Mounting Platforms for 34 mm Rails


  • Dovetail Platforms with 1/4" (M6) Counterbored Holes
  • Mounting Clamp for Direct Compatibility with Rails
  • Mount Optomechanics to 34 mm Rail Systems

XT34D2-50

Mounting Platform

XT34D2-30

Mounting Platform

SH25LP38

Application Idea

Rail-Mounted Periscope
(All Parts Sold Separately)

XT34HP

Mounting Clamp

Related Items


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Dovetail Mounting Platform
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View Imperial Product List
Item #QtyDescription
Imperial Product List
XT34C21Double Dovetail Clamp for 34 mm Rails, 30 mm Long
RSP11Rotation Mount for Ø1" (25.4 mm) Optics, 8-32 Tap
TR31Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 3"
PH21Ø1/2" Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L = 2"
XT34D2-30130 mm Long XT34 Platform with One 1/4" (M6) Counterbore
XT34-200134 mm Construction Rail, L = 200 mm
SH25LP3811/4"-20 Low-Profile Channel Screw, 3/8" Long, 100 Pack
View Metric Product List
Item #QtyDescription
Metric Product List
XT34C21Double Dovetail Clamp for 34 mm Rails, 30 mm Long
RSP1/M1Rotation Mount for Ø1" (25.4 mm) Optics, M4 Tap
TR75/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 75 mm
PH50/M1Ø12.7 mm Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L=50 mm
XT34D2-30130 mm Long XT34 Platform with One 1/4" (M6) Counterbore
XT34-200134 mm Construction Rail, L = 200 mm
SH6M10LP1M6 x 1.0 Low-Profile Channel Screw, 10 mm Long, 100 Pack
Mounting Platform Clamped onto an XT34C2 Clamp and Holding an RSP1 Rotation Mount
XT34 Rail Elevated on Posts
Click to Enlarge
View Imperial Product List
Item #QtyDescription
Imperial Product List
LMR11Lens Mount with Retaining Ring for Ø1" Optics, 8-32 Tap
PH21Ø1/2" Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L = 2"
TR31Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 3"
SH25S03811/4"-20 Stainless Steel Cap Screw, 3/8" Long, 25 Pack
XT34HP1Dovetail Mounting Clamp for 34 mm Rails
XT34-200134 mm Construction Rail, L = 200 mm
View Metric Product List
Item #QtyDescription
Metric Product List
LMR1/M1Lens Mount with Retaining Ring for Ø1" Optics, M4 Tap
PH50/M1Ø12.7 mm Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L=50 mm
TR75/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 75 mm
SH6MS101M6 x 1.0 Stainless Steel Cap Screw, 10 mm Long, 25 Pack
XT34HP/M1Dovetail Mounting Clamp for 34 mm Rails, Metric
XT34-200134 mm Construction Rail, L = 200 mm
XT34HP Mounting a Post Assembly and Lens Mount

Features

  • Provide Compatibility with Common Optomechanics
  • Mounting Platforms and Clamps with Counterbored Holes
  • Conveniently Switch Mounts In and Out of an Optical Path
  • Low-Profile Screws Help Minimize Footprint

Our Mounting Platforms for 34 mm Rails adapt standard optomechanics into a 34 mm rail system. Two options are available: dovetail mounting platforms and mounting clamps.

Mounting Platforms
These platforms fasten to a 34 mm rail by using an XT34 dovetail clamp, as shown in the image below. The XT34D2-30 is a 30 mm long dovetail mounting platform with a single, centered, 1/4" (M6) counterbored hole, appropriate for mounting posts, pedestal posts, or post holders. The XT34D2-50 is a 50 mm long dovetail mounting platform with three counterbored 1/4" (M6) holes, providing additional mounting options. The counterbored holes in these parts accept low-profile cap screws, available below.

Mounting Clamps
Our XT34HP Mounting Clamp has a built-in dovetail clamp for direct compatibility with 34 mm rails. It contains two 1/4" (M6) counterbored holes that can be used to mount posts, pedestal posts, or post holders to the top or side of a 34 mm rail, as shown in the image above. The counterbores in this part accept standard and low-profile cap screws.

Thorlabs offers a wide and growing complement of accessories for 34 mm rails, including clamps and angle brackets, breadboard mounts, rail carriers, mounting platforms, lens tube adapters, and rail joiners. Together with size adapters that incorporate 66 mm and 95 mm rails into an XT34 setup, these tools provide a complete family of rigid, versatile building blocks suited for virtually any optomechanical setup.

XT34 34 mm Optical Rail Accessories
Rails Rail Positioners Angle Clamps and Brackets Breadboard Mounting Size Adapters Rail Joiners Rail Carriers Mounting Platforms Lens Tube Adapter
Rails Rail Platform Positioners Clamps and
Angle Brackets
Breadboard
Mounting
Size Adapters Rail Joiners Rail Carriers Mounting
Platforms
Lens Tube
Adapter

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Dovetail Mounting Platforms for 34 mm Rails

XT34D2-50 Mechanical Drawing
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XT34D2-50 Mechanical Drawing
XT34D2-30 Mechanical Drawing
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XT34D2-30 Mechanical Drawing
Dovetail Mounting Platform
Click to Enlarge
Mounting Platform Cross Section

XT34 Mounting Platforms come in either 30 mm or 50 mm lengths. The 30 mm version (XT34D2-30) holds a single mechanical component, and is perfectly sized to match our XT34C2 Double Dovetail Clamp. In contrast, the 50 mm version (XT34D2-50) can hold up to three mechanical components, and is ideal for situations where optomechanics must be placed in close proximity.

