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Specifications

 Measuring range Point repeatability1Volume length accuracy2Arm weight
MCAx20+ 2.0 m (6.6 ft.)  0.023 mm (0.0009 in.) ±0.033 mm (±0.0013 in.) 8.2 kg (18.1 lbs)
MCAx25+ 2.5 m (8.2 ft.)  0.027 mm (0.0011 in.) ±0.038 mm (±0.0015 in.) 8.5 kg (18.7 lbs)
MCAx30+ 3.0 m (9.8 ft.)  0.042 mm (0.0017 in.) ±0.058 mm (±0.0023 in.) 8.8 kg (19.4 lbs) 
MCAx35+ 3.5 m (11.5 ft.)  0.055 mm (0.0022 in.)  ±0.081 mm (±0.0032 in.)  9.1 kg (20.1 lbs) 
MCAx40+ 4.0 m (13.1 ft.)  0.067 mm (0.0026 in.)  ±0.098 mm (±0.0039 in.)  9.4 kg (20.7 lbs) 
MCAx45+ 4.5 m (14.8 ft.)  0.084 mm (0.0033 in.)  ±0.119 mm (±0.0047 in.)  9.7 kg (21.4 lbs)
MCAx20 2.0 m (6.6 ft.)  0.044 mm (0.0017 in.)  ±0.061 mm (±0.0024 in.)  7.9 kg (17.4 lbs)
MCAx25 2.5 m (8.2 ft.)  0.049 mm (0.0019 in.)  ±0.069 mm (±0.0027 in.)  8.2 kg (18.1 lbs)  
MCAx30 3.0 m (9.8 ft.)  0.079 mm (0.0031 in.)  ±0.100 mm (±0.0039 in.)  8.5 kg (18.7 lbs)  
MCAx35 3.5 m (11.5 ft.)  0.099 mm (0.0039 in.)  ±0.125 mm (±0.0049 in.)  8.8 kg (19.4 lbs)
MCAx40 4.0 m (13.1 ft.) 0.115 mm (0.0045 in.)  ±0.151 mm (±0.0059 in.)  9.1 kg (20.1 lbs) 
MCAx45 4.5 m (14.8 ft.)  0.141 mm (0.0056 in.)  ±0.179 mm (±0.0070 in.)  9.4 kg (20.7 lbs)

1The Point Repeatability Test(or SPAT) is the reference test to determine measurement arm repeatability with ball probe. The cone is in front of the machine. Points are measured from multiple approach directions. The average point and the deviation of each point to the average center are calculated. The result is the maximum range divided by two.
The published value is the pass-off specification for: ASME B89.4.22 SPAT and VDI/VDE 2617-9 Sphere form (MPEPF) & Sphere position (MPEPL)

2The Volumetric Accuracy Testmost accurately represents the reasonable expectations for machine performance in practical measuring applications since it involves measuring a certified length standard many times in several locations and orientations and compares the resultant measurements to the actual length. The Volumetric Length Accuracy Test is the most appropriate test for determining machine accuracy and repeatability. The result is the maximum deviation of the measuring distance less the theoretical length.
The published value is the pass-off specification for ASME B89.4.22 Volumetric Performance and VDI/VDE 2617-9 Sphere size (MPEPS) & Indication for size (MPEE)

Probing specifications are relevant to both the center and offset probe ports of the MCAx arm. The specifications are achieved under stable environmental conditions with the MCAx arm mounted on a base plate or magnetic base and using a 15 mm diameter, 50 mm long, steel ball probe connected to both probe ports.

Accuracy in combination with handheld laser scanner

Arm typeLaser scanning system accuracy (2 sigma)
MMDx50MMDx100MMDx200MMCx80MMCx160LC60Dx
MCAx20+ 42µm (0,0017") 48µm   (0,0019") 66µm   (0,0026") 56µm   (0,0022") 70µm   (0,0028") 50µm   (0,002")
MCAx25+ 48µm   (0,0019") 54µm (0,0021") 70µm (0,0028") 62µm (0,0024") 74µm (0,0029") 58µm (0,0023")
MCAx30+ 54µm   (0,0021") 60µm (0,0024") 78µm (0,0031") 72µm (0,0028") 84µm (0,0033") 64µm (0,0025")
MCAx35+ 72µm   (0,0028") 76µm
(0,003")
98µm (0,0039") 90µm (0,0035") 102µm (0,004") 82µm (0,0032")
MCAx40+ 94µm   (0,0037") 96µm (0,0038") 114µm (0,0045") 108µm (0,0043") 118µm (0,0046") 100µm (0,0039")
MCAx45+ 116µm   (0,0046") 120µm (0,0047") 136µm (0,0054") 130µm (0,0051") 138µm (0,0054") 124µm (0,0049")
MCAx20 50µm   (0,002") 56µm (0,0022") 74µm (0,0029") 64µm (0,0025") 80µm (0,0031") 58µm (0,0023")
MCAx25 56µm   (0,0022") 62µm (0,0024") 78µm (0,0031") 70µm (0,0028") 84µm (0,0033") 66µm (0,0026")
MCAx30 78µm   (0,0031") 82µm (0,0032") 100µm (0,0039") 92µm (0,0036") 106µm (0,0042") 86µm (0,0034")
MCAx35 102µm   (0,004") 106µm (0,0042") 128µm (0,005") 122µm (0,0048") 134µm (0,0053") 114µm (0,0045")
MCAx40 128µm   (0,005") 136µm (0,0054") 154µm (0,0061") 148µm (0,0058") 158µm (0,0062") 142µm (0,0056")
MCAx45 162µm   (0,0064") 168µm (0,0066") 190µm (0,0075") 180µm (0,0071") 194µm (0,0076") 174µm (0,0069")

