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Hi there, I am looking to builder a fun custom project. I have a technical concept for an RC truck that needs to actively balance carrying a heavy payload while maintaining a decent top speed. I am interested in testing mechanisms like a custom multi-speed gearbox or an active suspension adjustment system to handle the changing weight. The Deal: I have a budget to fully cover the parts, plus your fees. I will buy all the components you need directly from AliExpress, Banggood, or Amazon and ship them straight to your address. You get to keep the physical truck and all the hardware when the project is done! What I need from you: The digital design files or code used. A few videos demonstrating the truck driving fast while carrying the payload weight. If you are a scratch-builder or custom fabricator interested in taking this on, please reply to this thread or send me a Private Message (PM) with a picture or video link of a past build you've done. Thanks! 1 - Physical size? The smaller it has to be the more difficult it is to cram 10 pounds into a 5 pound sack. As a truck to be 1/10 scale is the most suitable one. Can be 1/12 if possible to achieve. 2 - How heavy is a heavy payload? One pound on a small scale truck is heavy, fifty pounds on a larger truck may be light. The payload on the boot ( preferred ) or as trailer to be 5kg roughly. 3 - What's a decent top speed? 60mph at 1/24 scale is about 3,5 feet per second. At 1/4 scale that's 22 feet per second. Not exceeding 20-25 km/h for the scale mentioned above. Stability is key. 4 - Any particular configuration? 4X2, 4X4, 6X4, 6X6, ETC.? That is negotiable despite the thought that 6x4 could be the optimum choice taking into account the payload.
Project ID: 40735535
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38 freelancers are bidding on average €131 EUR for this job

Hi, I am an embedded systems engineer with over 16 years of experience developing electromechanical systems, motor controls, custom mechanisms, and complete consumer-grade products from concept through working prototype and production preparation. I can design and build a stable 1/10-scale RC truck capable of carrying roughly 5 kg at up to 20–25 km/h. I would begin by evaluating payload position, center of gravity, torque, braking, gearing, suspension, and whether 6x4 or another drivetrain offers the best balance of traction and stability. I can then select readily available components, assemble and tune the truck, develop any required control firmware, and provide the digital design files, source code, bill of materials, and demonstration videos. Similar client projects cannot be shared publicly, but I can show relevant work privately. My bid assumes parts are purchased separately as described, and the 14-day build period begins once all components arrive. Is the truck intended mainly for smooth pavement, and must the full 5 kg payload sit entirely on the rear bed? Please contact me to discuss details.
€250 EUR in 14 days
7.6
7.6

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Expert Mechanical design Engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Product Design | 3D CAD Modelling Finite Element Analysis | Computational Fluid Dynamics Thermal analysis | Structural analysis HVAC and Heat load calculation We are proficient in using following software’s: AUTOCAD SOLIDWORKS ABAQUS ANSYS APDL | ANSYS Fluent MATLAB | SIMULINK COMSOL Multiphysics FUSION360 | CATIA We have good command over REPORT WRITING, we can show you many samples of our previous reports. We can discuss further details in the message box.
€140 EUR in 7 days
6.0
6.0

With my diverse skill set in 3D modeling and electronics, I am confident that I can not only provide you with the precision-controlled RC car design you need but also add a unique perspective due to my extensive experience in deploying AI systems and IoT hardware. Having worked within existing workflows, I understand the importance of a seamless integration and practicality of our output. My proficiency in React, Flutter, Django, Node, combined with the ability to deploy on AWS, GCP, Azure ensures we will have an automated system that performs at its best on your anticipated scale of 20-25 km/h. Furthermore, I'm accustomed to employing cost-efficient methods without compromising quality. This aligns with your budget concerns as I can acquire necessary components from alternative platforms like AliExpress, Banggood or Amazon while guaranteeing excellent and tested quality. Lastly, as a bonus for choosing me for this project, beyond the digital design files/codes used and videos demonstrating the car's outstanding ability, you not only get a completed project but also a lasting hardware solution for future applications or explorations. There's no doubt that my past works stand as a testament to my expertise and commitment to delivering high-quality custom projects. Choose me for unmatched skills and an undying passion to achieve perfection in every project.
€250 EUR in 7 days
5.5
5.5

Hi, I'm Juli, a 3D design specialist. I've read your job description and I’m confident I can help. I have solid experience with SolidWorks, Fusion 360, and rendering tools like KeyShot. I focus on precision, fast delivery, and clear communication. I understand the requirements of Precision-Controlled RC Car Design and how to approach it effectively. You can also see similar work on my portofolio. Looking forward to hearing from you. Best regards, Juli
€100 EUR in 1 day
5.0
5.0

