I wrote several blog posts about Oculus Medium’s Move Tool that are hosted on the Oculus Developer Blog:

Developing the Move Tool

Move Tool Implementation Details

Move Tool and Asynchronous Operations

I also wrote this blog post which is a detailed explanation of the mesh deformation that is guided by the 6DoF controllers:

Mesh Deformation with the Move Tool

There is also sample code that was released by Facebook/Oculus under the BSD license, which you can find at:

Sculpting And Simulations Sample

Here’s a video of the volume-preserving elastic move tool: