Comparison of the results of 4 users of a contemporary CADCAM system
McGarry, T. and McHugh, B. (2007) Comparison of the results of 4 users of a contemporary CADCAM system. Prosthetics and Orthotics International, 31 (1). pp. 27-35. ISSN 0309-3646
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Abstract
The objective of this study was to investigate the variation of measurements recorded when four different users of the Tracer CAD system trace a model of known dimensions and volume. This complements a previous study by the same authors Mc Garry and Mc Hugh, (2005) where the accuracy and consistency of a single user was measured. Landmarks were added to indicate proximal, distal, anterior, medial and lateral regions of a specially manufactured cylindrical nylon 6.6 model. Four circumferential lines were added at regular intervals along the length of the cylinder with a view to calculating diameters and volumes relative to these landmarks. The model was measured using a comparator with guaranteed accuracy to one hundredth of a millimetre, and was traced using the Tracer CAD system by four different users. The difference in mean volume between measured results and Tracer CAD scans of differing users ranged to -3%. Individual trace volumes varied by up to -7.85%. In all volumes measured, eleven out of twelve maximum volume percentage differences measured greater than 2 %, and of these, seven results showed maximum volume percentage difference to measure greater than 4%.
Creators(s): |
McGarry, T. ![]() | Item type: | Article |
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ID code: | 15048 |
Keywords: | CAD CAM, shape capture, accuracy, measurement, prosthetics, orthotics, Other systems of medicine, Engineering design, Rehabilitation, Health Professions (miscellaneous) |
Subjects: | Medicine > Other systems of medicine Technology > Engineering (General). Civil engineering (General) > Engineering design |
Department: | Faculty of Engineering > National Centre for Prosthetics and Orthotics |
Depositing user: | Dr Anthony McGarry |
Date deposited: | 22 Jan 2010 16:42 |
Last modified: | 20 Jan 2021 18:04 |
URI: | https://strathprints.strath.ac.uk/id/eprint/15048 |
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