5-Axis Kinematic Mount for 30 mm Cage Systems

- Five Axes (Pitch, Yaw, and XYZ) of Adjustment
- Mount Ø1" Optics or SM1-Threaded (1.035"-40) Components
- 30 mm Cage System Compatible
Application Idea
KC5X1 Kinematic Mount in a Cage System with a Ø1/2" Post
Cage Locking Screws
X Adjuster
Integrated Thumb Wheel for Angular Adjustment (3 Places)
Engraved Crosshairs for X/Y Movement
SM1 Thread
KC5X1
5-Axis Kinematic Optic Mount
Y Adjuster

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Table 1.1 Specifications | |
---|---|
Item # | KC5X1(/M) |
Optic Diameter | 1" |
Optic Thickness | 0.38" (9.5 mm) Max |
Clear Aperture | 0.90" (22.9 mm) |
Optic Cell Threading | SM1 (1.035"-40) |
Pitch/Yaw Adjustment (Resolution) | ±3° (6.2 mrad/rev) |
X/Y Adjustment (Resolution)a | ±1.0 mm (254 µm/rev) |
Z Adjustment (Resolution)b | ±3.0 mm (318 µm/rev) |
Included Retaining Ring | SM1RRc |
Post Mounting | Two 8-32 Holes (Two M4 x 0.7 Holes) |
Dimensions | 2.69" x 2.69" x 1.57" (68.2 mm x 68.2 mm x 39.9 mm) |
Weight | 0.38 kg (0.83 lbs) |
Features
- Internally SM1 Threaded for Mounting Ø1" Optics
- Pitch, Yaw, and XYZ Adjustment
- Compatible with Our 30 mm Cage System
- Two 8-32 (M4 x 0.7) Mounting Holes at 90° for Post Mounting
- Compact Size: 2.69" x 2.69" x 1.57" (68.2 mm x 68.2 mm x 39.9 mm)
The KC5X1(/M) 5-Axis Cage-Compatible Kinematic Optic Mount has an optic cell that can be adjusted along 5 axes (pitch, yaw, and XYZ). The optic cell has an internally SM1-threaded mounting hole that accepts Ø1" optics up to 0.38" (9.5 mm) thick; the optic can be secured using the included SM1RR retaining ring, which can be tightened using an SPW602, SPW606, or SPW801 Spanner Wrench. Thicker optics can be accommodated by housing the optic in one of our SM1 Series Lens Tubes and then threading the lens tube into the front plate of the mount. The front plate also features engraved vertical and horizontal lines to use as an alignment aid for the optic cell.

Click to Enlarge Figure 1.2 Adjusting the KC5X1 Mount in a Cage System Using a 564HK Hex Key

Click to Enlarge Figure 1.3 Adjusting the KC5X1 Mount Using a HKTS-5/64 Hex Key Thumbscrew
Angular and z-axis adjustment are controlled by three 1/4"-80 screws, which can be locked using F25SC1 locking collars (sold separately). X and Y axis adjustment is controlled by two 3/16"-100 screws, which can be locked using F19SC1 locking collars (sold separately). All five adjuster screws can be actuated with a 5/64" (2 mm) hex key or ball driver (not included). Additionally, the three screws for angular and z-axis adjustment have knobs, located between the front and back plates of the mount, that can be turned manually or with a 5/64" (2 mm) hex key inserted into one of 6 holes on the edge of each knob, as shown in Figure 1.2.
Two orthogonal 8-32 (M4 x 0.7) mounting holes allow the mount to be post mounted in a right- or left-handed orientation. The mount also has four clearance holes to accommodate Ø6 mm ER cage rods for compatibility with our 30 mm cage systems. Once the desired position in the cage system is achieved, 5/64" (2 mm) hex locking setscrews on the rear plate can be used to secure the rods in place.
We also offer post-mountable 5-axis kinematic mounts for other optic sizes, as well as 6-axis kinematic mounts mounts that provide pitch, yaw, XYZ, and rotational adjustment.
Cage System Overview
The Cage Assembly System provides a convenient way to construct large optomechanical systems with an established line of precision-machined building blocks designed for high flexibility and accurate alignment.
16 mm, 30 mm, and 60 mm Cage System Standards
Thorlabs offers three standards defined by the center-to-center spacing of the cage assembly rods (see Figure 14A). The 16 mm cage, 30 mm cage, and 60 mm cage standards are designed to accommodate Ø1/2", Ø1", and Ø2" optics, respectively. Specialized cage plates that allow smaller optics to be directly inserted into our larger cage systems are also available.
Standard Threads
The flexibility of our Cage Assembly System stems from well-defined mounting and thread standards designed to directly interface with a wide range of specialized products. The three most prevalent thread standards are our SM05 Series (0.535"-40 thread), SM1 Series (1.035"-40 thread), and SM2 Series (2.035"-40 thread), all of which were defined to house the industry's most common optic sizes. Essential building blocks, such as our popular lens tubes, directly interface to these standards.

Figure 14A An example of the standard cage plate measurements determining cage system compatibility.
Standard Cage System Measurements | |||
---|---|---|---|
Cage System | 16 mm | 30 mm | 60 mm |
Thread Series | SM05 | SM1 | SM2 |
Rod to Rod Spacing | 16 mm (0.63") | 30 mm (1.18") | 60 mm (2.36") |
Total Length | 25 mm (0.98") | 41 mm (1.60") | 71.1 mm (2.80") |
Cage Components | ||
---|---|---|
Cage Rods | 16 mm | These rods are used to connect cage plates, optic mounts, and other components in the cage system. The SR Series Cage Rods are compatible with our 16 mm cage systems, while the 30 mm and 60 mm cage systems use ER Series Cage Rods. |
30 mm | ||
60 mm | ||
Cage Plates | 16 mm | These serve as the basic building blocks for a cage system. They may have SM-threaded central bores, smooth bores sized for industry standard optics or to accommodate the outer profile of our SM Series Lens Tubes, or specialized bores for other components such as our FiberPorts. |
30 mm | ||
60 mm | ||
Optic Mounts | 16 mm | Thorlabs offers fixed, kinematic, rotation, and translation mounts specifically designed for our Cage Systems. |
30 mm | ||
60 mm | ||
Cage Cubes | 16 mm | These cubes are useful for housing larger optical components, such as prisms or mirrors, or optics that need to sit at an angle to the beam path, such as beamsplitters. Our cage cubes are available empty or with pre-mounted optics. |
30 mm | ||
60 mm | ||
Replacement Setscrews | Replacement setscrews are offered for our 16 mm (SS4B013, SS4B025, and SS4B038) and 30 mm (SS4MS5 and SS4MS4) cage systems products. | |
Post and Breadboard Mounts and Adapters | Mounting options for cage systems can be found on our Cage System Construction pages. Cage Systems can be mounted either parallel or perpendicular to the table surface. | |
Size Adapters | Cage System Size Adapters can be used to integrate components from different cage system and threading standards. | |
Specialized Components | Thorlabs also produces specialized cage components, such as Filter Wheels, a HeNe Laser Mount, and a FiberPort Cage Plate Adapter, allowing a wide range of our products to be integrated into cage-mounted optical systems. Explore our Cage Systems Visual Navigation Guide to see the full range of Thorlabs' cage components. |
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