Nissan Leaf Wheel Cover Plates (Aerodynamic Modification)

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These are snap-in Nissan Leaf wheel cover plates (aerodynamic mod). This Nissan wheel-cover features two distinct shapes - small and large. You can install both types for complete aerodynamic coverage, or stagger them. For best results, print vertically one part at a time. I intentionally over-extrude in spiral (vase) mode with some brim. I'm using 0.3mm layers and a 0.4mm nozzle with line (extrusion) width set to 0.7mm in Cura: Spiralize Outer Contour - checked Smooth Spiralized Contours - checked For multiple parts at a time, simply ensure your seams align with the end of each flange (away from the exterior surface). This will preserve retention clip strength and maintain a nice-looking outer surface. I'm using Hatchbox ABS, but PLA or PETG would probably work just fine. Snap the parts in, and make sure they are secure. To access the tire valve, I simply remove the entire wheel cover. Consider removing the wheel covers to allow for brake cooling on very hot days and/or if you plan on long descents, etc. Aerodynamic assessment using coast-down testing methods is planned for the near future. In the meantime, development of this design is based on aero data from this study by Alexey Vdovin (specifically, configuration "f"): https://core.ac.uk/download/pdf/70600281.pdf This design was inspired by similar alloy wheel Nissan Leaf Petals by Paul Kennett: https://www.myminifactory.com/object/3d-print-nissan-leaf-alloy-rim-area-inserts-76399