Mark Rehorst's Tech Topics

I recently experienced a couple failures and almost failures that might be interesting to people who build 3D printers. The first one was ...

After the MakerFaire I looked at the sand table mechanism and found one problem.  The magnet carriage was tilted badly because the spring un...

More stuff moved over from my old web site.... Just in time for Halloween! In 2007, when I was in dental school, I had a cone beam CT sca...

In early 2005 I was visiting family in Milwaukee and saw a handbill taped to a light pole on North Ave advertising a psychedelic band that w...

When I lived in Dallas and later, Missouri, there were a LOT of interesting bugs.  I outfitted my 3 MP camera with a closeup lens and flash ...

In 2005 I designed and built a carbon fiber bike in my garage in Missouri.  The stuff that follows is content moved over here from my old we...