Hello all. I am trying to build an assembly and setting by mates. I have set some limits as to where certian linkages allow a specified amount of movement in degrees. I have the mates set and working for a while and when I start grabbing parts to move the linkages, I will lose movement of the parts when I reach a limit. I cannot move them until I rebuild them and then all the mates poop out and scatter parts where they should not be. Any one have any suggestions?