net.sf.openrocket.gui.main.SwingExceptionHandler$InternalException: An exception occurred during the simulation at net.sf.openrocket.gui.main.SwingExceptionHandler ...

Opened a series of nice models where I expected to find decals in place, and they rendered with (apparently) none. Neil W, creator of the models, had applied and viewed the decals in OR on his Apple ...

A lot of the software packages I've covered in recent articles have been focused strictly on doing computations on your machine, separate from the real world. So in this article, I explore how to use ...