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Kinematic Bases


  • Square and Circular Magnetic Retention Bases
  • Magnetic Mounting Seats for Aluminum Breadboards
  • Indexing Mounts with 22.5° Increments
  • Precision Ball and V-Groove Design for High Repeatability

NX1N

Indexing Base
with Ø1" Optic Mount,
16 Positions

NX1NF

Indexing Base,
16 Positions

SB1

Locking Circular Base

KB3X3

Magnetic Base,
3" x 3"

KBM1

Lockable Kinematic Breadboard,
3.94" x 3.94"

KB2X2

Magnetic Base,
2" x 2"

Related Items


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View Imperial Product List
Item #QtyDescription
Imperial Product List
KBS981Complete, Kinematic Breadboard Seats, 6 Pieces
SH25S05011/4"-20 Stainless Steel Cap Screw, 1/2" Long, Pack of 25
MB61Aluminum Breadboard 6" x 6" x 1/2", 1/4"-20 Taps
View Metric Product List
Item #QtyDescription
Metric Product List
KBS981Complete, Kinematic Breadboard Seats, 6 Pieces
SH6MS121M6 x 1.0 Stainless Steel Cap Screw, 12 mm Long, Pack of 25
MB1515/M1Aluminum Breadboard, 150 mm x 150 mm x 12.7 mm, M6 Taps
KBS98 Kinematic Seats Can Be Used to Convert
a Breadboard into a Kinematic Platform

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View Imperial Product List
Item #QtyDescription
Imperial Product List
KBM11Complete, Switchable Magnetic Kinematic Breadboard, 1/4"-20 Taps
BC106N-UV1CCD Camera Beam Profiler, Ø30 µm - 6.6 mm, 190 - 350 nm
RS21Ø1" Pillar Post, 1/4"-20 Taps, L = 2", 8-32 Adapter Included
POLARIS-CA11Flexure Clamping Arm for Ø1" Posts, Non-Bridging, Stainless Steel, 1/4"-20 Clamping Screw
View Metric Product List
Item #QtyDescription
Metric Product List
KBM1/M1Complete, Switchable Magnetic Kinematic Breadboard, M6 Taps
BC106N-UV/M1CCD Camera Beam Profiler, Ø30 µm - 6.6 mm, UV, 190 - 350 nm, Metric
RS50/M1Ø25.0 mm Pillar Post, M6 Taps, L = 50 mm, M4 Adapter Included
POLARIS-CA25/M1Flexure Clamping Arm for Ø25 mm Posts, Non-Bridging, Stainless Steel, M6 x 1.0 Clamping Screw
KBM1 Locking Kinematic Base with
CCD Camera Beam Profiler
Mounted on a Ø1" Post

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
  • Some 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

Product Image
(Click to Enlarge)
AB90 AB90 AB90A(/M) AB90B(/M) AB90C(/M) AB90C(/M) AB90C(/M) AB90C(/M)
Item # KB1X1
(KB25/M)
KB2X2
(KB50/M)
KB3X3
(KB75/M)
KBM1
(KBM1/M)
KBS98 SB1
(SB1/M)
NX1NF (NX1NF/M) NX1N
(NX1N/M)
Features Compact Multiple Mounting Options Multiple Mounting Options Multiple Mounting Options,
Locking Magnet
Breadboard Mounting Locking Magnet 16 Positions Ø1" Optic Mount,
16 Positions
Tapped Holes None Four 1/4"-20 (M6) Taps
Four 8-32 (M4) Taps
Nine 1/4"-20 (M6) Taps 39 1/4"-20 (M6) Taps N/A 1/4"-20 (M6) Tap 8-32 (M4) Tap N/A
Counterbores #8 (M4) Hole 1/4" (M6) Hole 1/4" (M6) Hole None 12 1/4" (M6) Slots None None N/A
Size 1" x 1"
(25 mm x 25 mm)
2" x 2"
(50 mm x 50 mm)
3" x 3"
(75 mm x 75 mm)
3.94" x 3.94"
(100 mm x 100 mm)
N/A Ø1.7" (Ø43 mm) Ø1.3" (Ø33 mm) Ø1.3" (Ø33 mm)

Repeatability Testing

A selection of Thorlabs Kinematic Bases were tested to determine the deviation of a reflected beam attributed to removing and replacing the top plate of the base. The test setup (see photo below and on the left) consisted of an S1FC635 fiber-coupled laser source terminating in a fiber collimator that was held in a POLARIS-K1 Mirror Mount. The collimated beam was directed towards a BB1-E02 mirror housed in an LMR1 fixed mount that was post mounted on the kinematic base being tested (see photo below and center). After reflecting off the first mirror, the beam traveled towards and reflected off of a second mirror housed in a POLARIS-K1 mount. After reflection, the light was directed onto a PDP90A Lateral Effect Position Sensor that had three SM05L10 SM05-Threaded Lens Tubes attached to the front to block stray light (see photo below and to the right). The total beam path is shown in the first photo and was 1 m long.

