Joe's Makerbot is now Joe's 3D Workbench. http://joes3dworkbench.blogspot.com/
This has been a long time coming. I avoided it for many technical reasons, but I now feel it's time.
Joe's Makerbot (this blog) will remain with it's history and posts, but I will no longer be updating it. From now on all posts related to making, designing, and teaching will be on Joes3dWorkbench.blogspot.com. I hope you'll all visit me there. I will also occasionally post my more editorial thoughts on 3DHacker.com's blog.