MM-3M-R Rotary Motorized MicroMini™ Stage
Miniature Positioning Components for Industry and Laboratory including Optical Alignment Systems
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Features:
Low profile Light weight Limit Switches 1 inch diameter table Interchangeable gearheads 10mm DC Servo Motor w/10 position encoder 10 position Magnetic Encoder
Special Features:
Dual class 7 custom bearings for ultra-low axial/ angular runout Multi-faceted connection interface Many other gearhead options, easy change Homing switch
Download a PDF version of the Stage Catalog Download a PDF version of the MM-3M-R page from the NAI Catalog
Specifications:     MM-3M-R MM-3M-RA MM-3M-RA+ Repeatability: 15 arc-sec* same same Homing repeatability: 60 arc-sec* same same Accuracy: (linearity) 80 arc-sec* same same See diagram for an illustration of A, B, C, D A. Axial Wobble (axial angular long range repeatability) 60 arc-sec 2 arc-sec 2 arc-sec B. Axial Angular Deviation 60 arc-sec 60 arc-sec 2 arc-sec C. Planar shift, total 1.2 µm 0 0 D. Eccentricity (runout including bearing mount) 3 µm 3 µm 3 µm   Direct Top Load: 2 kg axial 0.5 kg axial 0.5 kg axial Tilt Load: 5 kg - cm (70 in. - oz) 1.0 kg - cm (14 in. - oz) 1.0 kg - cm (14 in. - oz) Torque Load: 850 g - cm (12 in. - oz) 425 g - cm (6 in. - oz) 425 g - cm (6 in. - oz) Gearhead ratio: 64:1 (standard) 16:1 same same Speed: (low load) 4 RPM 16 RPM** same same Encoder Conversion: (arc-sec/count) 6.3281 25.3124 same same Gearhead Backlash: ~1 mrad‹ ~4 mrad‹ same same Rotor Stall Torque: 200 in.-oz‹‹ 50 in.-oz‹‹ same same Rotor backlash: (preloaded) 0 same same Weight: 76 grams same same Vacuum Compatibility: 10-3 Torr standard, higher per request same same Worm ratio: 80:1 same same Travel Range: unlimited same same Stage Body Dimensions: (L x W x H) 2.86 x 1.43 x 0.59 (inch) 72.64 x 36.32 x 15 (mm) same same Motor: 10mm diameter, 6-12 VDC servo, brush type *Encoder resolution must be added based on the gearhead: 64:1 add ±12 arc-sec, 256:1 add ±3 arc-sec 1024:1 ±0.75 arc-sec (all approximated) **A lower gear means a lower speed. Higher speeds (lower ratio) can be used, but at the expense of resolution and load/torque capacity. ‹Dependent on gear ratio, and can be compensated in software without overshoot. ‹‹Dependent on gear ratio and worm ratio. Note: The MM-3M stages are designed for peak performance at low loads: ex; 60g, less than 2 inches off axis.   Diagram
	Description MM-3M-R MM-3M-RA MM-3M-RA+ A. Axial Wobble (axial angular long range repeatability) 60 arc-sec 2 arc-sec 2 arc-sec B. Axial Angular Deviation 60 arc-sec 60 arc-sec 2 arc-sec C. Planar shift, total 1.2 µm 0 0 D. Eccentricity (runout including bearing mount) 3 µm 3 µm 3 µm Direct Top Load: 2 kg axial 0.5 kg axial 0.5 kg axial Tilt Load: 5 kg - cm (70 in. - oz) 1.0 kg - cm (14 in. - oz) 1.0 kg - cm (14 in. - oz)
Resolution Data Rotary Motion: Link to Connection Specifications for 10mm motor MM-3M-R 80:1 Worm drive Ratio Gearhead Final Resolution1 Max Travel Rate2 Ratio Output Deg. / per count arc-sec/ per count Deg/sec 16:1 1,280:1 0.00703125 25.3125 93.74 64:1 5,120:1 0.00175781 6.3281 23.44 256:1 20,480:1 0.00043945 1.5820 5.86 1024:1 81,920:1 0.00010986 0.39950 1.46 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 micrometers = 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 in.) / 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
Conversion 1 inch (in.) = 25.4 mm 1 inch (in.) =25,400µm 1 millimeter (mm) = 39.37 x 10-3in. 1 micron (µm) = 39.37 x 10-6 in. 1 degree (deg) = 3,600 arc-sec 1 arc-sec = 0.277 x 10-3 deg Link to Connection Specifications for 10mm motor
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PRICING: PART# TRAVEL STAGE BODY (L x W x H) PRICE MM-3M-R unlimited 2.86 x 1.43 x 0.59 (inch) 72.64 x 36.32 x 15 (mm) $2100.00 MM-3M-RA unlimited 2.86 x 1.43 x 0.59 (inch) 72.64 x 36.32 x 15 (mm) $1930.00 MM-3M-RA+ unlimited 2.86 x 1.43 x 0.59 (inch) 72.64 x 36.32 x 15 (mm) $2170.00 For our International Customers we have 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