How to build a deformable rigid?

[josemendez]

Hi, Josemendaz,

Thanks for your quick reply. I have encountered another problem, and I am really confused about it. 
I set the ball and barrel with plastic yield 0.2, and build a hand model to grasp them. however, when I start the simulation, the ball and barrel immediately shrank, as the attached video shows.
I don't know how to fix this problem. Could you help me?

kind regards,
Fei

Hi,

That means the plastic yield is too large, and the softbodies just crumple under their own weight.

Either spend more substeps on the simulation to make the softbodies more rigid, or reduce the plastic yield.

kind regards,