Spike Halo Pearl Clip-On Earring CAD File for Jewelry Casting

Description

This Spike Halo Pearl Clip-On Earring CAD file for jewelry casting delivers a complete production-ready model of a starburst halo earring pair centered on a 10mm pearl. The spike frame consists of radiating prong-tipped arms arranged in a full halo formation around the pearl seat, with each arm terminating in a 2.5mm round diamond claw setting. The omega clip-on mechanism is modeled as a fully integrated cast unit — no post-casting fabrication or soldering is required for the back assembly.

The file structure is compatible with Rhino, JewelCAD, and all major DLP/SLA wax printing systems. Geometry has been verified for wall thickness, escape hole placement, and prong arm integrity prior to release. Metal weight data is pre-calculated across all primary casting alloys for direct production cost estimation.

• Integrated Omega Clip Casting: The clip-on back mechanism is modeled as a single cast unit with the earring body, eliminating the need for soldered-on findings and reducing production steps and rejection risk.
• Casting-Ready Geometry: All spike arm prong bases are reinforced for post-cast stone setting. Escape holes are correctly positioned throughout the hollow structure to ensure complete investment compound penetration.
• Printable Structure: Wall thickness verified above 0.6 mm across all components. Wax CNC model weight is 0.95 g per pair, indicating lean geometry with minimal support requirements for resin printing.
• Multi-Alloy Cost Coverage: Pre-calculated metal weights across 10K, 14K, 18K gold (YG/WG/RG), 22K yellow gold, silver 925, and platinum allow direct per-piece cost estimation without additional CAD work.
• Scalable Pearl Seat: The 10mm pearl cup geometry can be uniformly scaled in Rhino to accommodate 8mm, 11mm, or 12mm pearl sizes while maintaining spike arm proportions.

• Stone Type: Round Brilliant Cut Diamonds
• Total Diamond Count: 20 pcs (10 pcs per earring)
• Stone Size: All 2.5 mm — uniform across the full halo frame
• Total Diamond Weight: 1.16 CT (pair) / 0.58 CT per earring
• Setting Style: Prong setting — individual claw seat at each spike arm tip
• Halo Layout: Starburst radial arrangement — 10 spike arms per earring, evenly distributed around the pearl center
• Setting Tolerance: All 2.5mm stone seats calibrated to standard manufacturing tolerances for round brilliant cut stones
• Center Stone: 10mm round pearl (seat pre-modeled; pearl is a separate assembly component)

• Rhino (.3DM): Full editable geometry with separable earring body and clip components. Compatible with Matrix Gold and RhinoGold plugins for stone placement verification.
• JewelCAD (.JCD): Native JewelCAD Pro format retained for direct editing, scaling, and stone seat adjustment within the JewelCAD environment.
• STL Export: High-resolution closed mesh ready for Formlabs, Solidscape, Asiga, and equivalent wax or resin printing systems. No mesh repair required.
• Component Structure: Earring body and omega clip are modeled as a single merged unit for direct casting. Individual component layers are accessible in the Rhino file for toolpath customization if required.

• The integrated omega clip spring tension is designed for standard clip-on earring comfort tolerances. If regional client specifications require adjustment, the clip arm geometry can be modified in the Rhino file prior to STL export.
• Pearl seat depth is pre-set for a 10mm round pearl with standard peg mounting. Verify peg diameter against your pearl supplier specifications before committing to production. Seat depth adjustment is straightforward in Rhino.
• All 10 spike prong arms per earring are modeled with reinforced bases to withstand prong-pushing forces during diamond setting. Post-cast polishing of spike tips is recommended before stone setting to ensure consistent prong geometry.
• For scaling to accommodate larger pearl sizes (11mm or 12mm), apply uniform scale to the full earring body excluding the omega clip unit. Re-verify prong arm spacing after scaling to confirm even stone distribution.
• Investment casting at standard lost-wax temperatures is recommended. Confirm alloy-specific burnout schedules with your casting workshop. Platinum casting requires a dedicated investment compound — do not use standard gold/silver compound for platinum runs.