Wiktor Wise
Building your own electric cart can be a fun and rewarding project, but it requires careful planning and research. The process involves sourcing parts such as motors, batteries, wheels, axles, and steering components, as well as designing and assembling the electrical systems. The cost of building an electric cart can vary, with some people managing to build one for around $750, while others spend closer to $1000. It is important to be creative and resourceful when sourcing materials, as it is possible to use recycled or repurposed parts to keep costs down. Building an electric cart can be a challenging project that requires perseverance and problem-solving skills, but the result is a unique, fun, and environmentally friendly mode of transport.
| Characteristics | Values |
|---|---|
| Cost | Around $750-$800 for parts, including shipping and tax. |
| Motor | 6.5-horsepower engine from Harbor Freight for around $160. |
| Steering Wheel | $23.99 from Amazon. |
| Front Wheels | 8-inch diameter solid rubber wheels from Harbor Freight for $23.97. |
| Axle | Around 1-inch thick to support an adult. |
| Chain | #35. |
| Sprockets | 12-tooth on the motor, 61-tooth on the axle. |
| Speed Controller | Housed in a 6"W x 8"L x 3"H aluminum project box. |
| Throttle | Hand throttle converted to a foot throttle designed with Tinkercad and printed using black ABS. |
| Voltage/Amperage/Wattage Meters | Wired in parallel or inline to battery power cables or after the controller. |
| Weight | Keep as light as possible for better performance. |
| Frame | Racing chassis, off-road chassis, or roll cages. |
| Power Source | 3 large gel cells in a rectangle configuration. |
| Brakes | Simple disc brake connected to a foot pedal at the front. |
| Build Time | 200+ hours. |
Explore related products
What You'll Learn
Planning and research
Firstly, define your final goal. Are you aiming for a specific speed or distance? Do you want to accommodate a certain weight or height of the driver? Having a clear understanding of your desired outcome will guide your decision-making throughout the process.
Next, be prepared to spend a significant amount of time researching and planning. This may include watching videos, reading guides, and seeking advice from online communities or forums. During this phase, you will identify the parts and tools you need, as well as any safety considerations. It is worth noting that building an electric cart can be a time-consuming and challenging project, so patience and perseverance are key.
When it comes to parts, you will need to source a motor, speed controller, throttle, charge port, battery charger, and batteries. You can find these components on websites such as Hyperpowersports.com, Aliexpress, or Amazon. Consider your budget and whether you can salvage any parts from old projects or purchases to keep costs down.
Additionally, you will need to decide on the type of wheels and axles. Ensure your wheels are sturdy, can handle lateral force, and have axles that can accommodate a differential for future motorization. You may also need to adapt the steering wheel to the steering column, so keep this in mind when sourcing parts.
Finally, don't be afraid to get creative and think outside the box. For example, one builder used a tiller steering arm made from old square steel tubing found in a dumpster. They also utilized motorcycle chain and gear parts from Tractor Supply to create a custom setup. Remember, building your own electric cart is a unique project, and you can tailor it to your specific needs and preferences.
Jamaica's Power Play: Electricity Before the United States
You may want to see also
Explore related products
Sourcing parts
Motor and Drivetrain:
- You can opt for a 6.5-horsepower engine, which can be purchased from stores like Harbor Freight for around $160. However, keep in mind that you will need additional parts to construct a functional electric cart around this engine.
- Consider purchasing an electric cart engine kit, such as the L-faster 24V36V 350W Electric Cart Engine Kit. This kit includes essential components like the motor, controller, accelerator pedal, and more.
- If you're converting a gas-powered cart, you might reuse the existing engine mount and opt for a motor with a similar mounting pattern, such as the GE 36V motor.
- For batteries, check out suppliers like Tayna Batteries, which offer 12V 20Ah mobility batteries.
Wheels and Axles:
- Harbor Freight offers affordable solid rubber wheels with an 8-inch diameter. However, keep in mind that their packaging may not be the most robust.
