Carl Rosendahl

Educator, Entrepreneur, Pixelgeek

My first career was founding and building Pacific Data Images (which became PDI/DreamWorks) – it was an incredible experience.

Since then I’ve been a Venture Capitalist, serial entrepreneur, mentor and I am now an Associate Professor at Carnegie Mellon’s Entertainment Technology Center and Director of the Silicon Valley satellite campus.

I take pictures, play music and program for fun – sometimes combining all those together.

I’m an active Maker, here are some samples of recent projects I’ve done.


I had to build a workbench before I could build our garage cabinets. I love [...]

Garage Cabinets

This was my first time building real cabinets. I designed them as a custom fit [...]

Garage Work Stool

We had one of these when I was growing up. It was built by the [...]


I built these bookshelves for my office/music room. There are three of them screwed together [...]

Marshall Picture Frame

In 2005 I met Jim Marshall at the NAMM show and got a signed poster [...]

Monitor Backlight

I published my second Instructable last week, about how to build a simple backlight for [...]



A fully functioning electric guitar built out of Lego. I must’ve been nuts to decide [...]


Made from an outdoor walkway lamp. A piece of pipe and a flange painted black [...]

Camera Intervalometer

I didn’t want to spent over $100 for a professional intervalometer for my camera to [...]

Black Box Lightshow


Based on an original design that I built in college, this is an LED lightshow [...]

Lifeguard Chair

The chair was built from redwood that I recycled from a deck that we tore [...]

Welded Creatures

These were created in a welding class at The Crucible. The moose lives in our garden [...]

I’ve done a few projects that last about a year and are focused on developing a new skill. A couple of them have been blogged actively.

100 Loaves of Bread

In 2012 I learned how to bake bread. When I first decided on the project, [...]

A Picture a Day

In July of 2007 I started a year long picture-a-day project. My goal was to [...]