⚡ I JUST COMPLETED A SIMILAR PROJECT. I have just developed a custom RC vehicle that balances payload and speed for an outdoor adventure company. You want a truck that can handle a 5kg payload while achieving a top speed of 20-25 km/h. I’ll create a 1/10 scale design with a 6x4 configuration, ensuring optimal stability and performance. I’ll also incorporate an active suspension system, which is often overlooked in similar builds. I will keep the process clear and smooth, providing regular updates and open communication throughout. MESSAGE ME, WORST CASE YOU GET FREE ADVICE. Regards, Stefan.
€200 EUR in 14 days
4.8
4.8

I am Ahmad. I have extensive experience in mechanical CAD, mechanism design, product development and functional prototyping. I can develop your custom RC truck around the key requirement: safely carrying approximately 5 kg payload at 20–25 km/h while maintaining stable handling. I would target a 1/10-scale platform initially, with 1/12 considered only if the packaging and payload requirements can realistically be achieved. I’ll evaluate 4×4, 6×4 and other configurations, with 6×4 as one candidate for improved payload distribution. Deliverables Complete 3D CAD chassis and mechanical assembly Payload platform/trailer interface Suspension and load-management mechanism Drivetrain and gearing design Motor/gearbox selection recommendations Steering and wheel-end integration Component mounting design Manufacturing/3D-printing files BOM and assembly documentation Control/firmware architecture where required Prototype testing and adjustment Driving videos demonstrating payload performance Editable CAD/source files and code Development Milestones I’ll prioritize stability, structural reliability and controlled handling over simply chasing maximum speed. The final design can be tested progressively before full-load/high-speed operation. Muhammad Ahmad
€40 EUR in 3 days
4.2
4.2

I focus on creating practical, high-performance designs. Balancing a heavy payload while keeping speed can be tricky. If not done right, the truck might struggle with stability, leading to poor performance and frustration. I can develop an innovative design that incorporates a multi-speed gearbox and an active suspension system. This will ensure the truck maintains stability while carrying the 5kg payload at speeds up to 25 km/h. Plus, I’ll provide detailed digital design files and engaging videos of the truck in action. I’ve tackled similar projects, ensuring functionality meets creativity. You’ll be working with someone who values transparency, responsiveness, and delivering exactly what you need—creating a truly useful RC truck that exceeds your expectations.
€100 EUR in 7 days
3.6
3.6

Are you looking for a mechanical engineer and custom builder who can develop a stable, heavy-payload RC truck with a practical balance between load capacity, speed, and suspension performance? I have 5+ years of experience in mechanical CAD, product design, and engineering, with a focus on mechanisms, drivetrain design, and functional assemblies. I can develop a 1/10-scale 6×4 or 6×6 concept around the 5 kg payload requirement, prioritizing chassis strength, weight distribution, suspension travel, traction, and controlled operation at 20–25 km/h. I’ll evaluate suitable motors, gearing, differential arrangements, and adjustable suspension options before finalizing the design. What I’ll deliver 3D CAD chassis, drivetrain, gearbox, and suspension design. Component selection and purchasing specifications. Editable CAD files, assembly documentation, and control code where applicable. Prototype assembly and testing with the specified payload. Videos demonstrating loaded driving, stability, and speed performance. I suggest starting with a design and component-selection milestone, followed by procurement, assembly, and loaded testing. The final budget and timeline will depend on the selected scale, hardware availability, and fabrication complexity Please confirm whether you prefer a 1/10-scale 6×4 configuration and whether the 5 kg payload must be carried entirely on the truck bed rather than using a trailer. Best regards Bilal.
€40 EUR in 3 days
4.1
4.1

I’d be interested in taking on this RC truck project because the challenge is less about outright speed and more about achieving stable, controllable performance with roughly a 5 kg payload at 20–25 km/h. I’d approach it as a complete mechanical/electronic system, starting with load distribution, center of gravity, wheelbase, axle loads, motor torque, gearing, braking, suspension travel, and thermal limits before selecting components. For a 1/10-scale platform, I’d evaluate 6x4 against 6x6/4x4 layouts and determine whether a multi-speed transmission actually provides enough benefit versus a high-torque brushless drivetrain with optimized reduction; similarly, adjustable preload/damping or an active suspension mechanism can be explored if testing shows it improves loaded stability. I’m comfortable with CAD/mechanical design, drivetrain calculations, motor/ESC selection, microcontroller-based control, sensors, and iterative prototype testing. I can provide the CAD/design files, firmware/source code, BOM and configuration details, along with requested driving videos demonstrating the final payload and speed tests. I would first produce a proposed architecture and AliExpress/Banggood/Amazon parts list for approval before anything is purchased.
€50 EUR in 2 days
3.6
3.6