The test was conducted by first centering the beam on the sensor through adjustment of the Polaris mount holding the second mirror. After centering the beam, thirty seconds were allowed to pass for stabilization purposes, and then a measurement of the beam position was made and recorded as the inital position. Next, the top plate of the kinematic base was lifted from the bottom and then replaced in the same orientation. After a thirty second stabilization period, a second measurement of the beam position was taken. Finally, the Polaris mirror mount was readjusted to center the beam on the sensor, and the process was repeated. Sixty data points were collected, amounting to thirty measurements of the beam displacement.

The results of the measurements are presented in the table and graphs below as the absolute difference in µrad between the original position of the beam on the sensor and the position after removing and replacing the top plate of the kinematic base. Each value has been divided by two because a change of θ in the mirror's angle results in a change of 2θ in the measured position. The combined value takes into account both X- and Y-position measurements and represents the net distance of the deviation from the origin.

KB1X1 (KB25/M) - Summary of Results
Dimension Mean Median Minimum Maximum Plot
|ΔX| 2.40 µrad 1.20 µrad 0.03 µrad 26.72 µrad Position Deviation
|ΔY| 4.78 µrad 2.04 µrad 0.04 µrad 21.71 µrad Position Deviation
Combined 6.36 µrad 2.95 µrad 0.58 µrad 26.72 µrad Position Deviation
KB1X1
KB2X2 (KB50/M) - Summary of Results
Dimension Mean Median Minimum Maximum Plot
|ΔX| 10.22 µrad 10.39 µrad 0.95 µrad 19.37 µrad Position Deviation
|ΔY| 6.04 µrad 5.76 µrad 0 µrad 24.16 µrad Position Deviation
Combined 11.87 µrad 11.43 µrad 3.60 µrad 30.96 µrad Position Deviation
KB3X3
KB3X3 (KB75/M) - Summary of Results
Dimension Mean Median Minimum Maximum Plot
|ΔX| 16.71 µrad 8.00 µrad 0.06 µrad 73.54 µrad Position Deviation
|ΔY| 10.47 µrad 3.04 µrad 0.26 µrad 58.63 µrad Position Deviation
Combined 21.20 µrad 11.74 µrad 1.30 µrad 81.90 µrad Position Deviation
KB3X3
SB1 (SB1/M) - Summary of Results
Dimension Mean Median Minimum Maximum Plot
|ΔX| 9.15 µrad 0.64 µrad 0.01 µrad 159.40 µrad Position Deviation
|ΔY| 3.07 µrad 1.71 µrad 0.01 µrad 17.48 µrad Position Deviation
Combined 11.21 µrad 2.31 µrad 0.52 µrad 159.47 µrad Position Deviation
SB1
NX1NF (NX1NF/M) and NX1N (NX1N/M) - Summary of Results
Dimension Mean Median Minimum Maximum Plot
|ΔX| 10.05 µrad 1.32 µrad 0.09 µrad 140.45 µrad Position Deviation
|ΔY| 1.30 µrad 1.00 µrad 0.01 µrad 4.27 µrad Position Deviation
Combined 10.6 µrad 2.12 µrad 0.38 µrad 140.50 µrad Position Deviation
NX1NF
NX1N

