Archive for the 'All' Category

Simple high speed motor

Saturday, June 4th, 2011

This is a quick motor I made using a single phase brushless motor controller IC (AH5798-yg) a coil of wire (100 turns of 38 awg)  and a magnetic sphere (Neodymium Iron Boron, N42). Based on the sound (via my FFT app on my iphone)  it is spinning at either 74400 or 37200 rpm.

Solid state retrofit

Saturday, June 4th, 2011

For my senior design II project I designed a LED light fixture to replace the standard fluorescent ones in the campus apartments.  This is my final report.

LED retrofit fixture Final report

16 Cree Mx6 leds on heat spreader

LEDs! and some other projects

Monday, December 20th, 2010

I would recommend checking out my flickr page for more of my projects (I’m a little busy right now). But I have been making some custom PCBs, playing with some interactive video, and dabbling in ultracapacitors.

1.5A buck board and cree xp-g led

400+ lumen Cree xp-g flashlight 2.1A 25V boost converter 25 V 260 Farad cap bank Reactivision +quartz Touch screen with a projector Feedback with thresholding and gain

Bubbles Display

Saturday, October 9th, 2010

This bubble display uses glycerine and air to produce pattens and text.  This version is 8 pixels wide.  The concept can be scaled up in a modular fashion to enable large installations (ie an entire wall in a restaurant or bar, or a free standing divider in a lobby or office).  Control is implemented using an arduino micro controller board. Future additions will include a streaming interface (to upload text and commands on the fly), and a more refined modular design.  This prototype is on display at Momentum Tulsa 2010.

Bubbles

Peggy 2le

Friday, September 10th, 2010

Peggy 2le

Blank Peggy 2le board Drivers all populated soldering 625 leds, the easy way Demonstration of uv cure cycle They all light up! Game of life Peggy+Arduino+Mac Another visualizer Another audio visualizer on peggy Streaming RSS feeds to Peggy

This is a Peggy 2le Kit that I assembled from www.evilmadscience.com/. It is a 25×25 LED matrix that is based around an Atmel ATMEGA328  and programable through the arduino environment.  I have written some software for it as an exercise to get back into programing.  Check out the videos of the Peggy lighting up its 625 LEDs!

It has been a while…

Thursday, September 9th, 2010

Actually it has been a really long time since I posted last.  Expect to see a bunch of updates and some post format changes soon! I have some exciting projects, some pictures of nice cars I have gotten to work on, and some pictures of the house I am living in.

Augmented reality, Multitouch, Qr codes, and concrete

Saturday, December 5th, 2009

AR and projects 

I have been working on some Augmented Reality projects for a museum tour giving robot recently.  I came up with an idea to make Black on Black retroflective vinyl decals for navigation.  These have the advantage of being visually unobtrusive in a museum environment.   They seem to work pretty well too, when using an IR camera with IR illumination they are by far the brightest things in the room (to the camera at least).

 I also think that for people placing qr codes near art pieces could greatly enhance the museum going experience.  Imagine being able to access a wealth of information about a painting and the artist while standing infront of the art piece far beyond the standard caption placed next to a painting.  Using a web enabled mobile telephone and Qr codes you could also find out information about other paintings you might like in the museum.  I think QR codes have a lot of promise for the museum environment.

Another project has been making a Multi touch display.  This could be used in conjunction with a mobile phone and qr codes to setup self guided tours in the museum or for taking a closer look at art pieces.

A few things from the last couple months

Sunday, October 18th, 2009

Aug-Sept 09 

I have been very busy with school and work, but here are some of the projects I have been working on.  I will post some things on the multi touch and augmented reality stuff I have been working on soon.

Some recent projects.

Monday, August 3rd, 2009

July 09 projects So here are some projects I have been working on the last month or so.

Concrete Hexagon Speakers

5W white LED dissection

Hand Key duplicating

Titanium Anodizing

Vacuum System for Screen exposure unit

Replacing parts in expensive cars

Glass from the past

Monday, June 1st, 2009

Glass 

While unpacking some boxes I found some of my old glass work from around 2002.  I decided I should take some pictures. Here they are.

Honda!

Tuesday, May 26th, 2009

Fixed Honda! 

Look it is shiny again!  and now it looks better than ever with its body color trim pieces! It will also handle and stop better with its new rear disk brakes and some new suspension parts.

Just compare to the pictures from earlier posts to see the difference.

Home!

Tuesday, May 26th, 2009

The other jewlery 

I have been home for a couple weeks and I have been busy trying to get readjusted.  These are some pics of some of my jewelry that I had not taken pictures of.

Rambo Lambo

Sunday, May 3rd, 2009

lamborghini

I saw this Lamborghini LM002 while I was walking down the street….

Last ring

Sunday, May 3rd, 2009

Italy 26

 

It moves in any direction.  putting all the pieces together as tricky.

Art Show!

Thursday, April 23rd, 2009

Italy 25

My pieces in the SUF art show and some shots from around Florence.

Cinque Terra

Tuesday, April 14th, 2009

Italy 24

This last weekend I went to Cinque terra.  It was absolutely amazing!  We hiked between the 5 cities and enjoyed some sun on the beaches.  We stayed in Porto Venere which was nice because it was much quieter than the Cinque terra (mostly only italian tourists) but still very very beautiful and only a 30 min (beautiful) ferry ride away from the 5 cities.

The art show

Friday, April 10th, 2009

Italy 23

We had an art show at fuji studios.  I really liked some of the silkscreened fabric patterns that people had made.

Latest jewelry

Thursday, April 2nd, 2009

Italy 22

Silver Ampersand necklace with inlayed stone that I made.

Process:

  1. Cut ampersand out of 1 mm silver sheet (save the pieces that compose the negative space)
  2.  Solder rectangle and tiny negative space pieces to another 1 mm silver sheet.  (The surface tension of the solder wants to pull all of the pieces together which makes things difficult)
  3.  Solder sheet to another 1 mm sheet.  
  4.  Cut, file and sand to exact rectangular shape
  5.  File top with round file for tube to lay in.
  6.  Solder tube in groove on top.
  7.  Crush stones
  8.  Apply  glue and place stone fragments in one at a time like a puzzle.
  9.  Wait 12 hours for glue to dry
  10.  Sand stones to level of metal, go back and fill holes
  11.  Sand and polish
  12.  Mask stones with tape
  13.  Sandblast then remove tape.

Oh, and there a lot of intermediate steps (like pickling for 10 min after every soldering). But I managed to do it all this week (about 12 hours). 

During the waiting parts I made a married metal button as a practice piece before I move on to silver.

Trip to Venice

Monday, March 30th, 2009

Italy 21

And a couple other places.

My honda

Monday, March 30th, 2009

My Honda

Here are some shots of my honda civic that I have done some work on.  It is still a work in progress, but it already goes pretty quickly (250 hp in a 2000 lb car).  I built the engine and did lots of calculations for sizing everything (many spreadsheets and many hours welding and fitting). I am currently having the body fixed and I will be setting up the data acquisition system when I get back to the states.  (Parts I did not do myself, roll cage, new downpipe and exhaust, seat mounting, installation of the sleeves)