- If you require sturdier wheels, consider Samagaga, which provides wheels, axles, and mechanical drawings to aid in your construction.
- Ensure your axle thickness matches your wheel bore. Adult carts typically require axles around an inch thick, while cheaper wheels often have a 5/8ths bore.
- You may need to adjust your kart's design to accommodate different axle and wheel combinations, such as bolting wheels to hubs that slip over the shaft.
Steering and Controls:
- You can purchase a steering wheel from Amazon for around $24. Alternatively, you can attempt to design and 3D print your own, although this may require more printed parts than expected.
- For the throttle, you can convert a hand throttle to a foot throttle using Tinkercad designs and 3D printing. You can also purchase cheap throttle pedals from Amazon or design your own.
- A tiller steering arm can be fashioned from old 1" square steel tubing, which can sometimes be found in discarded commercial clothes racks.
Electrical Components:
- The speed controller, hand throttle, charge port, battery charger, and batteries can be sourced from websites like Hyperpowersports.com or Aliexpress.
- Voltage, amperage, and wattage meters can be wired in parallel or inline to your battery power cables to monitor your cart's power usage.
- Molex connectors are useful for connecting electrical components to the speed controller.
- To avoid short circuits, use heat shrink tubing around components like the battery indicator.
Remember to plan and research thoroughly before making purchases. Creating an electric cart can be a time-consuming and challenging endeavour, but the experience and sense of accomplishment are well worth the effort.
Fire and Electricity: A Dangerous Bathroom Combo
You may want to see also
Explore related products
Building the frame
Planning and Materials:
Start by determining the size of your electric cart. Consider your height and comfort. The cart should be spacious enough for you to sit and maneuver comfortably. Decide on the type of frame you want, such as a wooden or metal frame. Create a design or blueprint to guide your building process. Source the required materials, including metal conduit, pipe clamps, timber planks, or mechanical parts.
Assembly:
Begin assembling the frame by cutting and shaping the chosen materials to the desired dimensions. Ensure all measurements are accurate to achieve a sturdy structure. If you opt for a wooden frame, use a panel saw to cut the timber planks to size. If you're using metal conduit, consider using pipe clamps to secure the joints without welding. This method is more accessible and safer for beginners.
Reinforcement:
Reinforce the frame to ensure it can bear the weight of the cart's components and the rider. For wooden frames, consider using sturdy joints and brackets to enhance structural integrity. If you're using metal conduit, bolts can be used to reinforce the connectors and joints. Ensure that the frame is rigid and can withstand lateral forces without buckling.
Test and Adjust:
Once the frame is assembled, test its durability by applying weight gradually. Ensure that the frame doesn't bend or show signs of strain. Make any necessary adjustments to improve the frame's strength and stability. You may need to add additional supports or reinforce specific areas.
Finishing Touches:
Finally, add any finishing touches to your frame. This may include painting the frame with a rust-resistant paint to protect it from the elements. You can also add safety features, such as a seat belt bolted to the frame, a mechanical brake, and a kill switch, to ensure a safe riding experience.
Ice Harvesting: Pre-Electricity Refrigeration and Freezing Methods
You may want to see also
Explore related products
Electrical components
The electrical components of an electric go-kart include the motor, speed controller, hand throttle, charge port, battery charger, and batteries. When selecting a motor, it is important to size it based on the continuous horsepower for sustained performance and ensure that the controller and battery can handle the peak load for bursts. The speed controller is fastened inside an aluminium project box, with a flexible grommet on one side for wires and the charge port on the other. The key switch and battery indicator are placed on top of the project box, with heat shrink around the battery indicator to prevent short circuits. Molex connectors are used to connect all the electrical components to the speed controller.
The hand throttle can be converted into a foot throttle by disassembling the throttle and removing the battery indicator and speed limit switch. A foot pedal can be designed using Tinkercad and printed using black ABS. The pedal is fastened with two screws, and a spring is added for tension.