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Posted Comments:
Poster:snortman
Posted Date:2015-11-23 10:52:21.887
Hi, Is there any data available regarding the magnetic pull forces of the kinematic mounts? I need to see how strong they are for use under dynamic conditions. Thank you, Scott Nortman snortman@magicleap.com
Poster:besembeson
Posted Date:2015-11-25 11:46:32.0
Response from Bweh at Thorlabs USA: The KB1X1 or KB25/M rear earth magnets have individual pull force of about 1.8lbs which gives a total of 3.6lbs for the base.
Poster:
Posted Date:2015-09-24 11:50:17.16
KB1X1 - Summary of 30 Measurements: Did you test with 30 pieces from different lots? Or tsted only one piece?
Poster:besembeson
Posted Date:2015-10-08 12:37:24.0
Response from Bweh at Thorlabs USA: These were 30 measurements from a single unit of each kinematic base.
Poster:FURUI.WANG
Posted Date:2015-03-20 13:38:11.46
Is it possible to mount the KB3X3 to an robot as a quick release connector for pick up tool? In this case, the top piece is fixed and the bottom piece is not supported. Will the top piece has enough force to hold the bottom piece? Thanks!
Poster:cdaly
Posted Date:2015-03-25 02:55:59.0
Response from Chris at Thorlabs: These values are typical and in no way a guarantee, but I found that the KB3X3 plates will typically separate under a tensile force or roughly 6.5 pounds or a torque of about 0.4 ft-lbs.
Poster:francois.wildi
Posted Date:2015-01-21 11:30:35.75
hello, I would like to know how much I can load the KBS98 kinematic seats (per seat). I would like to use them to position an optical mount thst is rather heavy on an optical table.
Poster:cdaly
Posted Date:2015-01-21 02:41:40.0
Response from Chris at Thorlabs: I'm afraid we do not have an official load spec for these, but recommend no more than 75kg for a full set of three breadboard seats as a guideline.
Poster:dewilcox
Posted Date:2014-08-08 12:30:52.09
I love to use these. Would you consider using a sapphire-based v-grooves instead of the rod-based v-grooves currently in use? I imagine sapphire would cause less fretting over time. Thorlabs' Polaris mounts use sapphire v-grooves, and I've been very pleased with them.
Poster:cdaly
Posted Date:2014-08-13 10:28:18.0
Response from Chris at Thorlabs: Thank you for your suggestion. The only down side really is sapphire seats would likely increase the cost of the product. We are discussing this internally and a change may be implemented in the future. We appreciate the input and would be happy to hear any other ways in which you'd like to see our product line expanded or improved.
Poster:mbeck
Posted Date:2014-06-05 15:16:13.15
Dear Sir/Madam, I would like to use the CAD file for the mentioned product (KBS98). Yet, on your homepage I can only find the imperial one. Do you have a digital version of the metric KBS98 that you can provide/send me? Regards, Dr. Matthias Beck
Poster:besembeson
Posted Date:2014-06-05 05:34:06.0
A response from Bweh E at Thorlabs Newton-USA: Thanks for contacting Thorlabs. These are designed to work for both imperial or metric breadboards. The elongated slotted holes allow the seats to all point to a common center in the middle of the breadboard, whether it is metric or imperial.
Poster:robert.b.brown
Posted Date:2014-03-19 07:15:25.693
Hi, We have been using he KB3X3 Kinematic Bases widely in a number of different Optical Table applications which support various Procution (highish volume) Laser Products over a number of Years. The basic features of the mounts are what we rely on, i.e precision alignment and repeatability when removing / refitting elements. Thorlabs have provided some accuracy and repeatability Test Results on the Website which show that performance is very good. Do Thorlabs have any Data showing the long term accuracy and repeatability of these products over many hundreds of operations rather than just '30 measurements'. I would be interested in any longer term data involving Hundered or Thousands of operations. Do Thorlabs have a suggested 'life' of the Products after which replacement should be considered ? Do Thorlabs have any recommended periodic inspection criteria for the 2 Plates of the Kinematic Base to allow a user to determine if a Base is worn beyond its useful life ? - Any comments on the above points appreciated - Best Regards - Bob Brown
Poster:jlow
Posted Date:2014-03-26 10:33:12.0
Response from Jeremy at Thorlabs: You can inspect the balls and dowel pins under a 10x to 20x inspection scope. The features to look for would be chips, scratches, pits, or any surface imperfection that would have an impact on the repeatability. The dowel pins that the ball rests on could start to deform over many uses and could start to indent as well. On a related note, we are going to be releasing a new switchable design soon that would extend the lifetime by minimizing the impact of the two plates.
Poster:
Posted Date:2014-01-29 14:00:59.95
Hello, what's the maximum allowed (vertical) load on KB3X3 and SB1? Thanks.
Poster:jlow
Posted Date:2014-02-13 09:03:44.0
Response from Jeremy at Thorlabs: In the vertical orientation, the maximum torque for the KB3X3 is about 0.5 lbs-ft (0.677 N-m). For the SB1, it is about 0.0189lbs-ft (0.0256 N-m).
Poster:guignot
Posted Date:2013-11-15 10:14:42.73
Hi, I need to switch a large mirror on and off automatically with a very high repeatability and I would like to know what is the magnetic force value for SB1? Thanks.
Poster:cdaly
Posted Date:2013-11-21 03:29:29.0
Response from Chris at Thorlabs: We do not really have a specified value, but just measuring one off the shelf I saw a max clamping force of just about 20 Newtons (4.5 lbs) when the SB1 was switched to the ON position. This can vary from item to item though.
Poster:l.obst
Posted Date:2013-07-09 10:13:25.12
Hello, is there another vacuum compatible version of the magnetic mounts?
Poster:cdaly
Posted Date:2013-07-09 11:00:00.0
Response from Chris at Thorlabs: Thank you for your feedback. We have provided an unanodized version with vacuum compatible grease in the past as a custom. I will contact you directly about providing a quote.
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.

Kinematic Base: 1" x 1" (25 mm x 25 mm)

KB1X1
KB1X1 Kinematic Base
  • Ball and V-Groove Design Allows High-Precision Positioning
  • Top Plate Included in Complete Base (KBT1X1) Features an #8 (M4) Counterbore
  • Alternate Top Plate (KBT1X1T) Features Four 8-32 (M4) Tapped Holes and a #8 (M4) Counterbore
  • Bottom Plate has a #8 (M4) Counterbore

The top mounting plate and bottom base plate of the KB1X1 (KB25/M) kinematic base are magnetically coupled using two pairs of high-strength magnets which provide a holding force of 3.6 lbs. With a ball and V-groove design, the top plate can be inserted and removed with high repeatability. The top and bottom plate both have a center-located #8 (M4) counterbore hole which allows either plate to be mounted to a Ø1/2" post. Using an AE8E25E (AE4M6M) thread adapter, the plates can also be secured to a 1/4"-20 (M6) tapped optical table. Alternatively, the KBT1X1T and KBT25T/M top plates feature four 8-32 or M4 tapped holes, respectively (see image to the left). During angular repeatability testing, we obtained a mean of 6.36 µrad, a minimum of 0.58 µrad, and a maximum of 26.72 µrad. For information about repeatability testing of the KB1X1 and other kinematic bases, see the Repeatability tab.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
KB1X1 Support Documentation
KB1X1Complete 1" x 1" Kinematic Base, Top and Bottom Plates, #8 Counterbores
$77.25
Today
KBT1X1 Support Documentation
KBT1X1Top Plate Only of the KB1X1 Kinematic Base, #8 Counterbore
$40.75
Today
KBB1X1 Support Documentation
KBB1X1Bottom Plate Only of the KB1X1 Kinematic Base, #8 Counterbore
$40.75
Today
KBT1X1T Support Documentation
KBT1X1TCustomer Inspired!Top Plate for KBB1X1 Kinematic Bottom Plate, Four 8-32 Taps
$40.75
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KB25/M Support Documentation
KB25/MComplete 25 mm x 25 mm Kinematic Base, Top and Bottom Plates, M4 Counterbores
$77.25
Today
KBT25/M Support Documentation
KBT25/MTop Plate Only of the KB25/M Kinematic Base, M4 Counterbore
$40.75
Today
KBB25/M Support Documentation
KBB25/MBottom Plate Only of the KB25/M Kinematic Base, M4 Counterbore
$40.75
Today
KBT25T/M Support Documentation
KBT25T/MCustomer Inspired!Top Plate for KBB25/M Kinematic Bottom Plate, Four M4 Taps
$40.75
Today

Kinematic Base: 2" x 2" (50 mm x 50 mm)

KB2X2 Application
Click to Enlarge

KB2X2 Kinematic Base
  • Ball and V-Groove Design Allows High-Precision Positioning
  • Top Plate Features Four 1/4"-20 (M6) Tapped Holes, Four 8-32 (M4) Tapped Holes, and a 1/4" (M6) Counterbore
  • Bottom Plate Features a 1/4" (M6) Counterbore
  • Top and Bottom Plates Available Individually or as Complete Unit

The top mounting plate and bottom base plate of the KB2X2 (KB50/M) kinematic base are magnetically coupled using two pairs of high-strength magnets which provide a holding force of 15 lbs. 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" (M6) counterbore that can be used to attach a Ø1" post. Alternatively, an SD1 counterbore adapter can be used to make the top plate compatible with 8-32 components, such as Ø1/2" posts. Additionally, the KBT2X2 top plate features four 1/4"-20 (M6) tapped holes and four 8-32 (M4) tapped holes to provide flexible mounting options. As seen in the image to the left, the top plate of the KB2X2 is engraved with a triangle indicating the high-load mounting region.

The top and bottom plates also have blind holes in the side for inserting 5/32" (4 mm) ball drivers to pry the plates apart. Additionally, the KB2X2 features a 9/64" (3 mm) hex head cap screw for tip prevention that can be used to prevent the two plates from separating while in use. Individual top and bottom plates are also available for interchanging different optomechanical setups. However, the 8-32 (M4) cap screw for tip prevention is not included with the purchase of individual top and bottom plates. If you would like a KB2X2 with fewer magnets (weaker magnetic coupling), please contact Technical Support.

