Wednesday, July 30, 2014


New hand railing by Robert Abdallah.

Friday, June 27, 2014

Recent 3d prints

Here are a variety of recent 3D prints.  All algorithmic generated.  All use openscad as the renderer.  Some use solidpython that exports to openscad.  Printed on my Makerbot 2

Monday, May 5, 2014

Introduction to Linear Algebra


I just finished a Colorful Introduction to Linear Algebra. I wrote it because I thought that most textbooks do a poor job of introducing such an important subject.  Please let me know if you find this useful.