Building our April Fool’s Day project, the MarshMallowMatic, was a fun project but not without its fair share of trial and error. When heating flammable materials with an oxy-fuel torch, the biggest challenge is simply not setting them on fire.
In the video above — one of our first trials, before we had figured out how far away to position the flame — we wondered what would happen if we tried to “evenly” roast a marshmallow… with predictable results. Let’s just consider this an outtake.
Introducing the MarshMallowMatic: the world’s first dedicated CNC marshmallow toasting machine— capable of custom marking and toasting of marshmallows under robotic control.
The MarshMallowMatic is built from a special, modified version of our Ostrich Eggbot kit, fitted with a compact oxy-fuel torch:
The oxy-fuel torch can produce a 1″ (2.5 cm) long flame, with temperature in excess of 5000 °F (2760 °C). “And wow, can it toast marshmallows!”
Romy Randev of Looma is installing his latest piece, Penumbra at the Helix museum in Los Altos.
Penumbra is an interactive installation that responds to movement in its environment. Without any human interaction, Penumbra is disguised as a decorative glass wall. However, each colored glass tile illuminates individually as sensors that respond to movements control LEDs behind the glass.
Penumbra makes use of our Octolively modules, and we’ll be at Helix with Romy on Saturday March 29th, starting at 2:00 PM to talk about the art and tech behind Penumbra. Event information is available from Helix.
You never know what you’re going to find at the surplus store.
Over at RasterWeb, Pete writes:
I love the Evil Mad Scientist STEAM T-shirt but I thought there was something missing, so I changed it to STREAM because… Robots.
Remember to stream big, my friends!
Or, if you prefer, we’re halfway (well, 44% of the way) to Tau day, 6/28. A fine day to watch the Vi Hart‘s Anti-Pi Rant. And, a fine day to round up some of our finest Pi, Pie, and mathematics projects:
Pi blanket for Pi Day, and the Apple Apple Pie!
Sierpinski triangles out of polymer clay, and fractal cookies.
Fractal snowflake cupcakes, Fabric Klein bottle
Vector Snowflake generator application, and Symmetrisketch– for exploring other symmetries.
Christmas Chaos and Sconic Sections
Mascot costumes are often hot and sweaty, and mascots are expected to enthusiastically energize their teams. At FIRST robotics competitions, there are also traditions of dance parties during delays caused by technical difficulties, leading to even more activity in a warm, heavy costume than would normally be expected.
Cardinalbotics, an FRC team from San Francisco, made a mascot costume using an application of wearable electronics I had not considered before: cooling fans. The cardinal head was made of fabric sewn over shaped foam, with fans on the sides to keep everything cool inside.
The fans were wired up to an on/off switch and adjustment pot which were hidden in a velcro compartment in the back of the head.
Ian sent in this great Egg-Bot plot of a kiwi from…
…New Zealand (of course). Thanks for sharing your photos, Ian!
There are some gems on the list of HTTP error codes, including some that you may not have encountered before. We particularly like this pairing with the “Utah” teapot.
Photo credit: Windell H. Oskay/evilmadscientist.com
Gregg posted on twitter:
WaterColorBot experiments: moss+yogurt and algae+iron paint. With William Jennings.
We’ll be looking forward to seeing followups on these experiments!