GATE ME 2026 Set 1 — Question 31

MCQ+1 / -0.33MediumAdditive Manufacturing & 3D PrintingComputer Integrated ManufacturingMetrology, CIM & Additive Mfg

Metrology, CIM & Additive Mfg → Computer Integrated Manufacturing → Additive Manufacturing & 3D Printing

Last updated 5 September 2026

Question

Which one of the following options is NOT an error associated with STereoLithography (STL) file in additive manufacturing?

Correct answer (A) Staircase effect Solution STL files represent surfaces as a mesh of triangles. Common errors inherent to the file format include missing facets (holes), non-manifold topology (where an edge is shared by more than two facets), and degenerate facets (facets with zero area). The Staircase effect is a characteristic of the layer-by-layer additive manufacturing process itself, caused by approximating curved surfaces with discrete layers, and is not an error within the STL file. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (A) Staircase effect Solution STL files represent surfaces as a mesh of triangles. Common errors inherent to the file format include missing facets (holes), non-manifold topology (where an edge is shared by more than two facets), and degenerate facets (facets with zero area). The Staircase effect is a characteristic of the layer-by-layer additive manufacturing process itself, caused by approximating curved surfaces with discrete layers, and is not an error within the STL file.

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