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Kinematic Bases


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Kinematic Bases

KBT1X1T Application
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The KBT1X1T (shown here with DG10-1500-H1-MD Diffuser and LMR1 Mount) is offered with four 8-32 tapped mounting holes for setscrews

Features

  • Insert and Remove Components with High Repeatability
  • Ball and V-Groove Design for Precise Alignment
  • Rare Earth Magnets Couple Top and Bottom Base Plates
  • Top and Bottom Plates Available Individually or as Complete Unit

Kinematic bases are an excellent method for mounting elements that need to be inserted and removed from the optical path with a high degree of repeatability. Our ball and V-groove design allows the top plate to be kinematically positioned on the base plate with a high degree of precision. The two plates of the kinematic base are held together using pairs of rare-earth magnets.

Selection Guide

Item #SizeAngular
Tolerance*
Description
KB1X1 (KB25/M)1" x 1" (25 mm x 25 mm)30 µradSquare Base with Central Mounting Hole
KB3X3 (KB75/M)3" x 3" (75 mm x 75 mm)N/A**Square Base with a Central 1/4"-20 (M6) Through Hole
and Nine 1/4"-20 (M6) Tapped Holes
SB1 (SB1/M)Ø1.7" (Ø43 mm)1 µradCircular Base with Central Mounting Hole and Lever
for Easy Removal
KBS98NAN/A**Mounting Seats for Repeatable, Precision
Breadboard Positioning
NXF1F (NXF1F/M)Ø1.3" (Ø33 mm)10 µradCircular Indexing (15 positions) Kinematic Base
with Central Mounting Hole
NX1 (NX1/M)Ø1.3" (Ø33 mm)10 µradCircular Indexing (15 positions) Kinematic Base
with Ø1" Optical Mount

*Repeatability of the positioning of the top plate of the kinematic base if it is removed and then replaced.
**Angular Tolerance lacks meaning if the optic is not mounted on (near) the central axis of the top plate. Due to their numerous mounting options, angular tolerance is not given for the KB3X3 and KBS98 kinematic mounts. The ball and V-groove design of the KB3X3 and the KBS98 are of the same high-quality as used in the KB1X1 and SB1.

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Posted Comments:
Poster: bdada
Posted Date: 2011-06-06 13:56:00.0
Response from Buki at Thorlabs: Thank you for your feedback. We are glad to hear you find our magnetic bases useful and will look into expanding this product line to include more sizes. If you have further questions, please contact TechSupport@thorlabs.com
Poster: syim
Posted Date: 2011-06-03 12:17:32.0
The magnetic bases are very useful. I love it. But I cannot find "middle size" type such as a 2"x2" plate or 3"x2" (like standard base, BA2). 3"x3" type is somewhat too bulky for my applications. Thanks.
Poster: klee
Posted Date: 2009-09-23 17:09:43.0
A response from Ken at Thorlabs to dvelkov: Thank you for your valuable feedback. Your suggestion has been forwarded to our engineering department. Meanwhile, if you are interested, we can work on a quote for making the top plate with #8-32 as a special.
Poster: klee
Posted Date: 2009-09-23 17:09:03.0
A response from Ken at Thorlabs to dvelkov: Thank you for your valuable feedback. Your suggestion has been forwarded to our engineering department. Meanwhile, if you are interested, we can work on a quote for making the top plate with #8-32 as a special.
Poster: dvelkov
Posted Date: 2009-09-23 14:55:52.0
It would be very useful to have 8-32 threaded center instead of 1/4-20. That would allow direct mounting of optical mounts (e.g. KM100) to the top plate instead of searching for thread adapters and/or using posts. This is first hand experience resulting from mounting needs. Thank you for your attention. Best Regards, Dragan Velkov VLOC - Subsidiary of II-VI, Inc. 7826 Photonics Drive New Port Richey, FL 34655 Tel.: (727) 375-8562, ext. 44549
Poster: Tyler
Posted Date: 2008-06-09 11:25:04.0
A response from Tyler at Thorlabs to sutherlandws: The basic concept of the kinematic base design is to utilize a 3 point contact that dont over constrain the position of the base. Thorlabs uses a cone, a flat, and a v-groove as the three points of contact. The cone maintains a pivot for the kinematic design while restricting motion on the x and y plane, the v-groove restricts the rotation of the base, and the flat provides a the third point contact. I will contact you via email to determine more precisely the kind of information you are looking for.
Poster: sutherlandws
Posted Date: 2008-06-04 19:50:13.0
Do you have some basic design documents/descriptions of kinematic mount protocols? My ME team is attempting to design a reproducible mount for a Raman instrument sampling accessory and I have had excellent success with these plates. Can such a mounting configuration be used to mount two components in a circular orientiation, on the outer edge of a donut-like metal ring? Any information you can provide would be appreciated.
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Kinematic Base: 1" x 1" (25 mm x 25 mm)
KB1X1
1" x 1" KB1X1 Base
  • 30 µrad Angular Repeatability
  • 30 µm Lateral Repeatability
  • Ball and V-Groove Design Allows High-Precision Positioning
  • Top and Bottom Plates Available Individually or as Complete Unit

