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Showing 1 to 17 of 17 for “"coordinate measuring machine"”.
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Modeling and verification methods for the inspection of geometric tolerances using point data
… a programmable inspection tool, known as the coordinate measuring machine (CMM), has become popular. A CMM is programmed to collect point data information from the surface of a part. This data is analyzed by verification algorithms to determine if the part conforms to the tolerance …
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Development of a Software Tool to Estimate Airfoil Feature Variations
… raw material inspection data obtained from a Coordinate Measuring Machine (CMM) and estimates feature variation created within the manufacturing process i.e. from the raw material stage to finished stage. This tool is used not only to disposition whether a lot is conforming or non-conforming, …
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Versatility And Customization Of Portable Cmm In Reverse Engineering A
… to achieve this are frequently using Coordinate Measuring Machine [CMM] among other tools. The purpose of this thesis is to demonstrate the versatility of portable CMM as a Reverse Engineering Tool through application experiments aimed at industrial and non-industrial solutions. The …
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Height error mapping and compensation for a fused filament fabrication machine
… compensation method for fused lament fabrication machines ("3D printers") is developed. In the proposed method, an error mapping artifact is produced and inspected using a coordinate measuring machine to determine height errors at 81 discrete points in the machine's work envelope. A polynomial …
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A parametric study of the repeatability of 3D printed LEGO®-like mechanical couplings
… (FDM) printer and measured with a ZEISS MICURA Coordinate Measuring Machine. The accuracy of each coupling was determined by measuring the radial misalignment between the base and the top of the coupling, and the repeatability of each coupling was determined by calculating the standard deviation …
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Dynamic Reconfigurable Machine Tool Controller
… framework is proposed which will allow a machine tool to be controlled by a variety of applications and control laws. This Reconfigurable Mechanism for Application Control (RMAC) paradigm uses a hierarchical architecture to configure a mechanism into a device driver for direct control by …
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A Case Study of Multiple-Use Finish Electrodes for Die-Sinking EDM
… one finishing electrode per die. Utilizing a Coordinate Measuring Machine (CMM), the inspection of specific locations on the finishing electrode reveals the repeatability and accuracy of use for one finishing electrode for six gear forging-dies. Initial experimentation validates the …
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Linking CAD and Metrology to Explain, Demonstrate, and Teach Geometric Dimensioning and Tolerancing
… of tolerance. The technique employs a portable coordinate measuring machine (CMM) interfaced with parametric solid modeling software, a 3D printer, and a granite surface table to accomplish this. A set of engineering drawings is created, and a 3D printer is used to produce imperfect parts. These …
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A robotic system for photopatteming of freeform surfaces
… While traditional stereolithography machines are designed to build on planar substrates, patterning of non-planar surfaces would enable integration of new functionality onto existing objects for applications such as structurally integrated sensors, conformal electronics, and …
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Advances in hybrid water-lubricated journal bearings for use in ocean vessels
… a nominal diameter of 3.24" as measured with a Coordinate Measuring Machine - greatly exceeding the published tolerances of conventional methods. A unique experimental test rig was designed and built in order to measure the performance of 15 different prototype bearing designs. The rig is …
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Design and analysis of a three degrees of freedom (DOF) parallel manipulator with decoupled motions
… This advantage has great potential for machine tools and Coordinate Measuring Machine (CMM).
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The development and implementation of a hybrid rocket motor thrust stand to investigate the relationship between combustion chamber pressure and graphite rocket nozzle erosion in hybrid rocket motors
… and post-test fire through the utilization of a coordinate measuring machine (CMM). Initial results show that, despite the non-linear boundary layer growth, a linear relationship between combustion chamber pressure and nozzle erosion may still be true for chamber pressures below 6.89 MPa. Testing …
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Improving the Three Dimensional, Structural Velocity Field Reconstruction Process with Computer Vision
… whose circular features are measured with a coordinate measuring machine. The corresponding image points are determined by constructing the bitangents among the ellipses and selecting the tangent points. Taken together, these object/image bitangent point sets are a significantly improved data …
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High-quality 3D shape measurement with binarized dual phase-shifting method
… techniques. The contact techniques like coordinate measuring machine</p> <p>(CMM) dates way back to 1950s. It has been used extensively in the industries since then.</p> <p>It becomes predominant in industrial inspections owing to its high accuracy in the order of</p> <p>m. As we know …
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Flexible machine tool control for direct, in-process dimensional part inspection
<p>For some time now coordinate measuring machines have been an integral part of the shop floor. The goal has been to make coordinate measuring machines (CMMs) into tools that can easily be used by machinists to improve their manufacturing capabilities. The value of a CMM as a quality control tool …