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Features

• Vernier Scale Offers a Resolution of 10 arcmin
• 360° Continuous Motion Provided by Fine Pitch Worm Gear
• Backlash Free
• Application Tested to 25 lbs Vertical Load
• Designed for Mounting MS1 and T12 Series Translation Stages (Using the CR1A Adapter Plate)
• Compatible with PM3/PM4 Prism Mounting Hardware (See Below)

The CR1 rotation stage includes a fine pitch worm gear that provides high precision and backlash-free rotation achieved by the worm gear driven design. Rotation is actuated via a polished stainless steel adjuster knob located on the side of the unit. The rotating platform contains an array of 8-32 (M4), 6-32, and 4-40 tapped holes for general mounting requirements. Two radially shaped 1/4" (M6) slots machined in the base provide flexibility when fastening to an optical table.

The easy-to-read radial scale is marked in 2º increments and labeled every 10º. A side-located vernier scale improves resolution to 10 arcmin. The added ability to stack some of our translation stages on the rotation platform, and its 25 lbs capacity, make this stage useful in any laboratory.

Smart Pack

• Minimize CO₂ Footprint
• Reduce Non-Recyclable Packing Materials
• Improve Packaging Integrity
• Saves on Shipping Costs

Thorlabs' Green Initiative is aimed at reducing waste. To that end, we have begun to re-engineer our product packaging. The CR1 is now shipped in re-engineered packaging that minimizes the use of non-recyclable materials.

Over the course of a year, the re-engineered packaging across our product line is projected to reduce our CO₂ footprint by more than 16,184 kg and reduce packaging by over 13,893 pounds! As we move through our product line, we will label re-engineered packages with our green Smart Pack sticker (above).

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The CR1A adapter can be used to secure select Thorlabs mounts to the CR1 Rotation stage. The adpater is equipped with four 6-32 taps, one 1/4"-20 tap, six 4-40 taps, eight 2-56 taps, and four #6 (M4) clearance holes. The following table lists mounts that may be secured to the the CR1.

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Features

• Provides Clamping Force for Our Prism Mounts and V-Clamps
• Stackable 6-32 (M4) Threads on Top and Bottom of Post

Thorlabs' PM3(/M) and PM4(/M) clamping arms feature a cap screw-activated flexure mechanism to secure the clamping arm to the post, while a nylon-tipped setscrew secures the optic. A Ø0.09" (Ø2.3 mm) hole located near the top of the post allows for its initial tightening with a 5/64" (2 mm) balldriver or hex key. Both screws feature a 5/64" (2 mm) socket. The PM3(/M) arm offers 0.97" (24.6 mm) of vertical travel, while the PM4(/M) arm offers 1.61" (40.9 mm) of vertical travel.