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

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:

Supports:

No

Resolution:

Infill:

25-30%

Notes: