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Kinematic Platform Mounts


Related Items

KM200x Body
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KM200B with Mounting Plate Removed
KM100x Body
Click for Details

KM100B or KM100PM with Mounting Plate Removed

Features

  • Kinematic Vertical or Horizontal Mounting Surfaces
  • Ideal for Prisms and Non-Standard Optics
  • ±3° or ±4° of Pitch and Yaw Adjustment
  • Several 6-32 (M4) Tapped Holes for Locating Clamping Arms (Sold Below)
  • #8 (M4) Through Holes for Ø1/2" Post Mounting
  • Fabricated from Black Anodized Aluminum

Thorlabs' Kinematic Platform Mounts provide a flat mounting surface with kinematic knobs for controlling tip and tilt. They can be oriented either horizontally or vertically using a Ø1/2" Post. Each contains several mounting locations for our Clamping Arms, which use a nylon-tipped setscrew to hold optics against the flat surface.

The KM100B(/M) and KM200B(/M) Kinematic Platform Mounts include a mounting plate that lies perpendicular to the tip and tilt fine adjusters. In contrast, the KM100PM(/M) Kinematic Prism Mount's mounting plate is parallel to the fine adjusters. The KM200B(/M) additionally contains five 1/4"-20 (M6) tapped holes. The mounting plates are held in with 4-40 cap screws, and can be removed and replaced with custom-made plates. See the drawings to the upper right for information on dimensions.

The 1/4"-80 adjusters can be locked in place using our LN2580 Bronze Locking Nut (sold separately) once the final position is reached.

Click the Support Documentation icon document icon or Part Number below to view the available support documentation
Part Number Product Description
KM100B Support Documentation KM100B : 2" x 2" Kinematic Platform Mount
KM100B/M Support Documentation KM100B/M : 52 mm x 52 mm Kinematic Platform Mount
KM100PM Support Documentation KM100PM : Kinematic Prism Mount, Eight 6-32 Taps
KM100PM/M Support Documentation KM100PM/M : Kinematic Prism Mount, Eight M4 Taps
KM200B Support Documentation KM200B : 3" x 3" Kinematic Platform Mount
Part Number Product Description
KM200B/M Support Documentation KM200B/M : 77 mm x 77 mm Kinematic Platform Mount
PM3 Support Documentation PM3 : Small Adjustable Clamping Arm, 6-32 Threaded Post
PM3/M Support Documentation PM3/M : Small Adjustable Clamping Arm, M4 Threaded Post
PM4 Support Documentation PM4 : Large Adjustable Clamping Arm, 6-32 Threaded Post
PM4/M Support Documentation PM4/M : Large Adjustable Clamping Arm, M4 Threaded Post

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Posted Comments:
Poster: jlow
Posted Date: 2014-11-18 09:26:16.0
Response from Jeremy at Thorlabs: We will contact you directly for a quote.
Poster: aurelie.jost
Posted Date: 2014-11-18 12:47:38.383
Hello, I would like to know if it is possible to purchase the KM200B/M without mounting plate. Also, the screws that hold the mounting plate to the rest of the component seem to be imperial (4-40): is it possible to replace with metric screws? Many thanks for your advice.
Poster: jjurado
Posted Date: 2011-06-14 10:28:00.0
Response from Javier at Thorlabs to last poster: Thank you very much for your feedback. We round the metric units in our reference pdf drawings to the nearest mm in order to maintain the presentation a bit cleaner. However, I will discuss your suggestion with our mechanics design engineers so that perhaps a change is implemented in the future. Please contact us at techsupport@thorlabs.com if you have any further questions or comments.
Poster:
Posted Date: 2011-05-26 10:32:39.0
KM200B/M AutoCAD PDF rounds the metric dimensions to the nearest mm (two significant digits), while the SW file shows the correct dimensions in inches (with three significant digits). It makes sense to retain the same number of significant digits when converting to/from metric.
Poster: bdada
Posted Date: 2011-04-13 16:05:00.0
Response from Buki at Thorlabs: We can offer a shorter spring assembly for this particular application on a custom basis. This would be comparable to offering a spring with a higher spring constant. We have contacted you directly to discuss this option.
Poster: gisi
Posted Date: 2011-04-13 14:46:06.0
Hi We also have the problem, that the springs are not strong enough. Do you have stronger springs available?
Poster: tor
Posted Date: 2010-11-23 08:53:15.0
A response from Tor at Thorlabs to Will: The KM100B is designed to mount standard 1” optics. I will contact you directly for more details in order to identify a more suitable solution for your application.
Poster: wgrigsby
Posted Date: 2010-11-22 23:35:27.0
We currently have this mount, but the springs are not strong enough to support my attached optic. Do you have stiffer springs available? If not, can you let me know the specifications (length, diam, wire size, etc) of the springs that are currently used so that I can order stiffer springs elsewhere? Thank you for your help. -Will
Poster: Greg
Posted Date: 2010-03-23 09:56:41.0
A web update from Greg at Thorlabs in response to Blairs question: I have added dimensioned drawings of the KM100x and KM200x to this web page. These drawings show the location and threading of the holes used to connect the mounting platforms to the kinematic mount.
Poster: apalmentieri
Posted Date: 2010-03-02 09:38:36.0
A response from Adam at Thorlabs to Blair: The four screws used for mounting the plate to the kinematic platform are #4-40 screws. It sounds like you already have a custom adapter plate, but if you need this manufactured please let us know as we do custom manufacturing as well. I will contact you directly to get more information.
Poster: blair
Posted Date: 2010-03-02 05:07:58.0
I plan on using this mount but removing the plate and adding my own custom adapter plate. What four screws do you use for mounting the plate to kinematic movement? Are they #4-40 or are they M3? Thanks, Blair
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dove prism   kinematic mounting platform   kinematic platform mount   kinematic prism mount   optical mount   pitch yaw platform   prism   prism holder   prism mount   Prism Mounting Attachment   right angle prism   table   tip tilt platform  

