Zcar2

3D-printed 1:28 scale 4WD drift car

Overview

zcar2

A nearly fully 3D-printed, 4WD RC drift car. 1:28 scale, fits 90mm (M) wheelbase MINI-Z shells*.

*Note: The front section of the chassis is relatively tall and won't fit certain shells, such as the RX-7 FD. Verified compatible with the AE86 shell. Test drive: https://youtu.be/90DoZpYbfy4

U-joint closeup: https://youtu.be/g_EzM2HMQvg

Some parts in this design are quite challenging to print - make sure you have a well-calibrated printer before attempting.

Features:

• Fully indepdendent sliding suspension
• 4WD drivetrain with printed U-joints (no differentials)
• Mid-mounted battery and motor - approx 50-50 weight distribution
• Parallel steering geometry for drifting
• Uses common M3 fasteners, locknuts everywhere
• TPU printed tires

Non-printed Parts

Part	Quantity	Notes
M3x10mm button head screw	8
M3x8mm button head screw	7
M3x12mm button head screw	1
M3x18mm button head screw	1
M3 lock nut	17
MR105 bearing	8
130 size brushed motor, 2s compatible	1
GH-S37D 3.7g servo	1
Compression spring, ~4mm OD, ~4mm length	4	Softer springs are better. Springs from multicolor retractable pens work well here when cut to length. Ordinary pen springs are too stiff.
Venom Fly 300mah 2S battery	1
Small brushed ESC, 2S compatible	1
Small radio receiver	1	2 channels or more. Flysky GR3E works if you remove its case.
MINI-Z shell, M wheelbase	1	Tested with Kyosho MZQ101 AE86 shell

Assembly

Todo

Files in this package

• CAD source: axle bearing block front.stl, axle bearing block rear.stl, axle bevel gear (print 2).stl, chassis bottom plate.stl, chassis top plate.stl, driveshaft bevel gear (print 2).stl, driveshaft spur.stl, tire (print 4).stl, wheel (print 4).stl, wheel bearing block 1 (print 2).stl, wheel bearing block 2 (print 2).stl, zcar2.stl (+14 more)
• Images: zcar2.png

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Source & license

• Original author: alexyu132
• Source repository: https://github.com/alexyu132/zcar2
• License: GPL-3.0

Imported into the CommunityCAD Archive with attribution preserved. All rights remain with the original author under the stated license.