Patent Document ID: 9726267
Application ID: 14446079

Base Claim:
1. A relative translation system, comprising: a relative translation assembly, having a fixed support member, a translatable member supported by the fixed support member, and a translation guide portion to facilitate translation of the translatable member relative to the fixed support member, the translation guide portion having a fixed translation member and a movable translation member, the movable translation member fixedly coupled to a swing arm, the swing arm rotatably coupled to the fixed support member to provide a rotation of the movable translation member about an axis, the fixed translation member and the movable translation member operate together to constrain movement of the translatable member in a translational degree of freedom, wherein, the movable translation member is configured to maintain preload on the fixed and movable translation members and accommodate thermal expansion; and a drive mechanism configured to cause translation of the translatable member relative to the fixed support member.

---

Claim 2:
2. The system of claim 1 , wherein the drive mechanism comprises: a drive shaft having a threaded portion; a first bearing to facilitate rotation of the drive shaft, the bearing being configured to support the drive shaft and interface with the fixed support member; and a drive member engaged with the threaded portion of the drive shaft and configured to be fixed to the translatable member to facilitate translation relative to the threaded portion upon rotation of the drive shaft, wherein an angle of misalignment of the bearing compensates for drive shaft rotational misalignment, and wherein a position of the drive member is adjustable upon assembly to compensate for drive axis translational misalignment.