KBD.news is a blog and weekly newsletter on DIY mechanical keyboards. A hand-picked selection of features from a keyboard enthusiast's perspective (more + contact).
Weekly RSS: https://kbd.news/rss.php
This is an independent DIY search engine that focuses on non-commercial content, and attempts to show you sites you perhaps weren't aware of in favor of the sort of sites you probably already knew existed.
The software for this search engine is all custom-built, and all crawling and indexing is done in-house.
This search engine isn't particularly well equipped to answering queries posed like questions, instead try to imagine some text that might appear in the website you are looking for, and search for that.
Where this search engine really shines is finding small, old and obscure websites about some given topic.
REST API: https://memex.marginalia.nu/projects/edge/api.gmi
E-mail the admins for an API key.
A Playstation 1 Modchip written in Python. Contribute to ColdHeat/PsNeePy development by creating an account on GitHub.
We are building the Global Village Construction Set. This is a high-performance, modular, do-it-yourself, low-cost platform - that allows for the easy fabrication of the 50 different industrial machines that it takes - to build a small, sustainable civilization with modern comforts.
Catalog page for a simplex repeater unit that you plug a radio into.
First page of an explanation of building your own cloud infrastructure.
A database of what kind of adhesives should be used to glue something to something else.
How to construct your own brick oven from scratch. Granted, you'll have to put it in the back yard and it looks like a bunker. Heavily illustrated.
A CC-licensed cheatsheet for building with and programming the Arduino.
How to build your own non-destructive book scanner to archive texts. Total cost: less than $300us. It's pretty speedy, too - on the order of 1200 pages per hour.
The DIYLILCNC is a fully functional, open source 3-axis CNC that you can build with basic tools and parts that can be locally sourced. The idea is that you develop a 3D design in a CAD application, put feedstock into the CNC, and print your design to it, and it cuts and grinds away everything but what your design is supposed to be. Total cost of construction is about $700us. You can download the plans and DXF template files from the website for free (they have a CC-BY-SA license).
OpenPCR is a fully functional yet affordable ($599us) PCR (polymerase chain reaction) device, used for replicating DNA for the purposes of sequencing or barcoding (species determination). The whole kit - from the software to the hardware itself - is open source, so you can download the code, CAD, and Eagle files and build your own if you don't want to buy a kit.
A blog post at Green Terra Firma detailing a number of DIY vertical wind turbine designs.
Wikihouse is an archive of open source building designs contributed by engineers and architects around the world. Each design is peer-reviewed and analyzed by others to ensure that the designs are sound. Some of them have already been built and the results posted for further review. The design principles include being as easy to build by people with minimal formal training, as energy efficient as possible, and easy to modify to fit a particular purpose. All designs are made in Google Sketchup and can be cut with an automill if available.
An online archive of old electronics texts, most of which have to do with vacuum tube circuits and suchlike. These are considered core texts of radio because they formed the body of knowledge that we learn today. They are most certainly of interest to people who restore old radio sets.
The Universal Construction Kit is a set of open source components that you can fab on a 3D printer, which allows the user to hook together different construction kits without duct tape or twist-ties. The components make it possible to use Lego, Duplo, K'Nex, Lincoln Logs, and other construction kits in the same project simultaneously.
The whole set can be downloaded as a .zip file from the website.
The .stl files carry a Creative Commons By Attribution/Noncommercial/Share Alike v3.0 license.
Note that the .stl files are in inches, not mm. Double-check the settings of your 3D printer before fabbing!
A collection of hand-wired, homebrew processor cores made out of discrete components.