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3D Printing Guides

A comprehensive guide for 3D Printed RC Car

by MadisonJames on Oct 16, 2024
A comprehensive guide for 3D Printed RC Car

Introduce

In the world of remote-controlled (RC) cars, customization and performance are key. 3D printing has opened up new possibilities for enthusiasts, allowing them to design and create custom parts that enhance both aesthetics and functionality. This comprehensive guide explores the materials, techniques, and tips needed to successfully 3D print parts for your RC car. Whether you're looking to improve speed, durability, or simply add a personal touch, this guide will provide you with the insights and knowledge to transform your RC car into a unique masterpiece.

Printing Tips and Techniques

Optimal Print Settings

  • Layer Height: 0.1-0.2mm for detailed parts, 0.2-0.3mm for larger structural components
  • Infill: 20-30% for most parts, 50-100% for high-stress areas
  • Wall Thickness: Minimum 1.2mm (3 walls) for durability
  • Top/Bottom Layers: At least 4 for a smooth finish and strength

3D printer filaments for RC Car

3D printing has revolutionized the world of RC cars by enabling enthusiasts to create custom parts with specialized filaments. Materials like PLA, ABS, and PETG are popular choices due to their durability and ease of use. PLA is great for beginners, offering simplicity in printing, while ABS provides strength and heat resistance, ideal for more demanding components. For those seeking flexibility and impact resistance, TPU is an excellent choice, perfect for tires and shock-absorbing parts. With these materials, enthusiasts can innovate and personalize their RC cars, enhancing performance and aesthetics.

Filament

Pros

Cons

Best For

PLA

Easy to print Low warping Biodegradable

Low heat resistance Brittle

Decorative parts Prototyping

PETG

Durable Chemical resistant Good layer adhesion

Prone to stringing Can be hygroscopic

Functional parts Outdoor use

ABS/ASA

High strength Heat resistant Can be vapor smoothed

Difficult to print Strong odor High shrinkage

Mechanical parts High stress components

TPU

Flexible Abrasion resistant Chemical resistant

Difficult to print Requires slow speeds

Tires Bumpers Flexible joints

Nylon

Very strong Wear resistant Flexible when thin

Hygroscopic Difficult to print Requires high temps

Gears Hinges High wear parts

Comparison of Filament Types

Post-Processing Techniques

  • Sanding: Start with 120-grit, progress to 220, then 400 for a smooth finish
  • Priming and Painting: Use automotive primer and paints for best results
  • Vapor Smoothing: For ABS parts, use acetone vapor to achieve a glossy finish
  • Heat Treatment: Anneal PLA parts in an oven (50-60°C) to increase strength

Electronics and Components Guide

Essential Components

  • Motor: 540 size brushed or brushless motor (2000-3000KV for 1/10 scale)
  • ESC (Electronic Speed Controller): 30-60A, compatible with your motor type
  • Servo: High-torque (5-10kg/cm) for steering
  • Receiver: 2.4GHz, compatible with your transmitter
  • Battery: 2S-3S LiPo (7.4V-11.1V) for most 1/10 scale cars
  • Transmitter: Minimum 2-channel, preferably with model memory

Wiring and Connection

  • Use appropriate gauge silicone-insulated wire (14-16 AWG for power, 22-24 AWG for signal)
  • Solder all connections and use heat shrink tubing for insulation
  • Install a power switch between the battery and ESC for safety

Mounting Tips

  • Use nylon screws and lock nuts to secure electronics
  • Apply double-sided foam tape for vibration dampening
  • Ensure proper ventilation for the ESC and motor to prevent overheating

Top 20 3D Printable RC Car Models

1. Delorean DMC-12/BTTF Time Machine 3D Printed RC Car

 

Model URL:
https://cults3d.com/en/3d-model/gadget/delorean-dmc-12-bttf-time-machine-3d-printed-rc-car-brett

This model brings the iconic Delorean from Back to the Future to life as a fully functioning RC car. With intricate details like gull-wing doors and a futuristic dashboard, this 3D printed model is perfect for movie fans and hobbyists alike.

2. RC 1/10 Dodge Challenger

 

Model URL:
https://cults3d.com/en/3d-model/game/rc-1-10-dodge-challenger
The 1:10 scale Dodge Challenger offers a stunning replica of the iconic muscle car. It's designed for drag racing or casual street cruising, with the classic aggressive look that muscle car lovers adore.

3. OpenRC F1 Car - 1:10 RC Car

 

Model URL:
https://www.thingiverse.com/thing:1193309
The OpenRC F1 car is a meticulously designed Formula 1 racer in 1:10 scale, delivering an authentic racing experience. With its aerodynamic design and high-speed capabilities, it's perfect for those looking to race their 3D printed RC cars.

4. DIY RC Street Racing Car: One Week Classroom Project

 

Model URL:
https://www.thingiverse.com/thing:2653508
This DIY street racing car is designed as an educational project that can be completed in a week, making it great for classroom or beginner hobbyists. The simple design ensures a functional yet accessible build, perfect for learning about RC cars and 3D printing.

