I attempted a screw mate this morning and it doesn't seem to behave as desired. The help says, "A Screw mate constrains two components to be concentric, and also adds a pitch relationship between the rotation of one component and the translation of the other. Translation of one component along the axis causes rotation of the other component according to the pitch relationship. Likewise, rotation of one component causes translation of the other component." I want the component that is turning to also do the translating. A literal reading of the help suggests that the rotating and translating components have to be different. This would rule out screws being turned into a tapped hole. Can anyone shed light on this peculiarly restricted usage? I also want the screw mate to start in a particular location and position. Seems to have a mind of its own on this. TOP