
Do you want to add computer vision to your project? Do you want to make your own 3D images, vision-based musical instrument using a kinect, or teach your robot how to follow a ball? In this class Ingenuitas, the maker’s of SimpleCV, will give you an introduction to performing computer vision with python. We will cover the basics of computer vision and provide a brief introduction to python. This 2.5 hour class will start with a 90 minute tutorial, followed by an hour of demos where we will show you how a number of awesome projects that were made in just an afternoon. We will conclude with an hour or more of open instruction where we work on projects and the instructor will provide discussion relevant to student interest and one on one feedback. Students should bring a laptop with SimpleCV installed and a web cam or Microsoft Kinect. Students should install SimpleCV and python before attending and bring either a web cam or Microsoft Kinect.
Laser slicing
While uploading a model to thingiverse, I noticed an ultra cute Cthulhu and had to print it immediately on the Makerbot at NYC Resistor. Then I had an idea that the same process that generates the gcode shells for the makerbot could be used to generate slices to be cut on the laser cutter.
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Morse code keyboard
Have you switched your QSOs to PSK31 or some other digital mode, but miss the joy of sending CW with an iambic paddle? Then here’s a project for you.
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Dome If You Want To
Tonight, we assembled our new 16′ diameter PVC dome. The result of two solid Saturdays of work, it came together beautifully. Now we just need to disassemble it and move all the furniture back in before tomorrow’s class…
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A few days ago, one of our newest members, @dustynrobots shared a link to some amazing Valentine’s day cards with the rest of the group.
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These amazing Valentine’s day cards for makers by Steve Hoefer are sourced from old public domain US Patent Office. They’re awesome and hilarious, and have inspired us to make a few things.
First, it got me to make the ecard site that I’ve been thinking about for a while now. Postkin’s GeekCards are free, funny ecards for the geeky people in your life. These cards were so amazing, once Steve agreed to let me use them, I had to get the site built in time for Valentine’s day!
Now that the site is built, I’ll be adding more geeky ecards for other events soon! It’s also flash-free and built on web standards so you can actually view the cards when you get the email on your phone.
Hope you enjoy the ecards, and if you have ideas for other geeky ecards we can create, please let me know!
In the meantime, Trammel has been working away on letterpressed editions of these cards on our Intaglio press. Hopefully we’ll have some more pictures of the process and finished cards soon!
Trammel has a great writeup on using the letterpress, but if we pester him in the comments and maybe he’ll do a post about the process of making these plates and some of the other amazing new stuff he’s been up to with the letterpress lately!
Hacking the Gilson
Like playing chase-the-laser-pointer with a kitten.
After a couple weeks of hacking on the Gilson we have PID* control.
When we first saw the Gilson, we didn’t have access to any feedback mechanisms. All we had were panic stop modes of control. After a ton of experimentation, and Nick reading five control theory books, we are having fewer incidents in which someone yells “Holy Crap Make It Stop Before It Destroys Itself!” It’s not yet a null set, but the cardinality is significantly reduced.
<cue loud bang>
* proportional integral derivative
Raph’s “Puncher” freelance time tracking device
Raphael Abrams shows us his Freelance “Puncher” time tracking device. After trying many different methods for keeping track of his hours, Raph created this little puncher to easily clock in and out of his freelance work.
Check out the code and schematics here: https://github.com/raphaelabrams/freelance-puncher
Let there be backlight!
When life gives you busted up old LCD panels, make… lightboxes! I constructed this one out of the CCFL backlight from an old laptop LCD I found around the space. It gives a nice, even white light, and runs off a 9V at about half an amp.

The inverter for the backlight was long gone, so I replaced it with one of these inexpensive CCFL inverters from MPJA.

A little hot glue and acrylic cement later, we have a perfectly serviceable lightbox. Now, what ever could we use one of those for?
Arduino: The Documentary
We’ll let this bit of awesomeness speak for itself 🙂 Check out all the Resistor cameos!
Learn more here!
http://arduinothedocumentary.org/
Video: Bill Ward’s Simple Serial Display
At a recent meeting I had a chance to sit down and check out Bill’s “Simple serial display” which, true to it’s name, is simple, but that doesn’t stop me from wanting one badly! Watch the vid to see it in action, and check out Bill’s earlier post for more info!