Kinematic Platform Mounts

KM200B Kinematic Platform Mount
Click to Enlarge

KM200B Mounted on Ø1/2" Post Using an 8-32 Cap Screw
  • Two 80 TPI Adjusters for Fine Tip and Tilt Control
  • Oriented Horizontally or Vertically
  • Designed for Use with Clamping Arms (Sold Below)
  • Removable Knobs Expose Lead Screws with Hex Socket

Thorlabs' KM100B(/M) and KM200B(/M) Kinematic Platform Mounts provide kinematic control for prisms and non-standard optics. Each contains several 6-32 (M4) tapped holes for mounting our PM3(/M) or PM4(/M) Clamping Arms (sold below). The design used in the KM100B(/M) and KM200B(/M) offers an unobstructed path from any direction by positioning the knobs below the mounting plane, as shown in the photo to the right.

The KM100B(/M) is a 2" x 2" (52 mm x 52 mm) mount with ±4° of pitch and yaw control, while the KM200B(/M) is a 3" x 3" (77 mm x 77 mm) mount with ±3° of pitch and yaw control. The KM200B(/M) additionally contains five 1/4"-20 (M6) tapped holes and four #8 (M4) counterbores that provide direct mechanical compatibility with standard optomechanics.

The mounting plate is attached using four 4-40 screws and can be replaced to create a custom kinematic mount.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
KM100B Support Documentation
KM100B 2" x 2" Kinematic Platform Mount
$53.04
Today
KM200B Support Documentation
KM200B 3" x 3" Kinematic Platform Mount
$91.29
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KM100B/M Support Documentation
KM100B/M 52 mm x 52 mm Kinematic Platform Mount
$53.04
Today
KM200B/M Support Documentation
KM200B/M 77 mm x 77 mm Kinematic Platform Mount
$91.29
Today

Kinematic Prism Mount

  • Two 80 TPI Adjusters for ±4° of Fine Tip and Tilt Control with an Adjustment per Revolution of 8 mrad/rev
  • Platform can be Removed and Secured to Either Arm Enabling Left- or Right-Handed Configuration
  • Designed for Use with Clamping Arms (Sold Below)
  • Removable Knobs Expose Lead Screws with Hex Socket

Thorlabs' KM100PM(/M) Kinematic Prism Mount provides kinematic control for prisms, cube beamsplitters, corner cubes, and other optics that require tip and tilt control. It contains eight 6-32 (M4) tapped holes for mounting our PM3(/M) or PM4(/M) Clamping Arms (sold below). The design used in the KM100PM(/M) orients the knobs in the usual vertical plane.

The two-piece mounting platform assembly is secured to the front plate using two 4-40 screws (3/32 hex), allowing for a left- or right-handed kinematic mount. The two pieces of the mounting platform assembly are held together with two 3-48 screws [5/64 (2 mm) hex]. The animation to the right shows how to convert between the left- and right-handed orientations. If desired, the mounting plate can also be removed and replaced with a user-supplied alternative, enabling custom mounting options.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
KM100PM Support Documentation
KM100PM Kinematic Prism Mount, Eight 6-32 Taps
$70.38
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
KM100PM/M Support Documentation
KM100PM/M Kinematic Prism Mount, Eight M4 Taps
$70.38
Today

Clamping Arms

  • Provides Clamping Force for Our Platform Mounts
  • Stackable 6-32 (M4) Threads on Top and Bottom of Post
  • PM3(/M): Holds Optics up to 0.97" (24.6 mm) Tall
  • PM4(/M): Holds Optics up to 1.61" (40.9 mm) Tall

Thorlabs' PM3(/M) and PM4(/M) Clamping Arms use a nylon-tipped setscrew to secure an optic to our KM100B(/M), KM200B(/M), or KM100PM(/M) Kinematic Platform Mounts. The PM3(/M) accommodates optics as tall as 0.97" (24.6 mm) and features a 0.69" (17.5 mm) long clamping arm. In contrast, the PM4(/M) accommodates optics as tall as 1.61" (40.9 mm) and features a 1.16" (29.3 mm) long clamping arm.

The clamping arm is held to the post using a flexure mechanism that locks with a 5/64" (2 mm) balldriver or hex key. The post includes a Ø0.09" (Ø2.3 mm) through hole that provides added torque when tightening the post to the mounting plate.

The PM3(/M) clamping arm can be used to hold 1" (25.4 mm) tall optics with the addition of a second post. Without the second post, the top surface of the clamping arm will be positioned above the top of the post, causing less-than-full engagement of the flexure mechanism.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
PM3 Support Documentation
PM3 Small Adjustable Clamping Arm, 6-32 Threaded Post
$18.00
Today
PM4 Support Documentation
PM4 Large Adjustable Clamping Arm, 6-32 Threaded Post
$22.00
Today
+1 Qty Docs Part Number - Metric Price Available / Ships
PM3/M Support Documentation
PM3/M Small Adjustable Clamping Arm, M4 Threaded Post
$18.00
Today
PM4/M Support Documentation
PM4/M Large Adjustable Clamping Arm, M4 Threaded Post
$22.00
Today
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