Laser scanning system accuracy: the laser scanning system accuracy indicates the performance of the laser scanner combined with a handheld localizer. The test is performed by scanning a highly accurate reference plate in 5 different orientations of the articulated arm and laser scanner. The 5 resulting  point clouds are merged together in one  point cloud and a best-fit plane is constructed through this  point cloud. For each of the points in this  point cloud, the distance is calculated to the best-fit plane. The result of the test is the 2 sigma value on all of the calculated deviations.

General conditions MCAx

Working temperature: 0 – 50°C (32 – 122°F)
Storage temperature:  -30 – 70°C (-22 – 158°F)
Relative humidity: 10 – 90% non-condensing
Operational elevation: 0 – 2000 m (0 – 6600 ft.)
Shock & Impact: 6ms, <1000 ms/s2
CE Compliance: Yes
Universal worldwide voltage: 110 – 240 V AC (50 – 60 Hz)

Configurations

 MCAx+MCAx
Scanner compatibility1 Handheld scanners: MMDx / MMCx / MMD / MMC
Dual-use CMM & handheld scanners: LCDx / LCD
Feature pack Scanning pack
Probes 15mm diameter steel, 50mm long
6mm diameter ruby, 100mm long
3mm diameter ruby, 100mm long
TESA TKJ connectors Standard
Locking counterbalance Standard
Hard case Standard
Dust cover Standard
Probe calibration sphere Standard
NIST traceable length standard Standard  Optional 
Rotating grips Standard  Not available 
Base Magnetic  Bolt-down

1Scanner not included with MCAx arms as standard

Features

Flexible probing options

Customers can choose between high-accuracy, no-compromise MMDx scanners with 50mm, 100mm or 200mm stripe widths; or budget-conscious, but effective MMCx scanners with 80mm or 160mm stripe widths.On top of that LC60Dx or LC60D CMM scanner users can extend their measurement capability by also using the scanner on an MCAx arm. For tactile measurements, MCAx supports a wide variety of tactile (straight and hook) and touch-trigger probes in many lengths and stylus configurations.

Intuitive scanning and inspection software

ModelMaker MMDx/MMCx scanners and MCAx arms seamlessly interact with Focus software for scan and tactile probe data acquisition and inspection processing. It is a total solution that tightly integrates hardware and software to guarantee smooth and error-free operation. Scanning and application software Focus 10 supports intuitive inspection using an articulated arm or Optical CMM with tactile and/or scanning probes. The software is specifically designed to easily control data flows with minimum user interaction. For the first time, customers can complete handheld data acquisition and inspection jobs from within Focus without compromising performance. The point cloud builds up in real-time as it is being acquired seamlessly followed by inspection of the specimen geometry against CAD or another scan. The inspection toolbox of Focus 10 includes advanced analysis functionality such as detailed part-to-CAD comparison, feature extraction, gap & flush inspection and GD&T. Alternatively, through the Nikon Metrology API, the MMDx/MMCx handheld scanners and MCAx arms can be used directly in many 3rd party inspection software applications, including PolyWorks®, Rapidform®and Geomagic®. For reverse engineering applications users can select from a broad offering of 3rd party packages which tightly integrate all Nikon Metrology handheld scanners.

 

Overview

The MCAx Manual Coordinate measuring Arm is a precise, reliable and easy-to-use portable 7-axis measuring arm. It is the perfect partner for the ModelMaker MMDx/MMCx digital handheld laser scanners and Focus Handheld scanning and inspection software. This total solution's accuracy, capability and portability make it feel perfectly at home in the metrology lab, on the shop floor and in-the-field.

The MCAx arm can be equipped with a wide range of probing systems for laser scanning, touch-trigger measurements and continuous scanning. Its flexibility makes this measurement arm the perfect solution for the widest range of measurement tasks. The new 7-axis MCAx range of articulated arms is available with a measurement volume ranging from 2.0 and 4.5 meter diameter.

Key benefits:

  • High accuracy and fast data throughput saves time and money
  • Optimized for hard-to-scan surfaces
  • Designed for use under all shop floor or field conditions
  • Extreme temperature stability and zero warm-up time
  • Quick and easy plug-and-play setup
  • Short learning curve
  • On-board calibration storage
  • Scanner compatible with all major brands of portable localizers and point cloud software
  • No external controller
  • Automatic probe recognition
  • Enhanced ergonomics mean stress-free usage
  • Seamless transition between scanning and touch-probing

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FaLang translation system by Faboba

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