5. Martian Rover

 

Model URL:
https://www.thingiverse.com/thing:1318414
Inspired by space exploration, this Martian Rover is ideal for off-road adventures. It’s durable and designed to traverse rough terrain, offering a unique and exciting take on RC cars for those looking to explore new landscapes.

6. MyRCCar Mustang GT500 1967 1/10 On-Road RC Car Body

 

Model URL:
https://cults3d.com/en/3d-model/game/myrccar-mustang-eleanor-style-1-10-on-road-rc-car-body
This classic Mustang GT500 body is a stunning 3D replica of the 1967 muscle car. Its vintage curves and detailed design make it a great choice for on-road RC cars, offering both speed and nostalgia.

7. OpenRC 1:10 4WD Touring Concept RC Car

 

Model URL:
https://cults3d.com/en/3d-model/game/openrc-1-10-4wd-touring-concept-rc-car
This 4WD Touring RC car combines high performance and a sleek chassis design for competitive racing. It's built for fast, high-speed racing with great handling, making it a top choice for RC racing enthusiasts.

8. PROTO36 RC Car Chassis

 

Model URL:
https://cults3d.com/en/3d-model/game/proto36-rc-car-chassis
The PROTO36 chassis offers a solid foundation for building your custom RC car. It’s highly customizable and compatible with a wide range of RC components, making it a versatile choice for both beginners and experienced builders.

9. OpenRC 1:10 4WD Truggy Concept RC Car

 

Model URL:
https://cults3d.com/en/3d-model/game/openrc-1-10-4wd-truggy-concept-rc-car
The OpenRC Truggy is built for off-road racing and rugged terrain, featuring a tough, durable design with 4WD capabilities. This model is great for RC enthusiasts who love to take their cars off the beaten path.

10. RS-01 Ayrton Senna’s 1993 McLaren MP4/8 Formula 1 RC Car

 

Model URL:
https://cults3d.com/en/3d-model/various/rs-01-ayrton-senna-s-1993-mclaren-mp4-8-formula-1-rc-car
This RC car pays tribute to Ayrton Senna's legendary 1993 McLaren MP4/8 Formula 1 car. Perfect for F1 fans, this model combines historical significance with high-speed racing performance.

11. Ford Mustang GT500 1967 (RC Car)

 

Model URL:
https://cults3d.com/en/3d-model/various/ford-mustang-gt500-eleonor-rc-car
Another tribute to the iconic Ford Mustang GT500, this 1967 model is perfect for on-road RC racing. The model includes fine details, making it an eye-catching addition to any RC car collection.

12. Tesla Roadster (RC Car)

 

Model URL:
https://cults3d.com/en/3d-model/game/tesla-roadster-rc-car
This Tesla Roadster model brings a futuristic flair to the RC world. Known for its speed and sleek design, the Tesla Roadster makes for a high-performance and visually striking RC car.

13. 1991 Mazda 787B 3D Printed RC Car

 

Model URL:
https://cults3d.com/en/3d-model/various/1991-mazda-787b-3d-printed-rc-car
This model replicates the 1991 Mazda 787B, a legendary Le Mans racing car. With its low-profile body and aerodynamic design, it’s an ideal RC car for high-speed racing enthusiasts.

14. Porsche 911 (992) GT3 RC Car

 

Model URL:
https://cults3d.com/en/3d-model/various/porsche-911-992-gt3-rc-car
This Porsche 911 GT3 RC car model is an elegant, high-performance replica of the iconic German sports car. Known for its speed and handling, the 911 is perfect for those looking to race or display an exotic RC car.

15. MyRCCar 1/10 MTC Chassis Rigid Axles Version

 

Model URL:
https://cults3d.com/en/3d-model/game/myrccar-1-10-mtc-chassis-rigid-axles-version-customizable-chassis-for-monster-crawler-or-scale-rc-car
This customizable chassis is perfect for building monster trucks, crawlers, or scale RC cars. Its rigid axle design offers stability and durability for off-road adventures, giving you the flexibility to build a variety of RC vehicles.

16. RC Car Hot Rod

 

Model URL:
https://cults3d.com/en/3d-model/art/rc-car-hot-rod-limo
The Hot Rod Limo combines retro design with modern RC capabilities. This stylish RC car is perfect for enthusiasts looking to stand out with a unique, vintage-inspired vehicle.

17. RC Car 'Batmobile 1989'

 

Model URL:
https://cults3d.com/en/3d-model/game/rc-car-batmobile-1989
Bring Batman’s iconic 1989 Batmobile to life with this detailed RC car model. Sleek, stealthy, and undeniably cool, this car is a must-have for any fan of the Caped Crusader.

