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Archive for January, 2009

Non-Apple TV Update

Saturday, January 31st, 2009

Mac Mini G4 Non-Apple TV

Update:  The Non-Apple TV Apple TV has undergone some minor updates.  First, the 12″ PowerBook has been freed and is portable again.  In its place I have installed a Mac Mini 1.42GHz G4 with 1GB RAM, 80GB HDD and an external 250GB LaCie Mini Hub.  Functionally the Mini is pretty much the same as the PowerBook, the main advantage is a smaller footprint and regained use of the PowerBook as a portable system (once I replace the battery).  As an added bonus, the Mac Mini, Mini Hub, Cinema Display and EyeTV all look pretty good together.

The Air Mouse client and server software were also updated.  The new software adds some nice features including a panel/setting with only media controls, one for web browsing, and custom programmable keys.  The media panel is very usable with large high contrast buttons and almost makes up for the lack of an Apple remote on the PPC-based Mini.  More info on the new Air Mouse features on their site: mobileairmouse.com.

You may have noticed the holes in the front of the Mini Hub.  I drilled these for additional cooling when the original fan in the drive failed.  The original drive in the Minihub was 500GB and generated a lot of heat, and subsequently used the cooling fan quite a bit.  Along with new larger front-mounted fans, the Minihub now uses a 250GB drive that seems to run fairly cool and rarely gets hot enough to trigger the fans.  The lack of noise is appreciated for this application.  My Mini Hub case modification in detail for your review:

Bike Camera Mount + Snow

Sunday, January 25th, 2009

Snowy Trail

Earlier I gave my impressions of the ATC3K waterproof video camera. I recently built a custom mount to attach it to a bike, tested the mount as well as the camera’s waterproof claim.

Disc Tab Camera Mount

The mount utilizes the rear disc tab on the UK-14er (I knew I had that tab added for some reason). The mount is very simple and consists of a piece of Lexan and some mounting hardware. The Lexan is 0.10″ thick and seems fairly rigid. An aluminum plate would make a more rigid mount, but it probably isn’t necessary with such a light camera. Anyway, the hardware is some cut 1/4-20 threaded rod, a few washers, nuts and wing nuts for easy adjustment and assembly. Bolts could and probably should replace the threaded rod and nuts, but I didn’t have any 1/4-20 bolts around and I wanted to make sure none of this hardware ended up in the spokes.

Disc Tab Camera Mount

The camera is just out of range of my heel when clipped into the pedals. While this is good for the camera’s longevity, a constantly spinning pedal/foot in the middle of the frame is a little distracting. The mount does allow the camera to mount forward or backwards as well as tilt up and down so foot-free angles are an option.

Disc Tab Camera Mount

As far as the waterproof testing goes, I tested the camera mount during the first snowfall we’ve had this year. I suppose I only tested the water resistance of the camera, but either way it didn’t seem to mind being covered in mud and snow. This is a pre-ride photo, but you get the idea.

Disc Tab Camera Mount In Action

Finally, a video from the new mount:

Phoenix Bikes

Sunday, January 18th, 2009

Phoenix Bikes

Some how I’ve gained a reputation for wanting bikes and related parts. In the two years that we have been in our current house I’ve amassed a collection of somewhere around nine bikes and several boxes/piles of parts. As navigating the basement has become difficult, I’ve been gathering some of these parts and bikes with the intention of donating them to Phoenix Bikes in Arlington, VA. Phoenix Bikes is an bike shop/community youth program with the goal of providing affordable bikes and repairs for the ‘greater DC cycling community’.

Phoenix Bikes

I stopped by yesterday morning and the small shop was packed with bikes and people. Most of the people were inside, so I suppose the above photo doesn’t really look ‘packed’. You’ll just have to trust me. Anyway, this was impressive considering it was about 15°f outside. Even the Potomac was frozen. Phoenix received a nice Schwinn hybrid and box of tires, tubes, a seat post, derailleur, and probably some other stuff I already forgot about, and I was able to clear out some valuable space in my basement. If you look closely at the photo below you’ll see the Washington Monument in the upper left above the frozen Potomac:

Frozen Potomac

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