3D printing opens doors to customization, experimentation, and personalization for sex dolls, but it also demands careful planning. Start with a clear design goal: what part needs replacement, accent, or extension? Common upgrades include hands, feet, facial details, or accessory mounts. Source or design CAD files that match your doll’s scale and material compatibility. Material choice matters: flexible resins or low-temperature thermoplastics can mimic soft tissue or offer rigid support, depending on the part’s function. Consider wall thickness and internal lattice structures to balance strength and weight.

Printing settings influence fit and finish. Calibrate layer height for smooth surfaces, minimize rough edges with post-processing sanding, and use sealing primers to reduce porosity. For skin-like parts, apply safe coatings that resist moisture and wear. Assembly should respect the doll’s joints and tolerances; use compatible fasteners or adhesive systems designed for the chosen materials. Test-fit before final bonding to avoid over-stressing connectors.

Safety, hygiene, and maintenance are paramount. Clean printed parts thoroughly to remove residue, and select materials that resist cleaning agents without degrading. Store printed components to prevent warping or deformation. Document each modification for future repairs. With patience and precision, 3D-printed parts can expand the creative horizon while preserving safety and longevity.