Because the platforms have minimal height, the caps of standard 1/4"-20 or M6 cap screws protrude from the dovetail if they are installed. Thorlabs therefore recommends that low-profile cap screws, which feature a reduced cap height, are used instead. These are offered in both 1/4"-20 and M6 varieties below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
XT34D2-30 Support Documentation
XT34D2-3030 mm Long XT34 Platform with One 1/4" (M6) Counterbore
$14.73
Today
XT34D2-50 Support Documentation
XT34D2-5050 mm Long XT34 Platform with Three 1/4" (M6) Counterbores
$17.82
Today
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Dovetail Mounting Clamp for 34 mm Rails

XT34 Rail Elevated on Posts
Click to Enlarge
View Imperial Product List
Item #QtyDescription
Imperial Product List
LMR11Lens Mount with Retaining Ring for Ø1" Optics, 8-32 Tap
PH21Ø1/2" Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L = 2"
TR31Ø1/2" Optical Post, SS, 8-32 Setscrew, 1/4"-20 Tap, L = 3"
SH25S03811/4"-20 Stainless Steel Cap Screw, 3/8" Long, 25 Pack
XT34HP1Dovetail Mounting Clamp for 34 mm Rails
XT34-200134 mm Construction Rail, L = 200 mm
View Metric Product List
Item #QtyDescription
Metric Product List
LMR1/M1Lens Mount with Retaining Ring for Ø1" Optics, M4 Tap
PH50/M1Ø12.7 mm Post Holder, Spring-Loaded Hex-Locking Thumbscrew, L=50 mm
TR75/M1Ø12.7 mm Optical Post, SS, M4 Setscrew, M6 Tap, L = 75 mm
SH6MS101M6 x 1.0 Stainless Steel Cap Screw, 10 mm Long, 25 Pack
XT34HP/M1Dovetail Mounting Clamp for 34 mm Rails, Metric
XT34-200134 mm Construction Rail, L = 200 mm
XT34HP Fastens to a Rail without Additional Clamps
XT34 Rail Being Positioned
Click to Enlarge
The XT34HP Mounting Clamp can be used to secure a rail to a breadboard or optical table.
  • Two Counterbored Holes for 1/4"-20 (M6) Cap Screws
  • Ideal for Attaching PostsPost Holders, or Pedestal Posts to a 34 mm Rail
  • Slide Along Rail Prior to Lockdown
  • Mount 34 mm Rails to Any Breadboard with 1/4"-20 or M6 Taps
  • 1/4"-20 (M6) Tapped Hole Provides Side Mounting

Our XT34HP Mounting Clamp has a built-in dovetail clamp for direct compatibility with 34 mm rails. It contains two 1/4" (M6) counterbored holes that can be used to mount posts, pedestal posts, or post holders to the top or side of a 34 mm rail, as shown in the image to the right. The counterbores in this part accept standard and low-profile cap screws.

When flipped, the clamp can also be used to secure a 34 mm rail to a breadboard. The spacing between the counterbores, which is either 1" (25.4 mm) or 25 mm, is specifically designed for direct compatibility with either imperial or metric breadboards.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
XT34HP Support Documentation
XT34HPDovetail Mounting Clamp for 34 mm Rails
$62.67
Today
+1 Qty Docs Part Number - Metric Price Available
XT34HP/M Support Documentation
XT34HP/MDovetail Mounting Clamp for 34 mm Rails, Metric
$62.67
Today
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Screws for 34 mm Optical Rails

These 1/4"-20 (M6) screws are used to attach optomechanical components to our XT34 mounting platforms. The low-profile head provides the clearance needed to fasten the mounting platform to an XT34 rail clamp.

Item # Threading Thread Length Hex Head Height Quantity Material
SH25LP38 1/4"-20 0.38" (9.7 mm) 1/8" 0.13" (3.2 mm) 100 Steel,
Black Oxide Finish
SH25LP63 0.63" (15.9 mm) 50
SH6M8LP M6 x 1.0 8 mm (0.31") 4 mm 4 mm (0.16") 50
SH6M10LP 10 mm (0.39") 100
SH6M16LP 16 mm (0.63") 50
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Imperial Price Available
SH25LP38 Support Documentation
SH25LP381/4"-20 Low-Profile Channel Screw, 3/8" Long, 100 Pack
$27.56
Today
SH25LP63 Support Documentation
SH25LP631/4"-20 Low-Profile Channel Screw, 5/8" Long, 50 Pack
$22.02
Today
+1 Qty Docs Part Number - Metric Price Available
SH6M8LP Support Documentation
SH6M8LPM6 x 1.0 Low-Profile Channel Screw, 8 mm Long, 50 Pack
$18.41
Lead Time
SH6M10LP Support Documentation
SH6M10LPM6 x 1.0 Low-Profile Channel Screw, 10 mm Long, 100 Pack
$27.56
Today
SH6M16LP Support Documentation
SH6M16LPM6 x 1.0 Low-Profile Channel Screw, 16 mm Long, 50 Pack
$22.02
Today