Spinning T-Handle

Just posted a new video to Youtube showing some of the new features in an upcoming MOMDYN update. Here I show combining a rigid cylinder and box to create a body similar to the T-handle from a famous video taken on the space station. Basically shows if you take a T shaped object and rotate it about its center axis, it is unstable. This is especially apparent in the zero gravity setting.

Video linked below. I'll have the beta app update in the next few days with the new cylinder and cone bodies, and some aesthetic updates (few last kinks to work out). 

Feature Showcase - Free Motion Joint

In today's episode I demonstrate how to use MOMDYN to create a free motion joint, sometimes called a 6-degree-of-freedom (6-DOF) joint. This represents the motion of an object (any object) as it moves freely through the air; say, for example, my iPhone when I throw it across the room.

That is exactly what I did in a video that I created to demonstrate the new feature, which is embedded after the jump. I also plot some of the data in a notebook that can be accessed in Google Colaboratory. I hope you will be interested in experimenting in that notebook, and maybe recreating some of it yourself (just make sure your phone lands on a soft spot). 

For more information on how to implement the new feature in your own model, keep reading.