During angular repeatability testing, we obtained a mean of 11.87 µrad, a minimum of 3.60 µrad, and a maximum of 30.96 µrad. For information about repeatability testing of the KB2X2 and other kinematic bases, see the Repeatability tab.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
KB2X2 Support Documentation
KB2X2Complete 2” x 2” Kinematic Base, Top and Bottom Plates, 1/4"-20 Mounting
$81.75
Today
KBT2X2 Support Documentation
KBT2X2Top Plate Only of the KB2X2 Kinematic Base, 1/4"-20 Mounting
$44.00
Today
KBB2X2 Support Documentation
KBB2X2Bottom Plate Only of the KB2X2 Kinematic Base, 1/4"-20 Mounting
$44.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KB50/M Support Documentation
KB50/MComplete 50 mm x 50 mm Kinematic Base, Top and Bottom Plates, M6 Mounting
$81.75
Today
KBT50/M Support Documentation
KBT50/MTop Plate Only of the KB50/M Kinematic Base, M6 Mounting
$44.00
Today
KBB50/M Support Documentation
KBB50/MBottom Plate Only of the KB50/M Kinematic Base, M6 Mounting
$44.00
Today

Kinematic Base: 3" x 3" (75 mm x 75 mm)

KB3X3 Application
Click to Enlarge

KB3X3 Kinematic Base
KB3X3 Application
Click to Enlarge
View Imperial Product List
Item #QtyDescription
Imperial Product List
KB3X31Complete 3" x 3" Kinematic Base, Top and Bottom Plates, 1/4"-20 Mounting
POLARIS-K2F11Polaris® Low Distortion Ø2" Mirror Mount, 2 Adjusters
RS11Ø1" Pillar Post, 1/4"-20 Taps, L = 1", 8-32 Adapter Included
SH25S03811/4"-20 Stainless Steel Cap Screw, 3/8" Long, Pack of 25
SH8S03818-32 Stainless Steel Cap Screw, 3/8" Long, Pack of 50
View Metric Product List
Item #QtyDescription
Metric Product List
KB75/M1Complete 75 mm x 75 mm Kinematic Base, Top and Bottom Plates, M6 Mounting
POLARIS-K2F11Polaris® Low Distortion Ø2" Mirror Mount, 2 Adjusters
RS25/M1Ø25.0 mm Pillar Post, M6 Taps, L = 25 mm, M4 Adapter Included
SH6MS101M6 x 1.0 Stainless Steel Cap Screw, 10 mm Long, Pack of 25
SH4MS101M4 x 0.7 Stainless Steel Cap Screw, 10 mm Long, Pack of 50
POLARIS-K2F1 Mirror Mount on KB3X3 Base
  • Ball and V-Groove Design Allows High-Precision Positioning
  • Top Plate Features a Center 1/4" (M6) Counterbore, Two 1/4" (M6) Counterbored Slots, and Nine 1/4"-20 (M6) Tapped Holes
  • Bottom Plate Features a Center 1/4" (M6) Counterbore and Two 1/4" (M6) Counterbored Slots
  • Top and Bottom Plates Available Individually or as Complete Unit

The top mounting plate and bottom base plate of the KB3X3 (KB75/M) kinematic base are magnetically coupled using two pairs of high-strength magnets which provide a holding force of 6.5 lbs. 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" (M6) counterbore that can be used to attach a Ø1/2" 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. As seen in the image to the left, the top plate of the KB3X3 is engraved with a triangle indicating the high-load mounting region. Individual top and bottom plates are also available for interchanging different optomechanical setups.

During angular repeatability testing, we obtained a mean of 21.20 µrad, a minimum of 1.30 µrad, and a maximum of 81.90 µrad. For information about testing done on the repeatability of the KB3X3 and other kinematic bases, please see the Repeatability tab. 

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
KB3X3 Support Documentation
KB3X3Complete 3" x 3" Kinematic Base, Top and Bottom Plates, 1/4"-20 Mounting
$92.25
Today
KBT3X3 Support Documentation
KBT3X3Top Plate Only of the KB3X3 Kinematic Base, 1/4"-20 Mounting
$49.50
Today
KBB3X3 Support Documentation
KBB3X3Bottom Plate Only of the KB3X3 Kinematic Base, 1/4"-20 Mounting
$49.50
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KB75/M Support Documentation
KB75/MComplete 75 mm x 75 mm Kinematic Base, Top and Bottom Plates, M6 Mounting
$92.25
Today
KBT75/M Support Documentation
KBT75/MTop Plate Only of the KB75/M Kinematic Base, M6 Mounting
$49.50
Today
KBB75/M Support Documentation
KBB75/MBottom Plate Only of the KB75/M Kinematic Base, M6 Mounting
$49.50
Today

