If you need a rotational MPC, you will need some special approach.
* First joice is a bond to a rigid body. But this is at the moment not available, so we need a feature request in this regard.
* Second choice is you needs to imitate rigid body by a dummy.
This dummy need a significant higher young modulus and a cylindrical face.
A translational displacement needs to be defined first, which is transformed to a cylindrical coordinate system in a pending step.
So X-axis will be translated to radial displacement,
Y-axis will be translated to tangential displacement and Z-axis remains as cylinder's axis.
This will lead to this result:

- rotational displacement.png (170.23 KiB) Viewed 1316 times
File:
Done with:
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.11792 (Git)
Build type: Release
Branch: master
Hash: 7aec98ffb66065854a66d6d6715845fdbf0869a7
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.1.0
Locale: German/Germany (de_DE)