Patent ID: 7471030

Claim:
A step and repeat motor apparatus, comprising: a base having a channel defined therein; an output member received in the channel and moveable along the channel; at least one translator drive element associated with the output member and arranged to drive the output member along the channel; first and second clamping elements associated with the output member and arranged to clamp a portion of the output member in place within the channel, at least one of the first and second clamping elements including an active clamping drive element; a locking structure; a hinge connecting the locking structure to the base, the hinge having a hinge axis, the first and second clamping elements being received between the locking structure and the channel so that extension of either one of the clamping elements pivots the locking structure about the hinge axis and away from the other of the clamping elements and away from the channel; and a spring biasing the locking structure toward the channel.