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50 mm Linear Translation Stage, Direct-Drive Servo Motor
Controller for the DDSM50(/M)
Thorlabs' DDSM50 low-profile, direct-drive stage provides 50 mm of travel with 0.5 µm resolution and a maximum speed of 500 mm/s. The stage is ideal for applications that require high speeds and high positioning accuracy, including automated alignment, surface inspection, mapping, and probing.
An innovative, low-profile design with integrated, brushless linear motors eliminates the external housings that create mechanical clash points and impede access to the moving platform. The direct-drive technology removes the need for a lead screw, eliminating backlash, and internal flexible ducting ensures cables cannot become trapped as the mechanism moves. A precision-grooved linear bearing provides superior rigidity and linearity with excellent on-axis accuracy. This backlash-free operation coupled with high-resolution, closed-loop optical feedback ensures a minimal bidirectional repeatability of 1.5 μm.
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Two DDSM50 Stages can be Connected in an XY Configuration Using the DDSMP1 XY Adapter Plate
Adapter brackets are also available that allow optomechanical components to be mounted close to the linear travel of the stage in applications such as a delay line.
Please Note: Magnetic components should not be mounted to the stage platform. Magnets prevent proper homing and can affect the accuracy of the stage's encoder even after the magnetic component has been removed. When no power is applied, the platform of the stage has very little inertia and is virtually free running. This may make the stage unsuitable for applications where the stage's platform needs to remain in a set position when power is off.
Motor Control Connector
Characterized by high-speed translation and high-positional accuracy, the DDSM50 stage is well-suited for surface mapping and characterization applications where there is a need to move a camera or probe at constant velocity while simultaneously capturing data. Very precise, fine positioning and control is easily achieved through a combination of the stable closed-loop control system and a KBD101 controller.
Please Note: Magnetic components should not be mounted to the stage platform. Magnets prevent proper homing and can affect the accuracy of the stage's encoder even after the magnetic component has been removed. These stages are not suitable for operation in a vertical (Z-axis) orientation. When no power is applied, the platform of the stage has very little inertia and is virtually free running. This may make the stage unsuitable for applications where the stage's platform needs to remain in a set position when power is off.
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Optomechanical Components can be Mounted Next to the Travel Range of the DDSM50 Stage Using DDSMA1 and DDSMA2 Adapter Plates
For 2-axis applications, two DDSM50 stages can be bolted together in an XY configuration using the DDSMP1 adapter plate as shown above in the Overview tab.
The DDSMA1 and DDSMA2 adapter plates attach to the end of the DDSM50 stage using the two supplied M3 x 20 screws (see image to the right) and allow optomechanical components to be mounted close to the linear travel of the stage in applications such as a delay line. The plates are drilled and tapped with six 1/4”-20 (M6) and five 8-32 (M4) holes.
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KCH601 USB Controller Hub (Sold Separately) with Installed K-Cube and T-Cube™ Modules (T-Cubes shown on the KAP101 Adapter)
Thorlabs' KBD101 K-Cube™ Brushless DC Motor Controller provides local and computerized control of a single motor axis. It features a top-mounted control panel with a velocity wheel that supports four-speed bidirectional control with forward and reverse jogging as well as position presets. A backlit digital display is also included that can have the backlit dimmed or turned off using the the top-panel menu options. The front of the unit contains two bidirectional SMC trigger ports that can be used to read a 5 V external logic signal or output a 5 V logic signal to control external equipment. Each port can be independently configured.
Please note that this controller does not ship with a power supply. Compatible power supplies are listed below. Additional information can be found on the main KBD101 Brushless DC Servo Motor Controller page.
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A location-specific adapter is shipped with the power supply unit based on your location. The adapters for the KPS101 are shown here.
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The KPS101 Power Supply Unit
The KPS101 power supply outputs +15 VDC at up to 2.4 A and can power a single K-Cube or T-Cube with a 3.5 mm jack. It plugs into a standard wall outlet.
The KCH301 and KCH601 USB Controller Hubs each consist of two parts: the hub, which can support up to three (KCH301) or six (KCH601) K-Cubes or T-Cubes, and a power supply that plugs into a standard wall outlet. The hub draws a maximum current of 10 A; please verify that the cubes being used do not require a total current of more than 10 A. In addition, the hub provides USB connectivity to any docked K-Cube or T-Cube through a single USB connection.
For more information on the USB Controller Hubs, see the full web presentation.