Mechanical Component Bases

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A TRB1 Locking Ball and Socket Mount is threaded onto a BE2 Base, which is secured by a CF125 Clamping Fork.

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The BE1R has a magnet in the base for stability in temporary setups.

• Mount 1/4"-30 (M6) or 8-32 (M4) Tapped Components in an Arbitrary Position 0.19" (4.7 mm) Above the Breadboard
• Clamping Fork or CL8 Table Clamp Secures Base to a Breadboard or Table
• 1/8" (3 mm) Hex Socket on Bottom for Tightening (Click the Zoom Link to the Left for Photograph)
• Machined Bottom Relief Cut for Added Stability

The BE1(/M), BE1R(/M), and BE2(/M) Studded Bases allow 1/4"-20 (M6) or 8-32 (M4) tapped optomechanical components to be mounted in an arbitrary position 0.19" (4.7 mm) above the breadboard. The BE1R(/M) adapters additionally have a magnet in the base that is sufficiently strong to securely hold the base in place without clamping to an optical table. These bases are Ø1.25" (Ø31.8 mm) and feature a 1/8" (3 mm) hex socket on the bottom for tightening.

To secure the base, a clamping fork (shown in the photo to the right) or a CL8 table clamp can be used. The BE1(/M) base adapter is available in a pack of five for ease of ordering.

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View Imperial Product List

Item #	Qty	Description
Imperial Product List
POLARIS-K05F6	1	Polaris® Low Distortion Ø1/2" Mirror Mount, 3 Hex Adjusters with Lock Nuts
BE2T	1	Tapped Mechanical Component Base, 8-32 Thread
CL8	2	Ø1" and Ø1.5" Pedestal Post Table Clamp
SH25S063	1	1/4"-20 Stainless Steel Cap Screw, 5/8" Long, 25 Pack
W25S050	1	1/4" Washer, M6 Compatible, Stainless Steel, 100 Pack
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Item #	Qty	Description
Metric Product List
POLARIS-K05F6	1	Polaris® Low Distortion Ø1/2" Mirror Mount, 3 Hex Adjusters with Lock Nuts
BE2T/M	1	Tapped Mechanical Component Base, M4 Thread
CL8	2	Ø1" and Ø1.5" Pedestal Post Table Clamp
SH6MS16	1	M6 x 1.0 Stainless Steel Cap Screw, 16 mm Long, 25 Pack
W25S050	1	1/4" Washer, M6 Compatible, Stainless Steel, 100 Pack
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A POLARIS-K05F6 Ø1/2" Mirror Mount is shown on a BE2T Base secured to the breadboard by two CL8 Table Clamps. Please note that a 3/8" (10 mm) long 8-32 (M4) low-profile cap screw is recommended for mounting the Polaris onto this base.

• Mount Counterbored Components in an Arbitrary Position 0.19" (4.7 mm) Above the Breadboard
• 8-32 (M4) and 1/4"-20 (M6) Tapped Versions Available
• CF125 or CF175 Clamping Fork or CL8 Table Clamp Secures Base to a Breadboard
• Machined Bottom Relief Cuts for Added Stability

The BE2T(/M) and BE1T(/M) Tapped Bases allow counterbored optomechanical components to be mounted in an arbitrary position 0.19" (4.7 mm) above the breadboard. The BE2T(/M) offers an 8-32 (M4) tap, while the BE1T(/M) has a 1/4"-20 (M6) tap. 

To secure these Ø1.25" (Ø31.8 mm) bases, a CF125 or CF175 clamping fork or a CL8 table clamp (shown in the photo to the right) can be used. However, using these items will restrict the width of the component being mounted to a maximum of 1". 

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View Imperial Product List

Item #	Qty	Description
SWB	1	Articulated Mounting Base, 1/4"-20 Threaded Stud, Qty. 1
CF125	1	Clamping Fork, 1.24" Counterbored Slot, Universal
MB6	1	Aluminum Breadboard 6" x 6" x 1/2", 1/4"-20 Taps
LVL01	1	1.25" Circular Bullseye Level
BMF4	1	Breadboard Mounting Feet (Imperial), Set of 4
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Item #	Qty	Description
SWB/M	1	Articulated Mounting Base, M6 x 1.0 Threaded Stud, Qty. 1
CF125	1	Clamping Fork, 1.24" Counterbored Slot, Universal
MB1515/M	1	Aluminum Breadboard, 150 mm x 150 mm x 12.7 mm, M6 Taps
LVL01	1	1.25" Circular Bullseye Level
BMF4/M	1	Breadboard Mounting Feet (Metric), Set of 4
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Mounting Base Being Used to Level and Secure an Optical Breadboard

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SWB Mounting Base with Locking
Nut Removed

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Cross Sectional View of
the SWB(/M) Base

• 0.66" Long, 1/4"-20 (M6) Threaded Mounting Stud
• CF125 or CF175 Clamping Fork (Sold Separately) Secures Base and Locks Swivel Joint 
• ±6° Swivel Compensates for Uneven Surfaces
• Locking Nut Included for Height Adjustments
• 1/8" (3 mm) Hex Socket on Bottom for Tightening
• Machined Bottom Relief Cut for Added Stability

Thorlabs' SWB(/M) Articulated Mounting Base can be used to stabilize and level a mounted component, such as a breadboard, or to correct for beam pointing errors. It features a 0.66" long, 1/4"-20 (M6) threaded mounting stud with ±6° of freedom in all directions to adjust for uneven work surfaces or compensate for angular misalignment. The base can be secured to an optical table or breadboard using a clamping fork, such as the CF125 or CF175, as shown in the photo to the right. Securing the base in place with a clamping fork will lock the articulated joint in position.

A Ø1" tapered locking nut is included for components requiring a larger support surface and provides 0.375" of vertical height adjustment. The tapered design prevents the locking nut from contacting a clamping fork when being secured in place. Additionally, torque holes that accept a 5/64" hex key are included in the lock nut and mounting stud to aid in securing a mounted component at a specific height. A 1/8" (3 mm) hex socket is also included on the bottom of the mounting base to actuate the threaded mounting stud. 

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An FW102C Motorized Filter Wheel is mounted on a PB4 Base, which is secured to the table with a CL8 Table Clamp.

• Mount 1/4"-20 (M6) Tapped Components in an Arbitrary Position 0.24" (6.1 mm) Above the Breadboard
• PF175 Clamping Fork or CL8 Table Clamp Secures Base to a Breadboard or Table
• 1/8" (3 mm) Hex Socket on Bottom for Tightening
• Machined Bottom Relief Cut for Added Stability

The PB4(/M) Studded Base allows 1/4"-20 (M6) tapped optomechanical components to be mounted in an arbitrary position 0.24" (6.1 mm) above the breadboard. This Ø1.85" (Ø47.0 mm) base has a 0.26" (6.6 mm) long, 1/4"-20 (M6) stud on the top and a 1/8" (3 mm) hex socket on the bottom for tightening.

To secure the base, a PF175 clamping fork or a CL8 table clamp (shown in the photo to the right) can be used. However, using these items will restrict the width of the component being mounted to a maximum of 1.5".