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by Nirav Patel

Last Build Date: Sun, 04 Mar 2018 07:23:42 +0000


Snow Globe Redux: Gakken Worldeye Projector Upgrade

Sun, 04 Mar 2018 07:23:42 +0000

A few month hiatus from this blog turned into five and a half years, but that is a much longer story.  This one is about the state of desktop spherical displays in 2018.  In 2011, I hacked together the Snow Globe spherical display from a laser pico-projector, an off the shelf fish-eye lens, a bathroom …

This is why you won’t hear from me for months

Thu, 04 Oct 2012 02:39:23 +0000

This is why you haven’t heard from me in months

Sun, 05 Aug 2012 19:26:00 +0000

Snow Globe and the Adjacent Reality Tracker

Mon, 07 May 2012 16:40:00 +0000

// I’ll have more detailed posts about the Adjacent Reality Tracker in the future, but here is a preview of some of what you can expect to see at our booth in Fiesta Hall at the Bay Area Maker Faire on May 19th-20th this year.  In the meantime, you can follow Donnie and I working …

Blinded by the Light: DIY Retinal Projection

Sun, 08 Apr 2012 19:50:30 +0000

After grabbing a couple of Microvision SHOWWX laser picoprojectors when they went up on Woot a few months back, I started looking for ways to use them.  Microvision started out of a project at the University of Washington HITLab in 1994 to develop laser based virtual retinal displays.  That is, a display that projects an …

Reverse Engineering the Lytro .LFP File Format

Sun, 04 Mar 2012 08:53:43 +0000

After getting my Lytro camera yesterday, I set about answering the questions about the light field capture format I had from the last time around.  Lytro may be focusing (pun absolutely intended) on the Facebook using crowd with their camera and software, but their file format suggests they don’t mind nerds like us poking around.  …

Coming Soon to a Reality Near You

Tue, 07 Feb 2012 06:31:30 +0000

3D Printed Solder Fume Extractor

Mon, 06 Feb 2012 00:24:39 +0000

I’m going to be doing a lot of soldering in the near future, so for the sake of my respiratory system, I figured it would be useful to have a fume extractor.  I already had a fan, and air filters are cheap, so I printed out a frame to interface the two.  The full writeup …

Semi-Automatic Paintbrush

Mon, 19 Dec 2011 07:48:50 +0000

I bought an InkShield from the Kickstarter a few months ago mostly out of a desire to support an interesting Open Hardware project.  It wasn’t until yesterday that I thought of something useful to do with it.  Instead of that, I made this project, called the Semi-Automatic Paintbrush.  Using an infrared camera, an InkShield, an …

Augmented Reality for 3D Printing

Mon, 31 Oct 2011 05:51:35 +0000

My roommate’s struggles designing his first 3D printed part gave me the idea to write an augmented reality viewer that lets you preview and interact with STL models in the real world without having to commit an object to plastic. This is actually sort of an update on part of a project I did for …