Learn some cyr wheel manipulations when you are tired of spinning or get dizzy :) I go through some of the basics on how to do this trick. Be careful! One of the first times... [read more]

I’ve been doing some more experiments on my V-36 unicycle handlebar. The original version was just a basic T with bar ends. The T wasn’t too wide, but MUCH wider than stock handlebars (such as... [read more]

Cyr Wheel / Roue Cyr Tutorials: Rock start or side to side start, to waltz Here is another intermediate to advanced trick that took me a while to get. Really it was all about doing... [read more]

Here is a video tutorial on how to do the Superman move in a cyr wheel (roue cyr). This trick took me a long time to learn, and I’m still not perfect at it. Eventually... [read more]

My downstairs guest bathroom remodel project continues. Last status was posted in “Downstairs Bathroom Remodel, shower pan, etc“. After I built the shower pan, I installed the 1/2″ cement backer board, being sure to not... [read more]

I’ve had the unfortunate affair of several people stealing one of my videos to gain hits on their Facebook pages. It is this video: LED Cyr Wheel v2 – Initial Test, that I uploaded to... [read more]

I ordered a small switch from Grainger and it came in a huge box: What a waste of packaging!! Shame on you guys. Please don’t overpack; it is wasteful.

I have had my geared 26″ mountain unicycle since about 2009. It is a Kris Holm 26″ frame (KH26), the Schlumpf 2-speed hub, and a custom handlebar I made. I’ve gone through a few tires... [read more]

This is mainly for myself to remember what I did. I built this half wall, but it seemed flimsy. I didn’t want it to move *at all* as it might cause tile to crack: I... [read more]

Wicked Device is making a cool little Arduino clone called the WildFire. Why is it cool? Because it includes the CC3000 Wifi chip built in, an SD card slot, and the ATmega1284p processor – which... [read more]

Did some climbing in Red Rocks, Nevada last weekend. This is more of a record and reminder for myself. Last time I was there was in 2005 back when I was a strong 5.11 climber.... [read more]

UPDATE: Thank you Aria hotel! They are going to update their signage and start towing offenders. I just talked with someone from the security team and they are on top of this. They are also... [read more]

So, I got my new rebuilt transmission from MOFOCO. I put it back in the car and buttoned up the rear end entirely. I then attached the shifter…but, it wasn’t shifting! So, I posted on... [read more]

Adafruit has a CC3000 breakpoint board for $35 on their site. Rather expensive, considering the chip should be $10, but it adds some nice features and they wrote a library for it. Cut to the... [read more]

I finished designing a custom PCB for my LED cyr wheel. It simply combines all the chips I use into one board. Ideally I would eliminate all of the other boards except the Teensy, but... [read more]

With my LED cyr wheel I kept getting random errors in reading data from my SD card with Ardunio code. Sometimes init would fail, even at half speed. Most often I would get corrupted data,... [read more]

An oak tree fell down at the end of last winter and I ended up with a lot of great firewood. I saved a few pieces for woodworking (we’ll see how those turn out), but... [read more]

Some pictures of my work with Velocity Circus at an event for UCSF Photos by Hiromi Yoshida, Courtesy of Gregangelo & Velocity Arts & Entertainment

Self Portraits, Corbin Dunn, LED Cyr Wheel v2, September 11, 2014. Canon 5d, a timer of 10 exposures manually set for a specific aperture and shutter speed. Man Silhouette Pattern Test Single Pattern Test

So, I’m getting a new transmission for my VW bug (number 3), and probably buying it from http://www.mofoco.com/category/Rebuilt_VW_Transmissions/c112. What drive ratio should I get? They can do a few different options. My bug is/was currently... [read more]

In my last post on the bug, I had mentioned that I replaced my brushes, hoping it would fix some noise I was getting in the transmission/motor area. It didn’t help, and I then replaced... [read more]

I finally finished my Kitty Cabinet. I had to wait for some more Water Based Poly finish to come; I had accidentally ordered “gloss” when I really wanted “satin”, so it had to be put... [read more]

Rome Street Camogli, Italy. August 2014. HDR from 5 exposures. Canon 5D Mark III, 24-70mm lens. No tripod; supported by a plant for a bit.

Camogli Camogli, Italy. August 2014. HDR from 5 exposures. Canon 5D Mark III, 24-70mm lens

The rear end of my car has been making quite a bit of noise lately. It seems to only happen when I apply power, and I wasn’t too sure of what it was. If I... [read more]

One coat of Target Coatings shellac (amber), lightly sanded and then one coat of their water based Polyurethene (9000). Time to order more….

I’m building a little cabinet to hold the kitty litter box, and some accessories. On top I plan to put the cat’s food and water bowls, to keep them out of reach of bad doggies.... [read more]

I made a new handlebar for my geared KH26. I was using the KH T-bar, but it feels really flexy and it feels like the seat will eventually break from the pressure I put on... [read more]

I took some demo code and modified it to do a fire pattern in the cyr wheel:

This is a plot of the angular velocity vector when spinning in my cyr wheel. I took the gyro x/y/z value and created a vector (squared each value, added them, and took the square root).... [read more]

I have a accelerometer/gyro/compass combo in my wheel LSM303DHLHC, data sheet: http://www.pololu.com/file/download/LSM303DLHC.pdf?file_id=0J564 found via Pololu’s link: http://www.pololu.com/product/1268 It has been tough to figure out consistent data. First of all, I realized the compass has to... [read more]