The battery pack's total amp-hour (Ah) capacity will depend on the desired range, performance, weight, and budget. Lead-acid battery packs are typically made with 6x 12V deep-cycle batteries in series, with a common amp-hour range of 100-200 Ah and a total pack rating of 72V @ 100-150 Ah. Lithium batteries offer higher usable capacity, with 24 x 3.2V, 100Ah LiFePO4 batteries providing 76.8V and 100Ah of usable energy.
The chain connecting the motor to the wheels must be properly tensioned, and the rear sprocket size is dictated by the motor. The brake is a simple disc brake connected to a foot pedal at the front. Keeping the weight of the go-kart as light as possible will result in better performance.
Drilling an Electrical Service Entrance: A Step-by-Step Guide
You may want to see also
Explore related products
Testing and troubleshooting
Testing the Electrical Components
Before turning on your electric cart, it is essential to test all the electrical components to prevent any potential hazards. Inspect all the connections between the components, such as the speed controller, hand throttle, charge port, battery charger, and batteries. Ensure that the Molex connectors are securely attached and that the wires are correctly fed through the flexible grommet in the project box. Check that the key switch and battery indicator are properly installed and protected with heat shrink to prevent short circuits.
Testing the Brakes
The braking system is a critical safety feature. Test the brakes by connecting the disc brake to the foot pedal using a threaded rod. Ensure that the brake engages smoothly and effectively when the pedal is pressed. Adjust the tension of the pedal, if necessary, by adding or adjusting the spring.
Testing the Throttle and Controller
Troubleshoot the throttle and controller by following the testing procedures specific to your electric cart's setup, such as a 4-wire or 6-wire throttle. If you experience issues with the throttle, such as hearing only a click when pressing it, consider testing with a different battery pack to isolate the problem. If the cart works with a different battery, your original battery pack may be defective. Additionally, bridging the controller's brake switch wires can help determine if the issue lies with the brake lever.
Testing the Performance
Once the basic functions are operational, test the performance of your electric cart. Keep the weight of the cart as light as possible to achieve better performance and longer distances. Monitor the motor temperature during operation and allow for cooling periods to prevent overheating. Test the cart's speed and acceleration capabilities in a safe, open area.
Troubleshooting Common Issues
If you encounter issues with your electric cart, refer to online resources and forums for specific troubleshooting steps. For example, if your cart suddenly stops working, check for any visible damage, such as rust or mechanical failures. Disassemble and inspect individual components, such as the throttle and controller, for any signs of malfunction. Ensure that all connections are secure and that the electrical components are compatible and properly installed.
Remember to exercise caution during all testing and troubleshooting procedures, and always refer to expert advice or seek professional assistance if you are unsure about any aspects of your electric cart's performance or safety.
Allstate Homeowners Insurance: Electrical Problems Covered?
You may want to see also
Frequently asked questions
The cost of building an electric cart varies depending on the materials used and the complexity of the design. A cheap electric cart can be built for around $750, while a more advanced cart can cost upwards of $800, excluding shipping and tax.
The materials needed include a motor, speed controller, hand throttle, charge port, battery charger, batteries, wheels, axles, a steering wheel, and a frame.
The materials can be purchased online from websites such as Hyperpowersports.com, Aliexpress, Amazon, and Harbor Freight. Some people also find parts in local stores or reuse parts from old vehicles or equipment.
Building an electric cart can vary in time commitment, with some projects taking around 200+ hours to complete. It is important to dedicate time to researching and planning before beginning the build to ensure a smooth process and avoid wasting time and money.
Yes, safety is a critical aspect when building an electric cart. It is important to ensure that the cart has a proper braking system, such as disc brakes, and that all electrical connections are securely insulated to prevent short circuits. Regular maintenance and allowing the motor to cool down after extended use are also important for safe operation.
