Making your own PCB boards for DIY electronics projects is not difficult. Doing so as a DIY project is extremely handy and allows almost anyone to custom design one-off, or small batch circuit layouts relatively quickly and cheaply, without the need for the volumes or costs involved in using the services of professional circuit board manufacturers. With care, DIY PCB project results are usually of extremely high quality and are very satisfying. Even more interest can be added to projects when printed circuit boards are combined with CNC cutter designs for shaping of the circuit boards.
There are various different methods for making PCB boards. Each method has various pros and cons, with most considerations being linked to cost, quality of finished product, accuracy required for fine circuits and availability of chemicals and materials.
DIY Etching of Printed Circuit Boards (PCB) - [Link]
Applied Science @ youtube.com writes:
I built a microbalance based on a design by Paul Grohe: http://www.youtube.com/watch?v=n90whRO-ypE
It is has a precision of about 5 micrograms, and I measured a single eyelash at about 35 micrograms. The balance is built from an analog panel meter that is controlled by a servo loop which optically monitors the meter’s position. Adding mass to the meter’s needle requires that the servo loop add more current to maintain the needle’s position. This additional current is read, and converted to a mass value.
Measure the mass of an eyelash with a DIY microbalance - [Link]
Tutorial on how to make your own custom LCD at home!
DIY Custom LCD - [Link]
This welder, thanks to the limit switch, after lowering the upper electrode arm, automatically enables the welding process in a safe and proper way. First, it waits 1 second so that the user have time to clamp electrodes on welded material, and then turns on the weld current for time in the range of 0 – 4 seconds, which is set by the potentiometer. This allows both hands to be free, and there’s no need to use the foot switch.
Semi-automatic spot welder 2,6V 1kA - [Link]
In this mini tutorial we introduce a quick and cheap way to make your own Nixie Tube sockets to use them on your next Nixie project. A socket enables you to change a damaged Nixie Tube quickly and with minimum effort.
- plastic stand-off bases that comes with many of the Nixies
- universal IC socket header
- glue (optional)
- common tools
Reka Kovacs writes:
We are building an ArduSat (according to the Cubesat standards a satellite 10 cm long at the edges and 1 kg or less), on this satellite we would put up to 5 Arduino’s and plug in 50+ sensors into them as well as 2 optical and 1 IR camera. Once the satellite is on orbit we would then give access to the general public/citizen scientists to the payload ( Arduinos, sensors and camera) to upload their own scientific experiments. We plan to capture the attention of the DIY community, hackers and makers, amateur astronomers and in general those interested in space exploration and the next frontier.
Sensor wise we have so far magnetometers, tachometers, plasma sensor, photometer, thermometer, pressure sensor, space radiation (bitflip) sensor, Geiger counter and 2 optical and 1 IR camera etc.The idea is that people can rent scientific packages for a week, during the week they run their experiment we will send data constantly back to them to analyze. Imagine general public, including teachers having access to experiment platform in space for a couple of hundreds of dollar and they analyze data and engage students, friends etc., it could revolutionize the way people see space. Also we are looking for feedback from people interested in the project. We want to hear their ideas or sensors and experiments!
ArduSat – Your Arduino Experiment in Space - [Link]
Back in 2009, I needed some bend sensors for a sign language translation glove I was making for fun, and the commercial ones that just came out were over my budget considering I needed at least 10.
Then I came across plusea’s DIY bend sensors on Instructables.
It was what I was looking for but I had one small problem. Well, a few problems actually. (Not with the ‘ible of course)
All the different instructables required the use of neoprene, or at least conductive thread and conductive fabric.
I could get the anti static bags locally, but getting the above items would mean the total bill (after shipping and currency exchange rates and tax) would consist of mostly that, and not the cost of the items.
DIY Bend Sensor using only Conductive Bags - [Link]
HP Pavilion DV9000 – DV9500 Series GPU Reflow FIX. This video shows how to repair Nvidia GPU issue on HP Pavilion DV9000 series laptop. In this video you see a DV9500 motherboard, this laptop had a completely black screen that fixed using this method.
Other common symptoms are:
- Black Screen
- Vertical – Horizontal lines
- Color flashes
- image distortion
- Laptop power off
- RGB lines
HP Pavilion DV9000 Series Laptop Display Repair – GPU BGA Reflow - [Link]
Jordan Bunker writes:
Conductive inks have a myriad of different interesting applications. As a quick, additive construction method for electronic circuits, they are especially intriguing. Unfortunately, for a long time they have been just out of reach of the hobby market. They are too expensive to buy in decent quantities, too complicated to make, too resistive to be practical, or require high annealing temperatures (which would ruin many of the materials you’d want to put traces on).
Make your own Conductive Ink - [Link]
Eric Mack writes:
This DIY cell phone created at MIT manages to have something for just about every major contemporary subculture or hipster subset I can think of.
Nerds and tinkerers? Check. Wooden case for the steampunk set? Check. Huge antenna for the retro, skinny-jeans-wearing set? Check. Big buttons for the fat-thumbed and Luddite crowd? Check. Rugged design for outdoorsy types? Check.
The folks at the MIT Media Lab created this prototype with an SM5100B GSM Module that takes a standard SIM card and a custom circuit board. The screen will take you back to the last century at 160×128 pixels and the laser cut wood and veneer enclosure is just one of many possible exteriors, given the availability of 3D printing. While far from a smartphone, voice, texting, and other slightly old-school functionality is possible. All told, the parts cost between $100 and $150.
Awesome DIY cell phone has universal appeal - [Link]