ZABER LMR39 Rotary Positioning Step 0.015 /step 3.8V 670MA 12608

( Brand: Zaber ), ( Manufacturer Part Number: LMR39 ), ( Type: Rotary Stage )

Review ZABER Rotary Positioning Stage 0.015 /step 3.8v 670ma Serial

The **Zaber LMR39 Rotary Positioning Stage** is a high-precision, compact, and versatile motion control solution designed for applications requiring fine angular positioning with exceptional repeatability and reliability. Part of Zaber s renowned line of motorized stages, this model combines a robust **3-phase brushless DC motor** with a **geared transmission system** to deliver smooth, accurate, and repeatable rotational movement, making it ideal for research, automation, industrial inspection, and custom instrumentation. With a **minimum incremental step size of 0.015 degrees per step**, the LMR39 provides unparalleled granularity, allowing for precise adjustments in applications such as optical alignment, sample rotation in microscopy, robotic arm calibration, or automated testing systems. The motor operates at a nominal voltage of **3.8V**, ensuring compatibility with low-voltage power supplies while maintaining efficient performance, while its **670mA current draw** strikes a balance between power delivery and energy efficiency, reducing heat generation and extending component lifespan.

The stage s **12,608-step full rotation** (360 ) capability derived from a **12:1 gear reduction ratio** enables seamless integration into systems requiring either coarse or fine adjustments, depending on the application s demands. The compact yet sturdy **aluminum housing** and **precision-machined components** ensure minimal backlash and vibration, contributing to stable performance even under dynamic loading conditions. The LMR39 is equipped with **Zaber s proprietary motion control technology**, which integrates seamlessly with the company s **X-Link** communication protocol, enabling effortless connection to PCs, embedded systems, or field-programmable gate arrays (FPGAs) via USB, Ethernet, or RS-232 interfaces. This flexibility allows for real-time control, scripting, and automation, making it suitable for both standalone operation and complex, multi-axis motion sequences.

Beyond its technical specifications, the LMR39 stands out for its **user-friendly design and ease of integration**. Zaber s intuitive **X-Motion software** simplifies setup, calibration, and operation, offering a graphical interface for step-by-step control, velocity, acceleration, and position feedback. The stage s **non-cumulative positioning error** ensures consistent accuracy over extended periods, while its **low-profile mounting options** including a **1/4-inch threaded hole** and **customizable flange adapters** allow for seamless incorporation into existing setups without sacrificing stability. Whether used in a laboratory for precise sample manipulation, in an industrial environment for automated inspection, or in a robotic platform for dynamic positioning tasks, the LMR39 delivers a harmonious blend of **precision, reliability, and adaptability**, making it a standout choice for engineers and researchers demanding high-performance rotational motion control.

**Pros and Cons of buying a Zaber LMR39 Rotary Positioning Stage**

### **Pros**

1. **High Precision** The stage offers a resolution of 0.015 degrees per step, making it suitable for applications requiring fine angular control, such as microscopy, automation, or calibration tasks.

2. **Compact and Lightweight Design** The 12608 series is relatively small and portable, which is advantageous for lab or industrial setups where space is limited.

3. **Integrated Motor and Encoder** The built-in 3.8V stepper motor and encoder eliminate the need for external drivers or feedback sensors, simplifying installation and reducing wiring complexity.

4. **High Torque-to-Size Ratio** The 670 mA current rating suggests sufficient torque for many precision applications, though exact performance depends on load conditions.

5. **Compatibility with Zaber s Easyspace Software** Zaber s proprietary software allows for easy integration with PCs, enabling automated positioning, scripting, and real-time monitoring.

6. **Modular and Plug-and-Play** The stage can be easily mounted on optical tables or other platforms, and its stepper motor interface is compatible with standard drivers (e.g., Zaber s EasyDriver or third-party options).

7. **Good for Research and Prototyping** Its precision and ease of use make it a strong choice for academic or R&D environments where flexibility is key.

8. **Low Maintenance** Stepper motors require minimal upkeep compared to servo systems, reducing long-term operational costs.

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### **Cons**

1. **Limited Torque for Heavy Loads** At 670 mA, the motor may struggle with high-inertia or high-friction loads, requiring careful selection of the driver s current settings to avoid stalling.

2. **Stepper Motor Limitations** Unlike servo systems, steppers lack closed-loop feedback in basic configurations, meaning they can lose position if power is interrupted or if the load exceeds torque limits.

3. **Higher Cost Relative to Basic Alternatives** While not excessively expensive, it may be pricier than simpler rotary stages or DIY solutions for less demanding applications.

4. **Driver Dependency** Performance heavily relies on the quality of the connected driver (e.g., Zaber s EasyDriver or a third-party equivalent). Poorly matched drivers can lead to overheating or inaccurate movement.

5. **No Built-in Limit Switches** Unlike some commercial stages, this model does not include hard stops or limit switches, which could be a drawback for unsupervised or high-speed applications.

6. **Potential for Microstepping Artifacts** At very high resolutions (e.g., 1/16 or 1/32 microstepping), stepper motors can exhibit jitter or vibration, which may affect precision in sensitive applications.

7. **Limited Customization** The stage s design is fixed, so users cannot modify gear ratios, backlash, or other mechanical parameters without additional components.

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### **Conclusion and Recommendation**

The **Zaber LMR39** is an excellent choice for applications requiring **high-precision rotary positioning in a compact form factor**, particularly in research, automation, or optical alignment tasks where ease of use and integration matter. Its **0.015 resolution, integrated feedback, and compatibility with Zaber s software** make it a strong option for users who prioritize accuracy and simplicity.

However, if the application involves **heavy loads, high-speed continuous rotation, or unsupervised operation**, a **servo-based rotary stage with closed-loop control** (e.g., Thorlabs KRS series or Newport s URM series) may be more robust. For **budget-conscious users**, simpler stepper-based stages or DIY solutions might suffice if precision requirements are less stringent.

- You need **fine angular control** (sub-degree precision).

- You prefer a **plug-and-play solution** with software integration.

- Your loads are **moderate** and the motor s torque is sufficient for your driver settings.

- You value **compactness and ease of mounting**.

- You require **high torque for heavy or dynamic loads**.

- You need **closed-loop feedback for absolute positioning**.

- Your budget allows for **more advanced servo-based alternatives**.

Details:

Zaber LMR39 Rotary Positioning Stage 0.015 /step 3.8V 670mA Serial 12608, AA22 12608.

part #: lmr39 price

• $569.00

specifications linactuat:

• brand: Zaber
• mpn: Lmr39
• type: Rotary Stage

general linactuat:

• Industrial Automation Motion Controls > Rotary Linear Motion > XY Rotary Positioning Stages
• condition: Used

seller linactuat:

• # reviews: 207
• city: Burnsville, Minnesota
• rating: 100.0%

offer linactuat:

• sold: 0
• quantity: 1
• availability: In Stock
• options: Ship-to-home
• best offers: True
• started: April 5, 2026

returns linactuat:

• time: 30 Days
• policy: Returns Accepted
• method: Money back
• paid by: Buyer

payments linactuat:

• money order
• credit card: Mastercard
• wallet: Paypal
• other

shipping linactuat:

• cost: $5.39
• service: USPS Ground Advantage
• transit: 4-7 Days
• type: Calculated
• carrier: USPS
• class: Standard

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