STL Beyblade to STEP Conversion Plus Mold Design.

I have a highly detailed Beyblade model in STL format that I now need as a fully watertight STEP solid for machining operations. The geometry must be an exact replica of the mesh—no cosmetic or dimensional changes—yet clean enough for reliable tool-path generation in my CAM software.

Please reconstruct whatever complex surfaces, fillets, and undercuts are present so the final file opens as a single solid body in programs such as SolidWorks, Fusion 360, or Siemens NX without repair work on my side. Mesh artifacts need to be smoothed where necessary, but every design feature must remain true to the original. After the model has been recreated, design a 2 piece mold for use in injection die casting.

Deliverable
• Three high-fidelity .STEP files ready for CNC machining including the original model as well as the two halves of the mold