I think that Yongzhi has left die this thread...
Anyway, in my experience, often moviments actuated "manually via mouse" could cause the break of the kinematic chain; whereas using the servo motors this doesn't happen.
I hope PTC increments the functionalities of Mechanism also with new features.
A better work with the contacts, like cams, and with the 3D contacts in particular, I think should be done.
