Wednesday, July 20, 2005

Solar Guitar update (new vid) 7/20/05

More work accomplished this week! I added picks to 2 more of the pager motors so I have a total of 3 now. I think that is enough for a proof of concept protoype. The electrical tape on the ends of the picks is definitly the way to go. The solar engines just doesn't have enough kick to get the pick past the string. Also if I put a bigger capacitor (10000mf or bigger) in the engine and adjust the motor so the tape just barely nicks the string, the motor spins longer and creates a nice droney effect.

Here are the prototype motors with picks added. No E-tape yet...



I built a mockup of a the motor mount as well. It goes over the very last frets on the neck. This one is adjustable at all four corners, but I hope that the final mount will have individual motor adjustments. Since the "picks" will be hand made, they won't be exactly the same length which necessitates the individual adjustability. Right now the mount is attached to the guitar with velcro which makes for a very wobbly and imprecise mount.


Here is a shot of the motor mount on the guitar with the 3 motors on it.



Here is a short video of one of the motors firing. It is hooked up to a breadboarded 1381 solar engine.

Friday, July 15, 2005

Art of Science Competition / Gallery


Art of Science Competition / Gallery Some very cool pieces of art all with scientific origins.

Thursday, July 14, 2005

Solar Guitar Update 7/14/05


I got a bit of work done this week on the solar guitar. I breadboarded up a 1381 solar engine to drive a pager motor. I cut a guitar pick down to size and epoxied it to the head of the pager motor. After realizing that even a thin guitar pick was bit too stiff for this application, I added a tab of electrical tape to the end of the pick to make a more flexible "picking" surface. The motor doesn't have much kick and the pick alone would sometimes get stuck on the string. The picture at right shows the results.

Also, here is a short video of the motor in action, actually picking a string.

I also had a bit of a revalation about how to possibly introduce a melodic component. I have always been thinking in terms of fretting notes, but then it dawned on my that harmonics might be an easier way to accomplish it. Fretting would require some significant pressure on the string which I am not sure a solar engine could accomodate. Harmonics would only requre moderate pressure on a suspended string. I will have to do some experimenting with that.

Wednesday, July 13, 2005

Spirograph Robot


robotlab - art | installation | research Pair of spirograph robots commisioned by huge European industrial robot maker KUKA. The robot will sign the picture when it is done. cool.

Friday, July 08, 2005

Real Wood iPod by ZapWizard

bit-tech.net | Real Wood iPod by ZapWizardCoolest I-pod mod ever!

LEMUR: League of Electronic Musical Urban Robots

LEMUR: League of Electronic Musical Urban RobotsA very interesting collective of musicians, artists and technologists based in Brooklyn, NY who create robotic musical instruments.

Thursday, July 07, 2005

New Project - Interactive Solar Guitar

Project Title: Interactive Solar Guitar


Requirments:
-Entirely solar powered
-Self-contained (setup may include guitar case)
-Will play autonomously given enough power (light)
-Will allow for interaction via flashlight "batons"
-Some way to adjust pitch or fret string on at least one string to approximate melodic component
-Drone ability
-Guitar should still be able to fit into case for transportation


Assumptions:
-Guitar will be a standard acoustic guitar
-An open tuning will be used
-Aesthetics of guitar should be minimally impacted by robotic additions (except maybe the solar panels, which
look cool)
-Use Beam style
solar engines to power pager motors in order to accomplish picking


This should be a fun one. I have always wanted to make a musical device that uses some of the principles of BEAM Robotics. I will use an factory reject acoustic guitar that I was able to aquire. You can see in the picture that it has some writing on the body. It says "D-form... bad neck angle", but I don't think the neck angle is going to make a whole lot of difference to me in this application. I am just getting started with experimenting with which solar engines, motors and panels to use. I will post updates as my expermenting, planning and building continue.

Rhapsody music service review

So I have been using the Rhapsody music service from Real Networks for about a week now. I downloaded the free 14 day trial and figured, "what have I got to lose". I must say I am pretty impressed with the functionality of the service as well as the variety of music available. For those who aren't hip to Rhapsody, it is a subscription music service. You pay a monthly fee for access to Rhapsody's entire library of streaming music. The system uses Windows WMA files and the Microsoft DRM (Digital Rights Management) system to keep everything properly licensed, etc. In addition to listening to the music via the streaming method, you can also choose to download it to your "Music Library". Once downloaded the files are listenable from your local computer. Rights are refreshed every time that you use the Rhapsody player so as long as you open the player at least once every 30 days, you are good to go. The files can also be transferred onto a portable MP3 player with a similar need to refresh rights occasionally. If you want to buy the files outright you can opt to do that as well, this allows you to burn them to CD, move them to other computers, etc.

The player itself is fairly intuitive. In the lower left corner is the now playing list as well as tabs for burning to CD and transferring to a portable player. There is a Music Guide in which you can search for different artists, albums, tracks, etc. Throughout the player there are links in the track names, artist names, etc that will link you back to the music library. Say you are looking through your music library and realize that you only have one Van Morrison album (god forbid). Just click on the artist name in the library and it will link you to the Van Morrison page in the guide. Pretty slick.

One very cool feature is the ability to create playlists and then publish them for other people to listen to. Since the service is subscription based and streaming, everyone has access to the same library, which is what makes playlist sharing possible. I have seen some wierdness in creating a playlist where the playlist will spontaneously copy its list into itself, but it may just be user error. I am still working on my first soon-to-be published playlist called "Gutbucket Soul".

Right now, I am about half way through my trial period and I am definitely leaning towards continuing the subscription. I absolutely love finding new music, but hate paying $18 for a CD and then finding out that only 1 or 2 songs are worth a poop. Rhapsody seems to provide a very economical and easy way to get access to a huge library of music. Of course the downside is that you need to keep up your subscription in order to ensure access to your files, but for only 9.99 a month for the top of the line Rhapsody To Go service, I think its worth it.

Here goes...

I love technology. I love music. I hope to use this blog to share my love of both with links to fun stories about technology, music reviews, updates about personal projects of interest, etc. So... lets go!