18. 1.9 Beadlock Wheel Fiat Panda Old RC Car Axial TRX4 MST

 

Model URL:
https://cults3d.com/en/3d-model/various/1-9-beadlock-wheel-fiat-panda-old-rc-car-axial-trx4-mst
This model features beadlock wheels designed for the classic Fiat Panda. These wheels are perfect for RC crawlers, offering both durability and vintage style.

19. RC Car 3D - Toy Story

 

Model URL:
https://cults3d.com/en/3d-model/various/rc-car-3d-toy-story
This Toy Story-inspired RC car brings the playful charm of the beloved movie to your 3D printed RC collection. It’s a fun model for fans of all ages, perfect for both racing and display.

20. RS-LM 2014 Audi R18 E-Tron Quattro “The Ali”

 

Model URL:
https://cults3d.com/en/3d-model/various/rs-lm-2014-audi-r18-e-tron-quattro-the-ali
This Audi R18 E-Tron Quattro model is a Le Mans-inspired masterpiece, featuring sleek lines and a powerful design. Perfect for racing, this RC car is built for speed and performance.

Performance Tuning Guide for 3D Printed RC Cars

Weight Distribution

  • Aim for a slight rear bias (55/45 rear/front) for better acceleration.
  • Use lightweight materials for upper body parts to lower the center of gravity.
  • Position the battery and electronics for optimal balance.

Aerodynamics

  • Design a smooth underbody to reduce air resistance.
  • Add a rear diffuser to increase downforce without significantly increasing drag.
  • Experiment with different spoiler designs to find the best balance of downforce and speed.

Suspension

  • Adjust shock oil weight and spring rate to match your driving style and track conditions.
  • Fine-tune camber and toe settings for improved cornering stability.
  • Consider printing flexible parts (like shock towers) with TPU for better vibration absorption.

Drivetrain

  • Optimize gear ratios for your motor and typical racing conditions.
  • Use high-quality bearings to reduce friction and improve efficiency.
  • Consider designing a lightweight, efficient spur gear and pinion setup.

Tires

  • Design and print custom tire treads for specific track surfaces.
  • Experiment with different tire compounds (using flexible filaments) for varying grip levels.
  • Ensure proper tire balancing for smooth operation at high speeds.

Motor and ESC

  • Choose a motor KV rating appropriate for your car's size and intended use.
  • Ensure proper motor timing and gearing for a balance of speed and acceleration.
  • Use a high-quality ESC with programmable features for fine-tuning performance.

Chassis Design

  • Optimize chassis flex for better handling characteristics.
  • Design structural components with internal lattices to reduce weight while maintaining strength.
  • Consider modular designs for easy upgrades and repairs.

Electronics Cooling

  • Design efficient air channels in the body for better cooling.
  • Use heat sinks on motor and ESC, potentially integrating them into 3D printed parts.
  • Consider active cooling solutions like small fans for high-performance setups.

Print Settings

  • Use higher infill percentages for structural components to increase strength.
  • Adjust layer height and print speed for optimal surface finish and part strength.
  • Experiment with different materials (like carbon fiber-infused filaments) for critical components.

Safety Considerations for 3D Printed RC Cars

While 3D printing provides endless possibilities for creating custom RC cars, safety is a crucial aspect when working with batteries and electronics.

Battery Safety

RC cars are often powered by LiPo (Lithium Polymer) or NiMH (Nickel Metal Hydride) batteries, which require proper care and handling:

  • Charging: Always use the correct charger for your battery type, and never leave batteries unattended while charging.
  • Storage: Store batteries in a cool, dry place, away from flammable materials.
  • Handling: Be cautious of punctures or damage to batteries, as this can cause them to leak or ignite.

Heat Management

Certain 3D printed materials, like PLA, can warp under high temperatures. If your RC car uses powerful motors or electronics, opt for heat-resistant materials such as ABS or PETG to avoid deformation. Proper ventilation and cooling are also key to maintaining performance.

Electrical Safety

Ensure that all connections in your car's electronics are insulated and secure. Short circuits can occur if wires are exposed or improperly connected, potentially damaging components or causing fires.

By following these safety guidelines, you can enjoy your 3D printed RC cars safely and effectively.

FAQ

Is it possible to 3D print a car?

Yes, it is possible to 3D print many components of a car, including the body, chassis, and interior parts. Several companies have successfully built full-sized cars using 3D printing technology, though they often combine 3D printed parts with traditional manufacturing methods for the engine, electrical systems, and other mechanical components.

How long will it take to 3D print a car?

The time it takes to 3D print a car depends on the complexity and size of the model. For a full-sized car or large-scale components, it can take anywhere from a few days to several weeks of continuous printing. For RC cars, a smaller-scale project, it typically takes between 20 to 100 hours, depending on the model, material, and print speed.

How long did it take to 3D print a Lamborghini?

The 3D printed Lamborghini project, led by a father-son duo, took around 2 years to complete. This included time for designing, 3D printing various components, assembling the car, and integrating mechanical parts. The project required extensive dedication, with the body and parts being printed using a variety of materials and techniques.

Tags: RC car
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