Single-Row Polki Necklace

# Single-row polki necklace — master parameters # Units: millimetres # Unknown dimensions must be supplied before production modelling. PARAMS = { "finished_length_mm": 406.4, "silver_thickness_mm": 0.600, # REQUIRED DESIGN INPUTS — intentionally unresolved "length_includes_clasp": None, "front_drop_mm": None, "max_width_mm": None, "oval_stone_length_mm": None, "oval_stone_width_mm": None, "pear_stone_length_mm": None, "pear_stone_width_mm": None, "stone_height_mm": None, "base_diamond_sieve": None, "diamond_sieve_increment": None, # 3 or 4 "bezel_wall_mm": None, "seat_clearance_mm": None, "foil_thickness_mm": None, "clasp_type": "standard", } def validate_parameters(p): required = [ "finished_length_mm", "silver_thickness_mm", "length_includes_clasp", "front_drop_mm", "oval_stone_length_mm", "oval_stone_width_mm", "pear_stone_length_mm", "pear_stone_width_mm", "stone_height_mm", "base_diamond_sieve", "diamond_sieve_increment", ] missing = [key for key in required if p.get(key) is None] if missing: raise ValueError( "Production modelling blocked; missing inputs: " + ", ".join(missing) ) if p["diamond_sieve_increment"] not in (3, 4): raise ValueError("Sieve increment must be 3 or 4.") if p["finished_length_mm"] <= 0: raise ValueError("Finished length must be positive.") if p["silver_thickness_mm"] <= 0: raise ValueError("Silver thickness must be positive.") # Next modelling stages: # 1. Create reference centreline and layout stations. # 2. Generate stone outlines and individual setting profiles. # 3. Construct bezels, backs, beads and articulated links. # 4. Add clasp geometry and foil components. # 5. Validate solids, clearances and structural thickness. # 6. Export and re-import approved files.

Parameters

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.