of it in a coherentfashion.Figure 7: Coincident lines (Line A and Line B) on different planes in an isometric view.Figure 8: Student sketched chamfered corner where collinear vertical line represents two edgeson different planes (indexed 4c and 4d in data).Figure 9 shows a part with curved surfaces which the student found difficult to sketch. Incontrast, Figure 10 shows a very similar part that the student sketched without difficulty.Figure 9: Curved surface part that proved difficult for student to render orthographically.Figure 10: Similar curve surface part that the student sketched easily.In summary, the student learned to sketch isometric views of parts without the support of 3Dprinted parts. The isometric views were clear, and visually
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