As you can see, my diverse skill set not only aligns perfectly with the technical needs of your project but also mirrors my deep love for the kind of cross-disciplinary innovation that your RC truck design demands. My proficiencies in software development, electronics engineering, and 3D design places me in the rare sweet spot where I can build and iteratively test precisely the mechanisms you're interested in exploring - custom multi-speed gearbox or an active suspension adjustment system - to optimize weight distribution and maximize truck performance even with varying payloads. Beyond just being conversant with the needed programming languages and softwares as listed, my hands-on practical experience is extensive - from analog and digital circuit designs to PCB layout and FPGA development using Verilog and VHDL - exactly those skills you'd find so crucial dealing with hardware-based RC trucks like this one. Through all my projects, I strive to provide digital design files or code used along with videos demonstrating full capabilities of solutions I deliver. I will do same for your project. And don't forget, even after completion of the project, you will have a fully functional cutting-edge RC truck that applies the latest tech advancements in its design. My devotion to excellence ensures delivery above and beyond expectations. Let's create this masterpiece together!
€150 EUR in 7 days
3.8
3.8

I'm delighted by your exciting RC Car project and I'm Pankaj, an adept 3D designer with over a decade of experience. Here's why my skills are a perfect fit for your needs. My expertise in 3D modeling and design using software such as AutoCAD and 3DMax will be critical to successfully incorporating and testing the custom mechanisms you've mentioned - like the multi-speed gearbox or active suspension adjustment system. As a result, you can expect precise designs that truly translate into effective, high-performance features. Lastly, I'd like to highlight my extensive knowledge working on projects requiring careful calibration of speed and weight, ensuring optimal performance. For example, I have successfully built and balanced various scaled models of vehicles that dupe their real-life counterparts in terms of efficiency, stability and top speed running surprisingly all-wheel-drive systems! Partnering together, we'll develop a cutting-edge RC Truck that defies expectations; delivering unmatched performance while carrying hefty loads convincingly! Let's start building this joyride today!
€140 EUR in 1 day
3.9
3.9

Hi, I will start with the real constraint here: 1/10 scale, around 5 kg payload, 20–25 km/h, with stability more important than outright speed. First I’d work out chassis layout, weight distribution, centre of gravity, axle loading, motor torque, gearing, battery size, and suspension setup. I’d also compare 4x4 vs 6x4 before locking the parts list. Once the hardware is selected, the build can be tuned under load and tested at speed. I can provide the digital design files, setup/code, BOM, and test plan. I won’t pretend I’ve built this exact RC configuration before, but the mechanical/3D design and system-planning side is something I can handle carefully. Can you share the payload dimensions and whether the 5 kg load will always sit in the truck bed or sometimes be carried on a trailer? Syed Basit
€90 EUR in 3 days
2.3
2.3

With a strong background in RF systems and microwave engineering, my team and I are ready to tackle the challenges of your custom RC car project. We have extensive experience in electronics and mechanical engineering, which will be essential for designing a precise active suspension adjustment system or multi-speed gearbox for your truck's varying payload needs. This expertise combined with our skills in 3D modeling allows us to envision and materialize complex concepts accurately. Moreover, we actively contribute to postgraduate studies, including Thesis Design & Experimental Validation. This goes hand in hand with actualizing your vision for this truck and delivering on all its functionalities. Your digital design files or code will always be delivered promptly; as professionals, we understand how vital transparency and efficient communication is during such projects. As for the fun part, delivering videos demonstrating the truck's performance will be our little bonus, showcasing our joint success. Lastly, choosing us means you get not only the finished product but also access to professional training courses in areas that may interest you down the line: RF & Microwave Engineering, Antenna Design & EM Simulation (CST & HFSS), Radar Systems Fundamentals & Applications, High-Frequency PCB Design, and Embedded Systems Programming. We are confident that our skillset and enthusiasm towards precision-controlled RC cars make us an ideal fit for your project.
€140 EUR in 7 days
2.5
2.5

A multi-speed gearbox on an RC truck is a tough call at $285 budget, since a shifting gearbox adds a servo, more backlash and more failure points. Active suspension on a payload-sensitive load may get you further for the same money. I built motorised positioning with feedback and firmware for RP2040 boards, driving actuators from sensor input. What payload weight and target top speed are you aiming for?
€90 EUR in 14 days
1.3
1.3

The requirement for an active suspension adjustment system to handle changing weight is the concrete constraint here. I will build this using a combination of servo motors controlled by an Arduino Nano, also I will design the custom multi-speed gearbox in SolidWorks. The gearbox will be 3D printed and also I will use off-the-shelf DC motors for propulsion. I will assume the payload weight will be within 1kg and the desired top speed is around 20 km/h until you specify otherwise. What is the maximum operating distance you require for the RC control? Preferred Freelancer here, 5.0 over 10 reviews, no missed deadline and nothing over an agreed price yet. I need you to confirm the desired payload weight.
€188 EUR in 21 days
1.4
1.4

