Press Control + A > Apply > Scale in order to hardwire the new scale into the mesh.

If necessary, return the scaled object to the world’s center.It is recommended that the biggest dimension (X, Y, or Z) not be considerably larger than 0.1 m. In the N-key panel’s Transform section, check the scale.(Suggestion: Scale the model down to about 0.1 meters, which is equal to 100 mm or 10 cm. Toggle on Scale mode by pressing S, then specify a scale factor to change the object’s dimensions to match the desired real-life size.Choose the object, and make sure the Transform Dimensions values are shown in the N-key panel.The complete model and its supporting structure are now one seamless, manifold mesh. Repeat these steps for the remaining CorrectiveSmooth modifier. Apply the Remesh modifier by moving your pointer over it and pressing Control + A.(The Repeat value is set to 10 in the example.) To reduce the voxel remeshing artifacts: Add a Smooth Corrective modifier > select Only Smooth > c hoose Length Weight for the Smooth Type > a nd change the Repeat value to your preference.(In the example, the Voxel Size was set to 0.007 while using the default Suzanne dimensions.) Then, adjust the Voxel Size to the desired level of detail. Include a Remesh modifier, and confirm that the Voxel mode is on.Then, press Control + J to combine the objects into a single mesh. In Object Mode, select the head and the support.Hover your pointer over the subdivision modifier, then hit Control + A to ensure it is applied. Note: Making an object “watertight” in Blender for 3D printing with these 4 steps The flaws are loose pieces, open edges, and other imperfections that might show up in a 3D virtual space.

This requires that the object have a continuous surface free of flaws. An object must be manifold, or “watertight,” in order to be ready for 3D printing.

Blender stl files 3d printing