brainwagon

I apologize for not updating my blog recently, but sometimes life intervenes, and it seems like you just aren’t doing too much that would be of interest. A combination of a home burglary, increased load at work, and perhaps just a touch of malaise brought on by the political season has meant that come evening, […]

Here in the Bay Area, the Space Shuttle Endeavour did a victory lap, passing over Sacramento, the Golden Gate and many other Bay Area locations. Pixar Animation Studios is in Emeryville, quite close to the Bay Bridge, so I thought we had a pretty good chance of getting a good view. Sadly, all my good […]

Earlier today, I tweeted: Okay, all major parts assembled.Now I just need the innards from Hobby King… twitter.com/brainwagon/sta… — Mark VandeWettering (@brainwagon) September 17, 2012 But I figured you guys might like some additional details. As I mentioned before, I decided to build a clone of the Axon, a nice light FPV platform designed by […]

For reasons which continue to escape me, Mark decided to let me try to take up another of his planes this morning. Last week, I took his EzFly up, with the net result of a mangled prop (which caused the heavy vibration in last week’s video) a cracked wing (repaired with Foam Tack, good as […]

Early on Sunday I was out at Home Depot and acquired some additional raw materials for my RC plane construction projects. I got a 4×8 foot sheet of 0.5″ pink foam, a 36″ chunk of 2″ angle iron, and a new 4 foot steel ruler (I know I had one somewhere, but darned if I […]

I was feeling pretty lazy today, but I still wanted to do something working toward an eventual new scratchbuilt RC plane project. I’ve been watching a lot of stuff on YouTube, most notably the videos by the Joshes at flitetest and the great YouTube channel of Experimental Airlines. Experimental Airlines seems especially great: he makes […]

Mark H. over at Eastbay RC and I finally got together to test out my first attempt at scratch building a radio controlled aircraft: an F-22 inspired “foamie”, which an aircraft constructed entirely from EPP foam, hot glue, a couple of short carbon fiber rods to stiffen, and hot glue. Did I mention the hot […]

I received my second email inquiry yesterday (yes, two whole emails) asking me why I hadn’t been posting to brainwagon lately. It’s gratifying that both of my readers would each send me a note asking if things were all right, so I thought rather than addressing you each separately, I could double my efficiency by […]

Three years ago, I wrote a short post about volume rendering. I always meant to follow up, because I finally sorted out the problems with generating multiple, overlapping images. Here’s a new video generated with the improved code: Fourier volume rendering is less flexible than raytracing, but it does have certain computational advantages, most notably […]

About once a year, I get the urge to push my programming skills and knowledge in a new direction. Some years, this results in some new (usually small) raytracers. Sometimes, it results in a program that plays a moderately good game of checkers. Other years, it results in code that predicts the orbits of satellites. […]

Today, around 10:31 Pacific Time, Curiosity successfully landed in the Gale crater on the surface of Mars, and has already sent back a couple of small black and white images. Carman and I were watching it on a combination of Nasa TV on our laptops and the CNN coverage. Thrilling stuff. Here are some of […]

Okay, I haven’t made a lot of headway, but I did at least print out the pattern for my F-22 and cut the pieces for it. It’s literally the very first time I’ve done this, so the pieces aren’t perfect, but they aren’t bad. Witness: I basically made the patterns by printing out the pieces, […]

Just a quickie Arduino project that I ran across this morning: Sudoku on the Arduino. It’s pretty cute, since it uses the Arduino tvout library to generate video, meaning that you can display and play on your TV set. Neat! The only real description of the project is inside the zip file which you can […]

Do I really need another hobby? Sigh. Oh well, it appears that whether I need one or not, I’ve taken my first tentative steps into the world of radio controlled airplanes, and I have Mark H. of the Eastbay RC blog to blame. Mark is a fellow Pixarian, and has lately been sucked into the […]

I have an on-again, off-again love affair with beacons. I spent many a day monitoring QRSS beacons on 30m, and have built a series of different beacon transmitters. Most of my work has been inspired by Hans Summers, G0UPL, so when I found he was selling something called the Ultimate QRSS kit for a mere […]