MM-3M-ST Standard Motorized MicroMini™ Stage the Least Expensive Motor Stage, with Spring Preloaded Slider and 12mm (1/2 inch)Travel
Miniature Positioning Components for Industry and Laboratory including Optical Alignment Systems
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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
Download a PDF version of the Stage Catalog Download a PDF version of the MM-3M-ST page from the NAI Catalog
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 MM-3M-ST Gearhead Resolution1 Max Travel Rate2 Ratio 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
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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     $2020.00 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. For our International Customers here is a link to Universal Currency Converter
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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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©Copyright 1996-2009 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