3D Print Preparation Checklist

Help me prepare a model for 3D printing. Object: {{object}}. Printer type and material: {{printer_and_material}}. Model source: {{source}}.

Provide: geometry checks (watertight, manifold, wall thickness, tolerances, minimum feature size); orientation and support strategy with reasons; splitting and joining large parts; layer height, infill and wall suggestions as starting points to verify against the material's guidelines; common failure causes (warping, stringing, overhangs) and fixes; post-processing; and a short test print plan. Remind me that settings vary by machine and material and to test.