A few years ago I used your bristlebot design for one of my kid’s classes as a project and it was such a success I’ve done it for each kid (I have 4).
We also made made “pontoon” versions of your bristlebots with 2 toothbrush ends underneath a cardboard oval so it looked like a beetle and gave the kids more decorating space.
Well, now I needed a new project and I came up with the easiest, cheapest Scribblebot I’ve come across, using mostly your bristlebot construction.
The big discovery is that a Dixie cup plus mini markers keeps the whole thing so lightweight. Then put your foam taped pager motor and battery combo on top. It was also way cuter with some antennae and googley eyes. Thank you again for your great bristlebot – it’s made me the most popular mom in each of my kids’ classes.
The bots shown were made by her daughter Kate who also demonstrates them in the video clips. Thank you Kate & Jessica!
For Lady Ada Lovelace Day this year, I want to celebrate the participation of so many unsung women in technical endeavors of all kinds.
Ada Lovelace Day is an international celebration of the achievements of women in science, technology, engineering and maths (STEM).
I love that Lady Ada Day gives the opportunity to make women more visible. I am paying homage with some images from Maker Faires this year of girls and women of all ages participating in and helping to guide hands-on activities. Here’s to the many women who aren’t as celebrated but are still involved and making things better for all of us!
Our two “dis-integrated circuit” kits are the Three Fives Discrete 555 Timer, and the XL741 Discrete Op-Amp. These two kits are functional, transistor-level replicas of the original NE555 and ?A741 (respectively), which are two of the most popular integrated circuits of all time.
Last year, we wrote up a detailed educational supplement for the Three Fives kit, that works through its circuit diagram and discusses its principles of operation down to the transistor level. Today, we are doing the same for the XL741 kit, and releasing an educational supplement that explains how a ‘741 op-amp IC works internally, down to its bare transistors and resistors:
This ability to peek inside the circuit makes the XL741 a unique educational tool. In what follows, we’ll work through the circuit diagram, discuss the theory of operation of the ‘741 op-amp, and present some opportunities for experiments and further exploration.
I took a heap of pictures at the 2nd annual Silicon Valley STEAM Festival at the Reid Hillview Airport in San Jose today. This event brings out an eclectic mix of hobbyists, scientists, and enthusiasts showing off what they do. Below are a few of my favorite moments.
The local RC aircraft enthusiasts not only displayed their aircraft, but also put on an airshow. They also fly at Baylands Park, and encouraged coming to see them on Sundays.
In modern times, our contemporary Maker and Maker education movements have helped to rekindle our cultural interest in hands-on education, especially in the STEM and STEAM fields, in a way that hasn’t been seen since the 1960s — which is why it’s such a good time to bring this book back.
Interacting with EggBot, an art robot that can paint very intricate and precise designs on eggs. EggBot taught students about digital design, computer numerically controlled machines and robotics. This was also a fun way to celebrate National Robotics Week!
The Hill Country Science Mill is celebrating its grand opening on February 14th. It’s a new science center in Johnson City, Texas housed in a historic feed mill built in 1880 as a steam grist mill and cotton gin. This picture of their WaterColorBot is from a preview day in November. A “Fall in Love with Science” event sounds like a great way to celebrate Valentine’s Day!
Carlyn Maw’s How to Pick a DIY Electronics Project is so much more than that! It is an excellent tool for planning for just about any project. It covers thinking about project scope, tools, skills, parts and more.
Many of the questions are phrased for electronics, but most of them are applicable no matter what project you’re thinking about. And even if you have already picked a project, you can use the questions as guidelines for ways forward and to illuminate possible stumbling blocks.
We often get asked about what project to pick, and I’m glad to have this thoughtful tool to share.