The top mounting plate and bottom base plate of the KB1X1 kinematic base are magnetically coupled using two pairs of high-strength magnets. The top plate of the base can be inserted and removed with high repeatability. The center-located #8 (M4) through hole on the top and bottom plate is counterbored for a caphead screw and allows the bottom plate to be attached to a TR Series post. As an alternative, the KBT1X1T top plate is offered with four 8-32 holes (see image in overview). With the use of an AE8E25E (AE4M6M) adapter, the base can be secured to a 1/4"-20 (M6) tapped optical table.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
KB1X1 Support Documentation KB1X1 Complete 1" x 1" Kinematic Base, Top and Bottom Plates $72.00
Today
KBB1X1 Support Documentation KBB1X1 Bottom Plate Only of the KB1X1 Kinematic Base $38.00
Today
KBT1X1 Support Documentation KBT1X1 Top Plate Only of the KB1X1 Kinematic Base $38.00
Today
KBT1X1T Support Documentation KBT1X1T Customer Inspired! 8-32 Threaded Kinematic Top Plate $38.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KB25/M Support Documentation KB25/M Metric, Complete 25 mm x 25 mm Kinematic Base, Top and Bottom Plates $72.00
Today
KBB25/M Support Documentation KBB25/M Metric, Bottom Plate Only of the KB25/M Kinematic Base $38.00
Today
KBT25/M Support Documentation KBT25/M Metric, Top Plate Only of the KB25/M Kinematic Base $38.00
Today
KBT25T/M Support Documentation KBT25T/M Customer Inspired! M4 Threaded Kinematic Top Plate $38.00
Today
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Kinematic Base: 3" x 3" (75 mm x 75 mm)
KBT1X1T Application
  • 30 µm Lateral Repeatability
  • Ball and V-Groove Design Allows High-Precision Positioning
  • Top and Bottom Plates Available Individually or as Complete Unit

The top mounting plate and bottom base plate of the KB3X3 kinematic base are magnetically coupled using two pairs of high-strength magnets. With a ball and V-groove design, the top plate can be inserted and removed with high repeatability. The top plate has a central 1/4"-20 (M6) through hole that can be used to attach a post holder, while an array of nine 1/4"-20 (M6) tapped holes on the top plate provide the same mounting functionality as an optical breadboard. The image to the right shows the S120C power sensor mounted onto the KB3X3 base.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
KB3X3 Support Documentation KB3X3 Complete 3" x 3" Kinematic Base, Top and Bottom Plates $86.00
Today
KBB3X3 Support Documentation KBB3X3 Bottom Plate Only of the KB3X3 Kinematic Base $46.00
Today
KBT3X3 Support Documentation KBT3X3 Top Plate Only of the KB3X3 Kinematic Base $46.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KB75/M Support Documentation KB75/M Metric, Complete 75 mm x 75 mm Kinematic Base, Top and Bottom Plates $86.00
Today
KBB75/M Support Documentation KBB75/M Metric, Bottom Plate Only of the KB75/M Kinematic Base $46.00
Today
KBT75/M Support Documentation KBT75/M Metric, Top Plate Only of the KB75/M Kinematic Base $46.00
Today
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Round Kinematic Base: Ø1.70" (Ø43.2 mm)
SB1 Application

CL6 table clamps can be used in the groove of the bottom plate to fix the base in an arbitrary position on an optical table.

  • 1 µrad Repeatability
  • On/Off Switch to Connect/Disconnect Plates
  • Centered 1/4"-20 (M6) Mounting Hole for the SB1T(/M) Top Plate
  • Centered 8-32 (M4) Mounting Hole for the SB1T8(SB1T4/M) Top Plate
  • Top and Bottom Plates Available Individually or as Complete Unit