Lockable Kinematic Breadboard: 3.94" x 3.94" (100 mm x 100 mm)


Click to Enlarge

KBM1 Kinematic Breadboard

Click to Enlarge

View Imperial Product List
Item #QtyDescription
KBM11Complete, Switchable Magnetic Kinematic Breadboard, 1/4"-20 Taps
FT-38X1001Multi-Axis FiberBench, 38 mm x 100 mm, 5 Ports, 12 Positions
FBT-50NIR150:50 Fiberbench Beamsplitter Module, 600 - 1700 nm
LPR-15501Linear Polarizer Reference Module, 1510 - 1590 nm
FBR-AQ31Achromatic Quarter-Wave Plate Module for FiberBench, 1100 - 2000 nm
View Metric Product List
Item #QtyDescription
KBM1/M1Complete, Switchable Magnetic Kinematic Breadboard, M6 Taps
FT-38X1001Multi-Axis FiberBench, 38 mm x 100 mm, 5 Ports, 12 Positions
FBT-50NIR150:50 Fiberbench Beamsplitter Module, 600 - 1700 nm
LPR-15501Linear Polarizer Reference Module, 1510 - 1590 nm
FBR-AQ31Achromatic Quarter-Wave Plate Module for FiberBench, 1100 - 2000 nm
FiberBench Mounted on KBM1 Base
  • Magnetic Holding Force of 16.8 lbs
  • Ball and V-Groove Design Allows High-Precision Positioning
  • Top Plate Offers 39 1/4"-20 (M6) Tapped Holes for Mounting
  • Top and Bottom Plates Available Individually or as Complete Unit

The KBM1(/M) is a compact, high-precision, low-profile, lockable kinematic magnetic base, measuring 3.94" x 3.94" x 0.98" (100.0 mm x 100.0 mm x 25.0 mm). The top mounting plate and bottom base plate of the KBM1(/M) kinematic base (see photo to the far right) are magnetically coupled using a high-strength magnet. The KBM1(/M) features a ball and V-groove design with a removable top plate. Individual top and bottom plates are also available for interchanging different optomechanical setups.

The top plate has an array of 39 1/4"-20 (M6) tapped holes [0.46" (11.8 mm) deep] spaced 0.5" (12.5 mm) apart and provides the same mounting functionality as an optical breadboard. The bottom plate has two 2.00" (50.0 mm) long counterbored slots for 1/4"-20 (M6) cap screws for mounting to an optical table. The magnetic force between the two plates is switched on and off by turning the switching screw through 90° using a 3/16" (5 mm) hex wrench. The magnetic switch design allows for the top plate to be mounted with less risk of damage or misalignment to precision components and fragile payloads.

Please note that the switch in the base should be set to off before placing the top to avoid damaging the kinematic seats. The switch can be engaged once the top has been installed. Maximum stability in the top plate can be achieved by keeping the center of mass of optomechanics mounted on the plate within the triangular region between the kinematic seats (see photos above).

The photo to the upper right shows the KBM1 being used with our FT-38X135 FiberBench. The FiberBench system is designed to couple fiber optic setups into free space and facilitates the quick exchange, insertion, or removal of optical components while maintaining the same optical axis.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
KBM1 Support Documentation
KBM1Complete, Switchable Magnetic Kinematic Breadboard, 1/4"-20 Taps
$292.00
Today
KBM1T Support Documentation
KBM1TTop Plate Only of the KMB1 Kinematic Breadboard, 1/4"-20 Taps
$110.00
Today
KBM1B Support Documentation
KBM1BBottom Plate Only of the KMB1 Kinematic Breadboard
$183.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KBM1/M Support Documentation
KBM1/MComplete, Switchable Magnetic Kinematic Breadboard, M6 Taps
$292.00
Today
KBM1T/M Support Documentation
KBM1T/MTop Plate Only of the KMB1/M Kinematic Breadboard, M6 Taps
$110.00
Today
KBM1B/M Support Documentation
KBM1B/MBottom Plate Only of the KMB1/M Kinematic Breadboard
$183.00
Today

