5-Speed Gear Box Mechanical Model - Original In-House Design

Explore the heart of mechanical transmission with the LIVICO 5-Speed Gear Box. This is not a model based on existing schemas: it is an original design, developed and built step-by-step to offer an unprecedented and fully functional mechanical reproduction. Every detail has been thought out and perfected through a manual prototyping process, applying a solid industrial logic to ensure a unique assembly experience. Key FeaturesUnique and Original Design: Designed entirely from scratch by a technician with over 30 years of experience in Manufacturing Engineering. Real Kinematics: The mechanism is designed to demonstrate gear shifting and the internal operation of synchronizers and gears with pinpoint precision. Comprehensive Documentation: Includes a professional PDF assembly guide, with parts tables (BOM) and step-by-step exploded views. Verified Quality: Each individual piece has been physically printed, tested, and assembled to ensure that tolerances and connections are flawless. Printing and Material InformationYou bring extraordinary 3D printing expertise to this project. For this reason, you will not find rigid material guidelines in the manual, leaving room for your experience in choosing the filament you deem best.
However, for transparency, I can confirm that all prototypes of this original gear box were printed on a Creality K1C using PLA 2+ filament, achieving excellent results for the mechanical strength of the gears. Package IncludesAll STL files necessary for 3D printing. Professional Assembly Manual (PDF). Parts list (BOM) and detailed instructions. Assembly TipsFor perfect operation, ensure all parts are free of burrs or printing residue before proceeding. Fundamental Note: Being a complex mechanism, it is highly recommended to use a small amount of silicone grease on the gears and selectors to ensure smooth shifting and to protect the model over time. Happy printing and enjoy this original LIVICO project!Safety & Disclaimer: This project includes 3D printed mechanical parts and small components. By downloading these files, the user acknowledges sole responsibility for the safe assembly, operation, and maintenance of the model. LIVICO is not liable for any damages or injuries resulting from the use of these files or assembly of the parts. Please keep small components away from children as they may pose a choking hazard

Printer: Creality K1C (High-speed FDM). For full transparency, every component of this project has been physically printed, tested, and assembled on this specific machine to ensure perfect tolerances and mechanical reliability.Material: SUNLU PLA+ 2.0 (Selected for its high strength and consistent dimensional accuracy of +/- 0.02 mm).Layer Height: 0.2 mm.Infill:20% (Structural & Static Parts): Upper housing (1001), Lower housing (1002), Cover leverage (1003), Spacer 3_5 (1017), Spacer 7_3 (1018), Spacer 8_3 (1019), Shafts bracket (1020), Lever plate (1021), Gear lever lock (1022), Gear selector (1026), Gear selector shaft (1027), 4th 5th plate (1028), 2nd 3rd plate (1029), and 1st plate (1030). 100% (Mechanical Moving Parts): Shaft a (1004), Shaft b (1005), Gear 16 teeth (1006), Gear 14 teeth (1007), Gear 12 teeth (1008), Gear with hub 20 teeth (1009), Gear with hub 14 teeth (1010), Gear with hub 12 teeth (1011), Gear with hub 18 teeth (1012), Gear 18 teeth (1013), Gear 20 teeth (1014), Idle gear 16 teeth (1015), Pinion bevel (1016), 4th 5th gear lever (1023), 2nd 3rd gear lever (1024), 1st gear lever (1025), First gear bushing (1031), Bushing with hexagon (1032), Idle gear bushing (1033), Gear lever (1034), Short bushing (1048), and Bushing (1049). Post-processing: Please ensure that all parts are free of burrs and excess material before assembly. Clean contact surfaces are essential for smooth operation. We highly recommend applying a small amount of silicone grease to all gears and moving parts to significantly reduce friction and ensure long-lasting, smooth performance.