6-Axis Kinematic Mounts
Click to Enlarge
The K6XS Features X-Y Translators and Kinematic Pitch/Yaw/Z Adjusters
The K6XS 6-Axis Kinematic Optic Mount is designed as a general-purpose, high-precision positioner. The optic cell can be translated along 6 axes, and each axis has a locking screw for stability. The translating cell has SM1 (1.035"-40) threading for attaching Ø1" lens tubes or mounting Ø1" (25 mm) optics up to 0.55" (14 mm) thick using the included SM1RR Retaining Ring, which can be tightened using an SPW602 or SPW606 Spanner Wrench (sold separately). The rotating dial has tapped 4-40 holes for attaching the K6A1 (sold separately below).
In testing, the K6XS was shown to drift less than 15 µrad in 48 hours at typical environmental conditions, with a 2 °C temperature fluctuation. The X and Y axes cause less than ±10 µm of crosstalk when translated over their full range.
The K6A1 (K6A1/M) is a 0.5" x 1.68" (12.7 mm x 42.7 mm) platform designed to be mounted on the rotation ring on the K6XS 6-axis kinematic mount and our 30 mm cage-compatible rotation mounts. The platform is mounted using the included 4-40 screws (hex key included). The platform has an adjustment range of 1/4" (6 mm) so that the optic placed on the platform can be positioned on the axis of rotation. The platform has four 6-32 (M4) tapped holes on the corners that can be used to mount, among other things, the included PM3 (PM3/M) prism clamping arm.
Thorlabs' PM3(/M) and PM4(/M) Clamping Arms use a nylon-tipped setscrew to secure objects in our mounts and V-clamps. The PM3(/M) provides vertical travel of up to 0.97" (24.6 mm) and features a 0.69" (17.5 mm) long clamping arm. In contrast, the PM4(/M) provides vertical travel of up to 1.61" (40.9 mm) and features a 1.16" (29.3 mm) long clamping arm.
The clamping arm is held to the post using a flexure mechanism that locks with a 5/64" (2 mm) balldriver or hex key. The post includes a Ø0.09" (Ø2.3 mm) through hole that provides added torque when tightening down the post.
The PM3(/M) clamping arm can be used to hold 1" (25.4 mm) tall optics with the addition of a second post. Without the second post, the top surface of the clamping arm will be positioned above the top of the post, causing less-than-full engagement of the flexure mechanism.