The top plate of this compact kinematic base can be easily removed and replaced with an ON/OFF switch that interrupts the magnetic force coupling the plates of the base. With a ball and V-groove design, the top plate will automatically reposition to an exact location with a repeatability of 1 µrad. The bottom plate has a centered 1/4"-20 (M6) through hole counterbored for a caphead screw that allows the base to be mounted to an optical table.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
SB1 Support Documentation SB1 1/4"-20 Tapped, Complete Kinematic Base, Top and Bottom Plates $91.00
Today
SB1T Support Documentation SB1T 1/4"-20 Tapped, Top Plate Only of the SB1 Kinematic Base $59.00
Today
SB1T8 Support Documentation SB1T8 Customer Inspired! 8-32 Tapped, Top Plate Only for the SB1B Kinematic Base $58.90
Today
SB1B Support Documentation SB1B Imperial and Metric, Bottom Only Plate of the SB1 and SB1/M Kinematic Bases $42.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
SB1/M Support Documentation SB1/M M6 Tapped, Complete Kinematic Base, Top and Bottom Plates $91.00
Today
SB1T/M Support Documentation SB1T/M M6 Tapped, Top Plate only of the SB1/M Kinematic Base $59.00
Today
SB1T4/M Support Documentation SB1T4/M Customer Inspired! M4 Tapped, Top Plate Only for the SB1B Kinematic Base $58.90
Today
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Kinematic Breadboard Seats
KBS98
  • Converts Any Breadboard into Kinematic Platform
  • Top and Bottom Plate Sets Available Individually or as Complete Unit

The KBS98 kinematic seats can be used to convert any breadboard into a kinematic platform that can be removed and replaced with a high degree of accuracy. The KBS98 consists of six plates. Three of the plates, which are referred to as the bottom set, have V-groove slots and should be mounted on the stationary optical table or breadboard. The other three plates, which are referred to as the top set, have an inset ball that will sit in the V-groove of the bottom plate.

The top plates should be attached to the optical breadboard that is being taken out of and put back into an optical setup. The seats should be arranged in a triangular pattern near the corners/edge of the optical breadboard with the V-grooves in the bottom plates aligned so that the three axes defined by the V-grooves intersect at a common point. Proper positioning of the plates is necessary in order to maximize the stability of the optical breadboard.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
KBS98 Support Documentation KBS98 Complete 6-Piece Kinematic Seat Set, Imperial and Metric $128.00
3-5 Days
KBS98T Support Documentation KBS98T Kinematic Breadboard Seats, Top Set (Three Pieces), Imperial and Metric $64.00
3-5 Days
KBS98B Support Documentation KBS98B Customer Inspired! Kinematic Breadboard Seats, Bottom Set (Three Pieces), Imperial and Metric $68.00
Today
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Indexing Mounting Base
Features
  • 10 µrad Repeatability
  • Indexes to 15 Positions
  • 8-32 (M4) Center Tapped Hole
Applications
  • Precise Switching of Shared Laser Systems
  • Directing Optical Systems to Multiple Test Instruments
  • Easy Exchange of Optical Components

The NX1F is a 15-position indexing kinematic base that is ideal for redirecting a laser to multiple targets on an optical table. Each indexed position is labeled, and the top plate returns to any given position with a repeatability of 10 µrad. Three 8-32 (M4) tapped mounting holes in the bottom plate can be used to secure the NX1F to a TR series post. The bottom plate can be secured to a 1/4"-20 (M6) tapped optical table or breadboard with the use of an AP8E25E (AP6M4M) adapter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
NX1F Support Documentation NX1F Complete, 15-Position Indexing Base, Top and Bottom Plates $82.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
NX1F/M Support Documentation NX1F/M Complete, 15-Position Indexing Base, Top and Bottom Plates, Metric $82.00
Today
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Indexing Mount for Ø1" Optics
NX1
PF10-03-M01 Ø1" Gold Mirror Mounted in NX1

Applications

  • Precise Switching of Shared Laser Systems
  • Directing Optical Output to Multiple Test Instruments
  • Easy, Repeatable Exchange of Optical Components

Features

  • <10 µrad Repeatability
  • Indexed with 15 Positions
  • Holds Ø1" Optics up to
    7 mm (0.27") Thick

The NX1 is a 15-position, indexed kinematic mount for Ø1" optics that is ideal for redirecting a laser to multiple targets on an optical table. Each indexed position is labeled by a letter, and the top plate returns to any given position with a repeatability of better than 10 µrad.

Three 8-32 (M4) tapped mounting holes in the bottom plate can be used to secure the NX1 to a TR series post. Alternatively, the bottom plate can also be secured to a 1/4"-20 (M6) tapped optical table or breadboard using an APE25E (AP6M4M) adapter.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
NX1 Support Documentation NX1 Complete, 15-Position Ø1" Optics Indexing Mount $91.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
NX1/M Support Documentation NX1/M Complete, 15-Position Ø1" Optics Indexing Mount, Metric $91.00
Today
Add To Cart
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