Spring Car – Wind-up Mechanism - 4x4
Print Profile(15)




Bill of Materials
Description
Hello everyone, here is my latest creation: a small spring-powered, 4-wheel drive car, in a minimalist, easy-to-assemble version. It can be used for educational purposes (mechanics, math, etc.) or simply as a toy. It will allow you to understand the operating principles of a spring-powered car without risk of error (because everything is detachable). It is also a first step towards my more sophisticated models (feel free to check them out: https://makerworld.com/fr/models/733706-hot-rod-v8-spring-engine#profileId-665458 )
No glue, no purchased parts, no tools (even the 10mm wrench is 3D Printed). Assembly is simple and can be done by children from 8/9 years old. Once assembled, it can be handled by children from 4 years old. (See video)
These cars are tested and approved by my own children!!!
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If you like this model, feel free to click HERE. Thank you for your support, it helps me create new models
This small car is designed to be easily assembled and disassembled so that you can change the transmission (3 transmissions available: short – standard – long), to switch the transmission only to the front wheels or only to the rear wheels or to all 4 wheels. This type of assembly also allows you to change any broken part
For better grip and for assembly, it is necessary to print the tires in TPU but TPU for AMS, PLA and TPU 64D will not work because you will not be able to insert them onto the rims. I use TPU 60A but you can go up to 85A. If you don't have the option to print TPU, you can make the tires with small elastic bands, O-rings, or bicycle inner tubes (the rim's groove base has a Ø of 27.5mm). You will find new rims for mounting CyberBrick tires in a separate print profile (use the nomenclature to find them more easily)
I have created detailed assembly instructions to guide you during assembly. At the end of these instructions, you will find all the necessary data for creating math exercises related to this spring-powered car
HAVE FUN!!!
Update on 09/16/2025: increased functional clearances on all axes (from 0.3mm to 0.45mm clearance)
NEW!!! 06/17/2026: Added print profile for rims to install CyberBrick rubber tires
New model with a body : https://makerworld.com/fr/models/2238342-wind-up-car-hot-rod-wind-up-mechanism#profileId-2436133
(During assembly, keep an eye on young children: there are many small parts that pose a choking hazard)
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Documentation (1)
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.






























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