Abstract
A coordinate measuring machine (CMM) is one of the most common devices in engineering measurement. A CMM is a device to measure the geometry of physical specimen by sensing on the surface of the specimen with the measuring probe. Unfortunately, the measuring probe in the Metrology Laboratory at UiTM Cawangan Pulau Pinang is not able to touch the surface of the workpiece with a thickness less than 40 mm. In order to solve this issue, a special jig needs to be used. The existing jig has some problems where the measurement results are inaccurate and causing damage to the accessories of CMM. Thus, the objective of this study is to improve the design and fabrication of the jig for the CMM in order to replace the existing jig. The jig will be used to hold and clamp the cylindrical and square workpiece and ensure that the measuring probe can touch the workpiece perfectly. The Pugh method is used to identify the best conceptual design. The new design of the jig has been built up using the CATIA software. Hardwood and polylactic acid (PLA) were selected for the jig material. The fabrication of the jig has been done using the 3D printing technology. Comparison has also been done with the new and existing jig. The results show that the improved jig is more suitable and acceptable to replace the existing jig.
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Acknowledgements
This research was not funded by any grant. The authors would like to thank the Center for Mechanical Engineering Studies as granted us permission to conduct site measurement inside the Metrology Laboratory and express their appreciation to Universiti Technology MARA, Cawangan Pulau Pinang, Malaysia, for giving the opportunity and support to do this research study.
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Nasir, S.S.M., Hussin, N., Fohimi, N.A.M., Ibrahim, D., Wahab, R.M. (2023). Design Improvement and Fabrication of a Jig for Holding a Workpiece in a Coordinate Measuring Machine. In: Abu Bakar, M.H., Razak, T.A.b.A., Öchsner, A. (eds) Progress in Engineering Technology V. Advanced Structured Materials, vol 183. Springer, Cham. https://doi.org/10.1007/978-3-031-29348-1_21
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DOI: https://doi.org/10.1007/978-3-031-29348-1_21
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