Aperture, Inc. National Aperture, Inc.
MM-3M-ST Standard
Motorized MicroMini™ Stage
our Least Expensive Motor Stage,
with Spring Preloaded Slider and 12mm (1/2 inch)Travel


Miniature Positioning Components for Industry and Laboratory
Including Fiber (Fibre) Optical Alignment Systems
Features:
  • Low Cost
  • Low Profile
  • Anti-backlash
  • Ultra-lightweight
  • Thru-hole Slider
  • 10mm DC Servo Motor w/10 position Encoder
  • Available in X, XY Configurations
  • Ideal for General Purpose Applications
Specifications:
 
Travel: 0.5 inch (12.7 mm)
Speed (max.): 4mm /sec with 64:1 gearhead
Runout: 0.002mm
Screw pitch: 80 TPI
*Repeatability: +/- 0.002mm
*Accuracy (linearity) : +/- 0.003mm
Resolution: 0.12406µm per count, with 64:1 gear
Slider backlash: 0 (spring preloaded)
Gearhead backlash: 1 - 2 µm equivalent (can be compensated in software without overshoot)
Wobble (max): 0.02mrad (~4 arc-sec.)(No ball bearings)
Gearhead: 64:1 standard; optional 16:1, 256:1, 1024:1 - interchangeable
Thermal stability(deg. C): 15 to 75
Motor: 10 mm dia., 6-12 VDC servo, brush type (see Motor Specifications)
Vacuum Compatibility: 10-3 Torr, standard, higher per request.
*Encoder resolution must be added based on the gearhead: 16:1 add ±0.0005mm, 64:1 add ±0.00012mm
 
Load Capacity: ( These stages may be run at twice the specified ratings without damage, but with a loss of accuracy and speed.)
Direct top or side load: 0.34 kg
Push: 0.5 kg
Retract force: 2 oz - 24 oz (extension - compression, limited by the preload spring)
Tilt: 6 in.-oz (420g-cm)
Twist: 3 in.-oz (210g-cm)
 
 
Resolution Data Linear Motion:
Link to Connection Specifications for 10mm motor
Link to Resolution Data Sheet for 10 position encoder, 80 TPI leadscrew, 6v HT motor
Link to Resolution Data Sheet for 10 position encoder, 40 TPI leadscrew, 6v HT motor
Link to Resolution Data Sheet for 10 position encoder, 80 TPI leadscrew, 6v motor
Link to Resolution Data Sheet for 12 position encoder, 80 TPI leadscrew, 6v HT motor

MM-3M-ST
Gearhead Ratio Resolution1 Max Travel Rate2
µ-inch / count µm / count Inch/sec mm/sec
16:1 19.5313 0.4960 0.260 6.60
64:1 4.8828 0.1240 0.064 1.65
256:1 1.2207 0.0310 0.016 0.41
1024:1 0.3052 0.0077 0.004 0.10
Notes:
1) The lead values shown above in both travel rate and resolution calculations, are for 80 (1/80) Thread per Inch (TPI) leadscrews. For a 40 TPI leadscrew, substitute 0.025 inch lead.
2) Max travel rate calculated with motor armature running at a maximum speed of 20,000 RPM
3)The 10mm motors used with both the rotary and linear stages incorporate dual channel, 10 position, magnetic encoders. The resultant quadrature output is equal to 40 encoder counts per motor armature revolution.
 
 
Travel rate calculations:
Output Shaft RPM = RPM of motor / Gearhead Ratio
Distance per minute = Output shaft RPM x Lead (0.0125 in, 0.3175mm)
Distance per second = Distance per minute / 60
Distance in millimeters = inch/39.37 X 10-3
Distance in microns = inch/39.37 x 10-6
 
 
Encoder resolution calculations:
Encoder counts per shaft revolution = 40 encoder counts x gearhead ratio
Minimum encoder count (inches) = Lead (0.0125 inch) / Encoder counts per output shaft revolution
Minimum encoder count (millimeters) = Minimum encoder count (inch)/39.27 x 10-3
Minimum encoder count (micrometers) = Minimum encoder count (inch)/39.37 X 10-6
 
 
Converson:
1 inch (in.) = 25.4 mm
1 inch (in.) =25,400µm
1 millimeter (mm) = 39.37 x 10-3 inch
1 micrometer (µm) = 39.37 x 10-6 inch
1 degree (deg) = 3,600 arc-sec
1 arc-sec = 0.277 x 10-3 degree
Link to Connection Specifications for 10mm motor
PART# TRAVEL STAGE BODY (L x W x H) WEIGHT PRICE
MM-3M-ST 0.5 inch (12.7 mm) 4.48 x 0.75 x 0.36 (inch)
113.8 x 19.05 x 9.14 (mm)
50g $995.00
MM-3M-ST-XY 0.5 inch (12.7 mm) XY     $2,020.00
Overall Stage Length: 4.23 inch, nominal; 4.48 inch extended length
Motor travels along with slider position, (motor moves with carriage during translation)
thru hole is tapped 5/16-24 for optional accessories such as PINHOLE ADAPTER and OBJECTIVE ADAPTER
Note: Price includes mounting hardware.
The information contained in this data sheet is subject to change without notice.
Critical dimensions or specifications should be verified with our technical support staff.
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National Aperture, Inc. ©Copyright 1996-2010 National Aperture, Inc. - All Rights Reserved
MicroMini ™ Stage is a trademark of National Aperture, Inc.
National Aperture, Inc. • 16 Northwestern Drive • Salem, NH 03079-4810
800-360-4598 • 603-893-7393 • FAX 603-893-7857