1/6
Description
Bring some JDM spirit to your wall with this key holder, designed to look like a classic performance engine valve cover.Each key attaches to a removable keychain that slides into the valve cover ports, creating a fun and mechanical way to organize your keys.This design includes two different types of keychains:
Simple bottle-shaped keychains for easy printing
Piston-style keychains, more detailed and print-in-place, inspired by real engine pistons
Both types work with standard key rings, making them easy to attach to your keys.
The holder mounts securely to the wall using standard 4 mm flat head screws.The model is designed to be printed on common FDM printers and was sliced using Orca Slicer.
If you print one, please share your makes! I’d love to see different color combinations, materials, and setups.
Print Difficulty
Supports only touching the bed, The piston keychains include print-in-place moving parts, so correct support settings are important.
Included Files
Individual
OBJ file
3MF file
GCODE for Creality Ender 3 Pro
Orca Slicer project (Ender 3 Pro)
Fusion 360 source file for modification or improvements
Printing Settings
Layer height 0.20 mm. Recommended layer height 0.16 mm (for 0.4 mm nozzle)
Variable layer height Recommended for smoother surfaces
Nozzle 0.4 mm
Perimeters 2
Infill 15% Rectilinear. Optional stronger infill 20%
Supports Build plate only
Print-in-place parts Yes (piston keychains)
Materials
Valve cover PLA
Bottle keychains PLA
Piston keychains PLA or PETG (PETG recommended for durability)
The piston keychains can be printed in PLA, but PETG or stronger materials are recommended for better durability since they will be used frequently.
Assembly
Insert a standard key ring into the keychain.
Slide the keychain into the valve cover ports.
Mount the holder to the wall using 4 mm flat head screws.
Share Your Makes
If you print this model, please upload your makes and photos.Seeing different colors, materials, and custom versions helps the community and inspires new ideas!
