Rotary Micro Stages

M3-RS Rotary Smart Stage with embedded controller

New Scale rotary micro stages and positioning modules feature our patented piezoelectric motors along with integrated position sensors, bearings, drive electronics and embedded firmware.

These “smart stages” have all electronics integrated into the compact rotary micro stage – no external controller required. Along with smallest system size, this makes for fastest, easiest integration into your handheld and portable systems.

High precision, smallest size and unmatched ease of use

M3-RS-U Rotary Smart Stage: Rotary micro stage with built-in closed-loop controller is the easy, all-in-on solution for embedded micro motion.


  • Smallest size: < 12 mm diameter including controller
  • Closed-loop controller embedded in micro stage
    no separate controller needed
  • 3.3 VDC input
  • Direct input of motion commands (I2C, SPI, UART or analog servo)
  • Angular resolution 0.025 deg (440 µrad) closed loop
    – built-in absolute position sensor
  • Angular resolution 0.0057 deg (100 µrad) open loop
    with external position sensor provided by user
  • Absolute encoding and position feedback
  • Holds position with zero power and no jitter
  • Fast integration for embedded motion in smaller instruments


Beam steering and mirror positioning applications requiring precise, point-to-point positioning or dynamic scanning up to 100 Hz.


  • Dermatology lasers
  • Fluorescence microscopes
  • 3D imaging instruments
  • In-vivo and in-vitro micro laser surgery


  • 3D printers
  • LIDAR, 3D measurement, spectroscopy
  • Remote sensing (e.g. pollution sources)
  • Image and hand tremor stabilization
  • Laser marking, engraving, machining


  • Free-space optical communication
  • Variable optical attenuation
  • Fiber-to-fiber optical switching

Aerospace and Defense

  • Target designation, jitter compensation
  • Automated obstacle detection, tracking and avoidance for robots, UAVs, etc.

Developer’s Kits

Developer’s Kits for Rotary Positioning

The M3-RS-U-360 Rotary Smart Stage offers precise, point-to-point positioning or dynamic scanning up to 100 Hz.The rotary microstage in this kit offers continuous 360 degree rotation at up to 1100 degrees per second with accuracy of 0.25 degrees.


Developer’s kit: Rotary Microstage

  • One M3-RS-U-360 Rotary Smart Stage Positioning Module with embedded controller and straight FPC
  • Breakout board
  • USB adapter
  • New Scale Pathway™ Software


All Developer’s Kits include New Scale Pathway™ software, a powerful development tool that lets you easily evaluate the micro stages and validate your embedded software.

Developer’s Kits for Beam Steering and Mirror Positioning

M3-RS-U Rotary Smart Stages are ideal for beam steering and mirror positioning applications requiring precise, point-to-point positioning or dynamic scanning up to 100 Hz. These beam steering developer’s kits include mounted aluminum-coated mirrors with limit stops, for motion of  +/- 20 degrees at up to 1100 degrees per second with accuracy of 0.25 degrees


Developer’s kit: Single-axis mirror positioning system

  • One M3-RS-U-360 Rotary Smart Stage Positioning Module with embedded controller and straight FPC
  • One M3-RS-U-Mirror-01-03, mounted to stage
  • Base
  • Breakout board for testing and USB connection
  • Cables and USB adaptor for PC control
  • New Scale Pathway™ Software


Developer’s kit: Two-axis, two-mirror beam steering system

  • Two M3-RS-U-360 Rotary Smart Stage Positioning Modules with embedded controllers and straight FPC
  • One M3-RS-U-Mirror-01-03, mounted to stage
  • One M3-RS-U-Mirror-01-11, mounted to stage
  • One 650nm collimated laser
  • Base
  • Demo board and cables for testing and USB connection
  • Power supply
  • New Scale Pathway™ Software

Optional Components for Developer’s Kits

Each stage in the kit includes an attached flexible printed circuit (FPC) cable. You may purchase cables in other lengths, with straight or 90-degree exit angles. Beam steering kits include a mounted mirror, pre-attached to each stage. You may order additional mounted mirrors if desired. Tools to attach the mounted mirrors to the stage are included in the kit.

Model Description
M3-RS-U-360 Rotary Microstage Positioning Module
M3-RS-U-Mirror-01-03 Mounted mirror, 3 x 5 x 0.4 mm
Inertia 0.50 g-mm²
Standard mirror, one included with one-axis or two-axis kit
M3-RS-U-Mirror-01-11 Mounted mirror, 11 x 5 x 0.4 mm
Inertia 0.60 g-mm²
Standard mirror, one included with two-axis kit only
M3-RS-U-FPC-0-150 FPC cable with straight exit from stage
150 mm length (standard cable, one included with stage)

Contact Us to purchase optional components.

