This is a tutorial on how to cast low-temp metal alloys using 3d printed molds. The process involves common tools and supplies - a 3d printer, silicone rubber, a hot plate, stovetop casting alloy, and a dollar store skillet. I used this process to generate locking plates for my Flat-Pack camera arm, but the same method can be used to cast more than metals - anything from chocolate to plastic, with the accuracy only limited to the precision and resolution of your printer.
Fritzing is an open source CAD-like graphical software for all operating systems that allows full interaction between breadboard, schematic and PCB views. Customers or other enthusiasts can wire up breadboard diagrams and then turn that into a schematic and even a finished PCB! Wouldn't it be cool if you could generate 1:1 perfect Fritzing objects right from a board file?
Instead of having a computer that talks thru the Arduino to a chip for programming, instead the Arduino itself programs the chip. This means you can program chips without having a computer involved. The good news about this technique is that it is incredibly fast, you can program chips 10x faster than with a computer and without having to type anything in.
This document is "The List" - it is the direct result of the overwhelming interest in starting Hackerspaces that hit my inbox after co-founding PSOne and HacDC. When so many people asked for help with the very basics of starting and running a successful Hackerspace, I compiled this list to make it as easy as possible for potential Hackerspace founders to hit the ground running (and not forget anything important). Since then, “the list” has been distributed and shared within Hackerspace culture. It has helped with structuring the success of many Hackerspaces - and hopefully with this update and public release, it will serve as a handy go-to checklist for your awesome Hackerspace-to-be.
Adafruit is a high-tech company, run by fairly young people. All of us working here have spent our lives with computers, technology, and the Internet. So it's not surprising that software and software-as-services (SaaS) are an essential part of running Adafruit. We're constantly on the lookout for useful new tools that can help Adafruit run efficiently, and cleanly.
If you end up buying a pick and place to assemble PCBs (or even if you're doing it by hand) you'll need to test out your boards! If you have an assembler do it for you, its still probably a good idea to have a jig you can give them. A good jig will tell you whats going right and whats going wrong. In this tutorial I will show how I designed a very basic jig with a "tested good" audible indicator. The board its testing is very simple but the basic premise can be expanded to large projects with ease.