Kinematic Breadboard Seats


Click to Enlarge
View Imperial Product List
Item #QtyDescription
Imperial Product List
KBS981Complete, Kinematic Breadboard Seats, 6 Pieces
SH25S05011/4"-20 Stainless Steel Cap Screw, 1/2" Long, Pack of 25
MB61Aluminum Breadboard 6" x 6" x 1/2", 1/4"-20 Taps
View Metric Product List
Item #QtyDescription
Metric Product List
KBS981Complete, Kinematic Breadboard Seats, 6 Pieces
SH6MS121M6 x 1.0 Stainless Steel Cap Screw, 12 mm Long, Pack of 25
MB1515/M1Aluminum Breadboard, 150 mm x 150 mm x 12.7 mm, M6 Taps
KBS98 Kinematic Seats Can Be Used to Convert
a Breadboard into a Kinematic Platform
  • Converts Any Breadboard into Kinematic Platform
  • Ball and V-Groove Design Allows High-Precision Positioning
  • Seats Offer Universal 1/4" (M6) Counterbores for Breadboard Mounting
  • Top and Bottom Plate Sets Available Individually or as Complete Unit

The KBS98 kinematic seats can be used to convert any imperial or metric 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. Each seat has a high-strength magnet which, when used together with another seat, provides a holding force of 10 lbs.

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 Price Available / Ships
KBS98 Support Documentation
KBS98Complete, Kinematic Breadboard Seats, 6 Pieces
$137.00
Today
KBS98T Support Documentation
KBS98TTop Seats Only of the KBS98 Kinematic Breadboard Seats, 3 Pieces
$68.75
Today
KBS98B Support Documentation
KBS98BCustomer Inspired!Bottom Seats Only of the KBS98 Kinematic Breadboard Seats, 3 Pieces
$73.00
Today

Round Kinematic Base: Ø1.70" (Ø43.2 mm)

Transmission OD 0.1 - 0.6
Click to Enlarge
View Imperial Product List
Item #QtyDescription
Imperial Product List
CL62Table Clamp, RLA Series Optical Rails
SB11Complete Round Kinematic Base, 1/4"-20 Tap
SH25S05011/4"-20 Stainless Steel Cap Screw, 1/2" Long, Pack of 25
W25S05011/4" Washer, M6 Compatible, Stainless Steel, Pack of 100
View Metric Product List
Item #QtyDescription
Metric Product List
CL62Table Clamp, RLA Series Optical Rails
SB1/M1Complete Round Kinematic Base, M6 Tap
SH6MS121M6 x 1.0 Stainless Steel Cap Screw, 12 mm Long, Pack of 25
W25S05011/4" Washer, M6 Compatible, Stainless Steel, Pack of 100
  • On/Off Switch to Connect/Disconnect Plates
  • SB1(/M) Includes 1/4"-20 (M6) Tapped Top Plate and 1/4" (M6) Counterbored Bottom Plate
  • Top Plate with Centered 8-32 Tap Available

The SB1(/M) round kinematic base is comprised of both a top plate and a bottom plate. The top plate can be easily removed and replaced with an ON/OFF switch that interrupts the magnetic force coupling the plates of the base. When set to ON, high-strength magnets in the base provide a holding force of 4.5 lbs. With a ball and V-groove design, the top plate will automatically reposition to an exact location with high repeatability. 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. Alternatively, 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, as shown in the photo to the right. During angular repeatability testing, we obtained a mean of 11.21 µrad, a minimum of 0.52 µrad, and a maximum of 159.47 µrad. For information about testing done on the repeatability of the SB1 and other kinematic bases, please see the Repeatability tab.

The SB1(/M) round kinematic base ships with the SB1T(/M) top plate with a 1/4"-20 (M6) tap and the SB1B bottom plate. Note that the SB1T8 top plate with an 8-32 tap and the SB1T4/M top plate with an M4 tap are compatible with both the SB1T(/M) and SB1B, and must be purchased separately for more threading options.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
SB1 Support Documentation
SB1Complete Round Kinematic Base, 1/4"-20 Tap
$97.75
Today
SB1T Support Documentation
SB1TTop Plate for SB1(/M) or SB1B, 1/4"-20 Tap
$63.25
Today
SB1T8 Support Documentation
SB1T8Customer Inspired!Top Plate for SB1(/M) or SB1B, 8-32 Tap
$63.25
Today
+1 Qty Docs Part Number - Universal Price Available / Ships
SB1B Support Documentation
SB1BBottom Plate Only of SB1 or SB1(/M) Round Kinematic Bases
$45.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
SB1/M Support Documentation
SB1/MComplete Round Kinematic Base, M6 Tap
$97.75
Today
SB1T/M Support Documentation
SB1T/MTop Plate for SB1(/M) or SB1B, M6 Tap
$63.25
Today
SB1T4/M Support Documentation
SB1T4/MCustomer Inspired!Top Plate for SB1(/M) or SB1B, M4 Tap
$63.25
Today

Indexing Mounting Base: Ø1.3" (Ø33 mm)