GET IT DONE RIGHT FROM THE START! Your mission to design a precision-controlled RC truck is spot-on. Balancing a heavy payload while achieving decent speed presents challenges, and I can help ensure yours won’t. I’ll leverage my expertise in custom RC vehicle design to create a robust solution. With my experience in mechanical engineering and fabricating, you’ll have a reliable truck designed to meet your specifications. Benefits include enhanced stability and optimized performance. Here’s how I’d approach it: 1. Develop a custom multi-speed gearbox for speed control. 2. Design an active suspension system for payload adjustments. 3. Create digital files and record performance videos. Could you clarify the maximum dimensions for the truck? Also, do you have a specific type of payload in mind? While I might be newer to Freelancer, I bring over 5 years of experience in RC design and fabrication. I’d be happy to offer insights on your project, even if we don’t work together. Kind regards, EnriqueHR
€100 EUR in 7 days
1.0
1.0

EVEN IF YOU DON’T HIRE ME, YOU’LL WALK AWAY WITH A FREE CONSULTATION. Balancing a heavy payload while hitting a top speed of 20-25 km/h is no small feat, especially in a 1/10 scale truck. I specialize in custom builds and can create innovative solutions like a multi-speed gearbox and adaptive suspension to prevent instability under load. My approach focuses on enhancing performance and reliability, ensuring smooth operation even at high speeds. Here’s how I would approach it: - Develop custom design files and code for stability. - Test various gearbox configurations and suspension systems. - Create demonstration videos showcasing performance under load. While I might be newer to Freelancer, I bring over 5 years of experience in custom fabrication and several top-rated reviews to prove my reliability. Feel free to reach out for a friendly consultation on your project—no strings attached. Kind regards, Carly Z.
€150 EUR in 3 days
0.5
0.5

How would you like the truck to hold stability when payload shifts 5kg on the boot at ~20–25 km/h—through a gearbox change, active suspension adjustment, or both? I read that you may keep the rig 1/10 (or 1/12) and test mechanisms while maintaining speed without tipping. I’ll design a precision-controlled RC platform: select drive configuration (6x4 likely), layout powertrain and sensors, and develop firmware for closed-loop balancing using real-time control (ARM-class MCUs, C/C++). I can prototype logic for multi-speed gearing and/or adjustable suspension actuation, tuned for your scale constraints. You provide the physical components budget cover; you’ll buy parts from AliExpress/Banggood/Amazon and ship to my location. Next step: share your preferred scale (1/10 vs 1/12), whether payload is fixed or dynamically shifting, and any constraints on axle spacing. Then reply with your concept notes or references and I’ll confirm an implementation plan and timeline.
€140 EUR in 7 days
0.0
0.0

I’ll engineer and prototype a precision-controlled RC truck that keeps stability under a 5 kg (boot or trailer) payload while still achieving the target 20–25 km/h. We’ll start with a 1/10 or 1/12 platform, then implement active weight-compensation via a selectable gearbox strategy (multi-speed) or active suspension adjustment, validated with real sensor feedback (IMU/accelerometers) and closed-loop control tuned for roll and pitch at speed. You supply nothing but direction: you’ll fund parts (I’ll source from AliExpress/Banggood/Amazon to your address) and you’ll receive the complete physical build plus digital code/design files. I’ll deliver a concise test plan, safety checks for motor/ESC/current draw, and at least a few driving videos showing fast runs with the payload. Share a picture/video link of a past custom build and we’ll scope scale, drivetrain (4x4/6x4/6x6), and component list together—send me a PM now.
€140 EUR in 7 days
0.0
0.0

What’s the fastest way to keep a payload-stable RC truck at 20–25 km/h without sacrificing speed? By combining precise chassis/servo control with tuned drive traction—then validating with real runs. I can design the embedded control logic and electronics to actively compensate for the shifting 5kg boot payload, using either a multi-speed gearbox concept (control + sensing) or active suspension adjustment (IMU/accelerometer feedback) for stability. Can we size it tightly and still fit the payload? For 1/10–1/12 scale 4x2/4x4 options, I’ll propose an architecture around your preferred 5kg rear/boot placement, minimize mass, and ensure safe power/thermal margins. Deliverables: digital design files/code, control schematics/PCB files, and a test plan aligned to your target top speed. You buy parts (AliExpress/Banggood/Amazon) and ship to my address; you keep the finished truck and hardware. Want a detailed build approach and timeline? Reply with the scale and drivetrain preference (e.g.
€140 EUR in 7 days
0.0
0.0

Amsterdam, Netherlands
Member since Sep 27, 2026
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