Analysis Of Linear And Angular Errors Of A Small
Coordinate Measuring Machine (SCMM)
Author(s)
J. Loh, J. McBride, M. Hill & D. Zhang
Abstract
In ths research, a small coordinate measuring machine has been assembled using
standard opto-mechanical parts, 3 precision carriages and a Keyence LT-8010
laser displacement measuring probe. A study was conducted to assess the
positioning accuracy of this machine by employing laser interferometry principles
to measure error components of individual positioning carriages. An error model
of the small coordinate measuring machine was also developed to take into
account these error components and compute the resulting positioning capabilities
of this machme. From the analysis of linear and angular errors, it became clear
that after 3 years of operation, the positioning carriages had developed faults that
were affecting their normal working abilities. Ths research concludes by
analysing the errors obtai
Keywords
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