Arme, I think your joint setting are not set correctly. I try with some poser standard prop there are two joint settings see as a green cross (the center) and as a red cross the end. With the problem decription you provide it seems that you move only the green cross. Unfortunately you mut move both cross. The reason are: 1- Poser use the two cross for identify the rotation axe. 2- Only the vertices between the two cross are moved. You must put the green one on the ring and the red one at the end of the lower cross. Guy