M3-RS-U-360 Rotary Microstage

The M3-RS-U Rotary Smart Stage Positioning Module is also available separately, without mirror or accessories. The micro stage has a continuous 360° rotation without the mirror mount limit stops used in the Beam Steering Developer’s Kits.

At only 12 mm in diameter including the embedded controller, this micro stage is ideal for scientific and industrial applications requiring precise rotational positioning in a limited space. Applications include optical tuning with gratings or filters, and sample alignment.

Contact New Scale for volume pricing.

Download the data sheet with drawings Download the CAD file


Performance for M3-RS-U Smart Stage with standard 3-mm long mounted mirror

Beam diameter (max)  2 mm
Range of motion +/- 20 degrees (continuous 360 degree motion without mirror stops)
Speed  >1100 deg/sec
Acceleration >1,000,000 deg/sec² (note 1)
Stall torque (min) 0.04 N-mm
Holding torque (min) 0.08 N-mm (zero power)
Recommended maximum payload mounted to rotating shaft (payload must be balanced) 
Mass 3 g
Inertia 350 g-mm²
CLOSED-LOOP performance (with built-in position sensor)
Recommended step frequency up to 100 Hz
Resolution (encoder resolution) 0.025 deg (440 µrad) absolute
Repeatability +/- 0.05 deg (880 µrad)
Accuracy  0.25 deg (4400 µrad)
Maximum closed loop step & settle times (note 1)  0.5 deg step: 9 ms
5 deg step: 14 ms
20 deg step: 21 ms
OPEN-LOOP performance (external position sensor provided by user – see application note
Resolution  <0.0057 deg (<100 µrad)
Accuracy Typically better than 10% of distance travelled after calibration
Maximum open loop step times (note 1) 0.05 deg step: 0.5 ms
0.5 deg step: 1.6 ms
5 deg step: 6 ms
20 deg step: 10 ms
Input voltage 3.3 VDC
Power consumption (typical) 
 input directly to stage
500 mW active, moving
190 mW active, ready
 50 mW standby
Power consumption (typical) 
 input via USB interface
BREAK-OUT BOARD (one-axis developer's kit)
675 mW active, moving
365 mW active, ready
150 mW standby

DEMO BOARD (two-axis developer's kit)
1200 mW active, both axes moving
580 mW active, ready
200 mW standby
Stage mass  3 g
Operational lifetime  100 million random positions
Temperature and relative humidity  0 to +60 °C, non-condensing 
Conformance  CE / RoHS
Controller Integrated into stage, 64 MIPS
no external controller needed
Communication interface I²C, SPI, UART or analog servo
Input directly to M3-RS

Note 1:  With 0.99 g-mm2 inertial load of standard mounted mirror M3-RS-U-Mirror-01-11
Internal Stage …..0.39 g-mm2
Mirror Clamp …… 0.45 g-mm2
Mirror ………… 0.15 g-mm2
Total Inertia…… 0.99 g-mm2

Standard Mirror (included in the Beam Steering Developer’s Kits)

Size – M3-RS-U-Mirror-01-03 (included in both dev kits) 3 x 5 x 0.4 mm
Size – M3-RS-U-Mirror-01-11 (included in two-axis dev kit only) 11 x 5 x 0.4 mm
Material float glass
Coating protected aluminum (MgF2)
Operational bandwidth 0.350 – 4.0 μm
R(avg) reflectivity (0.350 – 4.0 μm)  90%
Max beam diameter 2 mm
Flatness (632 nm)  lambda/4 over any 2 mm length
Surface quality  60 – 40 scratch / dig
CW damage threshold (4 μm) 6 W/cm²
Pulsed damage threshold (1 μsec pulses, 35 nm, 20 Hz) 0.3 J/cm²

Review the M3-RS

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The M3 Smart Module Platform

M3 Smart Modules integrate a piezoelectric SQUIGGLE® micro motor, precision mechanical guide system, position sensor, microprocessor, and drive electronics into one tiny package. Eliminating the need for external controllers, they offer the smallest system size and easiest integration into OEM systems.

Learn more about the M3 Platform

Custom Engineering

We use our configurable M3 Smart Module platform to develop custom motion modules and systems that meet your exact requirements. We also develop full-custom micro motion systems. Ask us about a motion system feasibility study, the first step to faster, lower-risk product development.

Learn more about custom motion engineering services