Precautions of sinbar experiment
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Precautions in use of sine bars.
(i) The sine bar should not be used for angle
greater than 60° because any possible error in construction is accentuated at this limit.
(ii) A compound angle should not be formed by mis-aligning of workpiece with the sine
bar. This can be avoided by attaching the sine bar and work against an angle plate.
(iii) Accuracy of sine bar should be ensured.
(iv) As far as possible longer sine bar should be used since many errors are reduced by
using longer sine bars.
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