Blood-Red Precision Wheel Adapter center cap for Wheel
Budget: $30 – $250 USD
I need 6 each of press-fit adapter rings that allow my Audi 69 mm floating centrer caps to seat perfectly in an OZ Racing Supreme XT wheel with a 71.60 mm hub bore. Dimensional accuracy is absolutely critical; every spec below must fall within the stated tolerances so the caps lock in firmly yet remove without damage.
Key geometry
• 71.60 mm outer diameter, +0.05/-0.00 mm, with the option of a 73.60 mm cosmetic lip (2 mm thick)
• 69.00 mm inner diameter, +0.10/-0.00 mm, featuring a 1.5 mm × 1.0 mm inner retention lip (67.00 mm ID)
• Total depth 8 mm (5 mm wheel side, 3 mm cap side)
• Three anti-rotation tabs: 0.75 mm high, 4 mm wide, spaced at 120°
Print and material requirements
• PETG in a vivid BLOOD RED filament, printed face-down flat on the bed
• Overall print tolerance: ±0.10 mm or better
• No logos, text, or serial numbers on any visible surface
Deliverables
1. Finished PETG rings (minimum batch of four) meeting the above specs, carefully deburred and ready to install.
2. The matching STL and slicer project file used, with layer height, infill, and cooling settings visible for verification.
3. Photos of first-article measurements on calipers to confirm critical dims before the balance of the batch ships.
I can supply additional reference photos of the wheel and centre caps once we start. Please outline your printer model, typical dimensional tolerance you achieve in PETG, and estimated turnaround time including shipping.
Key geometry
• 71.60 mm outer diameter, +0.05/-0.00 mm, with the option of a 73.60 mm cosmetic lip (2 mm thick)
• 69.00 mm inner diameter, +0.10/-0.00 mm, featuring a 1.5 mm × 1.0 mm inner retention lip (67.00 mm ID)
• Total depth 8 mm (5 mm wheel side, 3 mm cap side)
• Three anti-rotation tabs: 0.75 mm high, 4 mm wide, spaced at 120°
Print and material requirements
• PETG in a vivid BLOOD RED filament, printed face-down flat on the bed
• Overall print tolerance: ±0.10 mm or better
• No logos, text, or serial numbers on any visible surface
Deliverables
1. Finished PETG rings (minimum batch of four) meeting the above specs, carefully deburred and ready to install.
2. The matching STL and slicer project file used, with layer height, infill, and cooling settings visible for verification.
3. Photos of first-article measurements on calipers to confirm critical dims before the balance of the batch ships.
I can supply additional reference photos of the wheel and centre caps once we start. Please outline your printer model, typical dimensional tolerance you achieve in PETG, and estimated turnaround time including shipping.
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