Fully Printed 1:28 RC Car Chassis (MINI-Z compatible)

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For the most up-to-date parts, visit the GitHub project page. Video: https://www.youtube.com/watch?v=_t0HLC2bZMU This is a 1/28 scale RC chassis designed to be compatible with Kyosho MINI-Z body shells. Current version fits 90mm (M) wheelbase shells. Update 8/26/20: I've released a 4WD chassis, available here. The 4WD version is optimized for drifting, while this one is better for grip racing and is cheaper to build. Features: • Independent front suspension and hinged rear suspension • Ackermann steering geometry with 45 degree max steering angle • Uses common and cheap parts (625 bearings, M3 hardware) • Low part count and variety - only 3 different screw lengths needed; locknuts everywhere Parts List | Part | Quantity | Notes | | --- | --- | --- | | M3x20mm button head screw | 7 | | | M3x14mm button head screw | 2 | | | M3x10mm button head screw | 8 | | | M3 lock nut | 17 | | | 625 bearing | 4 | | | 130 size brushed motor, 2s compatible | 1 | | | SG90 micro servo | 1 | | | Compression spring, ~4mm OD, ~6mm length | 2 | For front suspension. Softer springs are better. Retractable pen springs cut to ~6mm can work, but are a bit stiff. | | Compression spring, ~4mm OD, ~20mm length | 2 | For rear suspension. Uncut retractable pen springs work for this. | | Venom Fly 300mah 2s battery (JST connector) | 1 | Batteries up to 45x23x16mm should fit | | Small brushed ESC, 2S compatible | 1 | | Small radio receiver | 1 | 2 channels or more, smaller than approx 34x22x13mm. Flysky GR3E works if decased. | Print Settings Printer: FuseBox2R Rafts: No Supports: No Resolution: 0.1-0.15mm Infill: 25-30% Notes: Print tray1.stl at 0.15mm and tray2.stl at 0.1mm layer heights. Make sure your printer has good layer adhesion, as some parts have a small bed contact area and can warp or detach easily. Support should not be used for any of the parts. The front wheels have a cylindrical piece of built-in support on the inside of the wheel. To remove, use pliers to gri