Choose the object to model
Decide the model’s purpose and size
Gather reference images or measurements
Open 3D modeling software
Set units and scale correctly
Create a basic shape or base mesh
Build the model with simple geometry
Keep the design watertight and manifold
Add necessary details and features
Check wall thickness
Avoid overhangs that need excessive support
Ensure parts fit together if the model is assembled
Apply smoothing or bevels if needed
Inspect for holes, non-manifold edges, and intersecting faces
Fix mesh errors
Orient the model for printing
Export the file as STL, OBJ, or 3MF
Import the file into slicing software
Check printability and dimensions in the slicer
Generate supports and infill settings
Save the sliced file for printing