Indexing Mounting Base
Click to Enlarge
Kinematic mounts, such as the KM100CP, can be mounted to the NX1NF to allow for tip and tilt adjustments.
Indexing Mounting Base
Click to Enlarge
Top and Bottom Plates of the NX1NF(/M) 
  • Indexed with 16 Positions at 22.5° Increments
  • Top Plate has an 8-32 (M4) Tap for Component Mounting
  • Three 8-32 (M4) Tapped Mounting Holes in Bottom Plate
  • Easy, Repeatable Exchange of Optical Components

The NX1NF(/M) Indexing Base features 16 indexed positions every 22.5° allowing mounted components to be held at both 45° and 90°. The angular positions are engraved on the base plate for fast alignment. The top plate returns to any given position, indicated by an engraved witness line, with high repeatability. This mount is ideal for redirecting a laser to multiple targets on an optical table, as well as for precise switching of shared laser systems.

For maximum stability, the center of gravity of components mounted to the top plate, NX1NFT(/M), should be located within the designated mounting region (see photo above).

Neodymium iron magnets couple the top and bottom plates while stainless steel ball bearings and V-grooves provide the 16 indexing positions. Three 8-32 (M4) tapped mounting holes in the bottom plate allow the mount to be secured to a Ø1/2" post. A small through hole, located directly under the 90° engraving on the bottom plate, accepts a 5/64" (2 mm) balldriver to help provide enough torque when attaching the mount to the post. The magnets in the NX1NF provide a holding force of 1.5 lbs between the top and bottom plates. During angular repeatability testing, we obtained a mean of 10.6 µrad, a minimum of 0.38 µrad, and a maximum of 140.50 µrad. For information about testing done on the repeatability of the NX1NF and other kinematic bases, please see the Repeatability tab.

Please Note: The top plate of this indexing mount is compatible with the bottom plate of the NX1N(/M) 16-position, indexing mount (sold below).

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
NX1NF Support Documentation
NX1NFComplete 16-Position Tapped Indexing Mounting Base, 8-32 Taps
$97.00
Today
NX1NFT Support Documentation
NX1NFTTop Plate Only of NX1NF Indexing Mounting Base, 8-32 Tap
$41.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
NX1NF/M Support Documentation
NX1NF/MComplete 16-Position Tapped Indexing Mounting Base, M4 Taps
$97.00
Today
NX1NFT/M Support Documentation
NX1NFT/MTop Plate Only of NX1NF/M Indexing Mounting Base, M4 Tap
$41.00
Today

Indexing Mount for Ø1" Optics

Indexing Optic Mount
Click to Enlarge
The NX1N(/M) Indexing Mount can hold an optic at any one of 16 positions, including 45° and 90°.
  • Indexed with 16 Positions at 22.5° Increments
  • Holds Ø1" Optics up to 7 mm (0.27") Thick
  • Three 8-32 (M4) Mounting Holes in Bottom Plate
  • Easy, Repeatable Exchange of Optical Components

The NX1N(/M) Indexing Mount for Ø1" optics features 16 indexed positions every 22.5°, allowing the optic to be held at both 45° and 90°. This mount is ideal for redirecting a laser to multiple targets on an optical table, and its angular positions are engraved on the base plate for fast alignment. The top plate returns to any given position, indicated with the engraved witness line, with a high repeatability. During angular repeatability testing, we obtained a mean of 10.6 µrad, a minimum of 0.38 µrad, and a maximum of 140.50 µrad. For information about testing done on the repeatability of the NX1N and other kinematic bases, please see the Repeatability tab.

The included SM1 (1.035"-40) retaining ring (SM1RR) secures the optic against the front lip of the mount. This indexing mount can hold optics that are no greater than 7 mm (0.27") thick. Neodymium iron magnets couple the top and bottom plates, while stainless steel ball bearings and V-grooves provide the 16 indexed positions. Three 8-32 (M4) tapped mounting holes in the bottom plate allow the mount to be secured to a Ø1/2" post. A small through hole, located directly under the 90° engraving on the bottom plate, accepts a 5/64" (2.00 mm) balldriver to help provide enough torque when attaching the mount to the post.

Please Note: The top plate of this indexing mount is compatible with the bottom plate of the NX1NF (NX1NF/M) 16-position, indexing mounting base.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available / Ships
NX1N Support Documentation
NX1NCustomer Inspired!16-Position Indexing Mount for Ø1" Optics, 8-32 Taps
$110.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
NX1N/M Support Documentation
NX1N/MCustomer Inspired!16-Position Indexing Mount for Ø1" Optics, M4 Taps
$110.00
Today
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