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Three-dimensional projection exercises  149










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                    co
                    co
                    (S)








                    Figure 6.28




                    view to transfer line AA and fix the top of the cut face at point P.Repeat the procedure for
                    points BB and CC, which are intermediate lines, to establish further points for the
                    required curve. These points lie on the circumferences of the circles which interesect
                    the cut face.
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