Model is complete and shows evidence of planning.
Student has followed design requirements (size limits, project goals, class guidelines).
File is saved in the correct format (.STL or teacher-approved).
Model is “manifold” (watertight, no holes or gaps).
No floating parts or unsupported overhangs that will fail without supports.
Orientation has been considered for best print results (flat base, minimized supports).
Model fits within the printer’s build area.
Estimated print time is within classroom limits.
Material usage is efficient (not wasting filament).
Student can explain the printing process and safety rules.
Student knows what to do if something goes wrong.
Workspace is organized and prepared for printing.
Student presents design and explains purpose/function.
Student answers teacher questions about design choices.
Teacher approves model for printing.