxide, Distilled White Vinegar and Salt as a PCB Etching Solution – [Link]


14 Apr 2011

dangerousprototypes.com writes:

We recently ran across another 3D printable PCB accessory on Thingiverse. This time it is a stand-off that slips on the edge of a PCB and the edge of a piece of plywood. This is a quick way to mount your PCB on the side of a project or into a project enclosure.

3D printable PCB stand-offs – [Link]

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]



 
 
 

 

 

 

Search Site | Advertising | Contact Us
Elektrotekno.com | Free Schematics Search Engine | Electronic Kits