The ModelMaker MMDx handheld laser scanners are ideally suited for portable 3D inspection and reverse engineering applications. Their camera technology is a major leap forward in 3D laser scanning as they offer high frame rates and large stripe widths up to 200mm for ultra-productive scanning. MMDx incorporates Enhanced Sensor Performance (ESP3) to scan all sample materials and surface finishes without user intervention.
The digital camera technology offers a measuring accuracy down to 7 microns and benefits from a true non-interpolated resolution of more than a thousand points per stripe, allowing freeform surfaces and features to be scanned accurately and efficiently.
Featuring high frame rates and laser stripes up to 200 mm, the digital MMDx range provides the ultimate in scanning productivity. The scanner’s digital cameras benefit from a true (non-interpolated) resolution of over 1.000 points per stripe, providing optimum resolution for scanning freeform surfaces and features efficiently.
Tactile measuring of soft and fragile parts potentially yields inaccurate measurements or can cause surface marks. As laser scanning technology is entirely non-contact, there is no risk for damage or inaccurate measurement.
Part-to-CAD inspection compares the acquired point cloud with nominal CAD data, resulting in easy-to-interpret geometric deviation displays. Freeform surface inspection is ideal for studying material springback and shrinkage phenomena to ensure that the shape of the part is within geometry specifications. Focus extracts geometric features highly accurately, thanks to the thousands of measurement points captured by the scanner. This multitude of points allows the software to apply very accurate line fitting to determine the exact position and orientation of a wide range of features.
Reverse Engineering quickly creates CAD surface models from individual point clouds using a straightforward workflow. Reverse engineering is typically applied when original CAD data is missing, to create CAD from handmade clay models, to update designs, or as input for rapid prototyping of freeform parts and products. For reverse engineering applications users can select from a broad offering of 3rd party packages which tightly integrate all Nikon Metrology handheld scanners.
ESP3 incorporates dynamic point-by-point adaptation of the laser intensity. This capability allows different surface materials, finishes and transitions between various materials to be scanned without user interaction, eliminating manual parameter tuning and part spraying altogether. ESP3 is a key differentiator when scanning similar parts in different manufacturing stages; initially dealing with bare sheet metal parts and finally scanning finished products finished in any color.
easuring soft and fragile parts with tactile methods potentially induces inaccurate measurements or can mark the surface. As laser scanning technology is entirely non-contact, there is no risk of damage or inaccurate measurement due to part indentation.
Focus 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. Customers can complete handheld data acquisition and inspection jobs from within Focus without compromising performance.
Alternatively, through the Nikon Metrology API, the ModelMaker handheld scanners and MCAx arms or Optical CMM can be used directly in many 3rd party inspection software applications, including PolyWorks® and Geomagic®. For reverse engineering applications users can select from a broad offering of 3rd party packages which tightly integrate with all Nikon Metrology handheld scanners.
The ModelMaker MMDx /MMDCx digital handheld scanners paired with MCAx portable articulated co-ordinate measuring arms allows you to reduce measurement times by rapidly diagnosing production issues in all areas of manufacture. This enables delivery of your products faster and with greater confidence by meeting the highest quality standards.
| MMDx50 | MMDx100 | MMDx200 | |
|---|---|---|---|
| Accuracy 1,2 (1σ) | 7 μm | 10 μm | 16 μm |
| Stripe width (Y) | 50 mm | 100 mm | 200 mm |
| Measuring range (Z) | 50 mm | 100 mm | 150 mm |
| Stand-off | 95 mm | 100 mm | 110 mm |
| Min. point resolution | 40 µm | 65 µm | 115 µm |
| Max. data rate | 150 Hz | ||
| Enhanced Sensor Perform. | ESP3 (real-time per point) | ||
| Warm up time | 0 sec | ||
| Weight (approx.) | 400 g | ||
| Laser power | Class 2, 660nm | ||
| Field of View indicator | Dot | ||
| Arm attachment | External | ||
1 Typical values are 30% better than published values.
2 Laser scanner Accuracy is determined by scanning a plane from various directions, each time using the entire scanner field of view. The result is the maximum 1ó deviation of the scan data to fitted plane features.
| Laser scanning system accuracy (2ơ) | |||
|---|---|---|---|
| Arm type | MMDx50 | MMDx100 | MMDx200 |
| MCAx20+ | 0.042 mm | 0.048 mm | 0.066 mm |
|---|---|---|---|
| MCAx25+ | 0.048 mm | 0.054 mm | 0.070 mm |
| MCAx30+ | 0.054 mm | 0.060 mm | 0.078 mm |
| MCAx35+ | 0.072 mm | 0.076 mm | 0.098 mm |
| MCAx40+ | 0.094 mm | 0.096 mm | 0.114 mm |
| MCAx45+ | 0.116 mm | 0.120 mm | 0.136 mm |
| MCAx20 | 0.050 mm | 0.056 mm | 0.074 mm |
|---|---|---|---|
| MCAx25 | 0.056 mm | 0.062 mm | 0.078 mm |
| MCAx30 | 0.078 mm | 0.082 mm | 0.100 mm |
| MCAx35 | 0.102 mm | 0.106 mm | 0.128 mm |
| MCAx40 | 0.128 mm | 0.136 mm | 0.154 mm |
| MCAx45 | 0.162 mm | 0.168 mm | 0.190 mm |
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 into 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 of all of the calculated deviations.
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