Riding a bike is very exciting for children. However, a ride on a four-wheeled motor vehicle can be even more delightful. To save money on its purchase, you need to know how to make a children's ATV with your own hands , achieving the necessary characteristics.
What to make it from?
The number of ideas is very large. But before you create a design described anywhere, you will have to decide on the basic goals . It’s one thing when you plan to just walk around the city or along main roads. And something completely different is transport for an older child or teenager, who can independently go into the forest on a long journey. Most often, the starting components are old motorcycles and various spare parts, but the desired application influences their selection according to their characteristics.
A homemade children's ATV can be as simple as you like. However, its main link - the frame - should be given increased attention.
Only durable and stable components should be used for its production. The main options are:
finished structure removed from another vehicle.
When making an ATV yourself, it is best to choose completely new wheels. Yes, it is sometimes quite expensive, but it turns out to be much more reliable and safer. For off-road use, you should choose engines with a wide tread and stamped wheels of at least the most minimal level.
The choice between circuits with a gasoline engine and an electric motor depends largely on personal preferences and which components are more convenient to use. Electrified vehicles for children are usually equipped with rear-wheel drive gearboxes - this configuration has repeatedly proven its advantages.
When assembling an electric ATV with your own hands, it is important to place the motor and battery in such a way that they are easy to reach if necessary . Body kits are sometimes taken from old unwanted copies of children's ATVs. But this is not always possible, and a self-made plumb line will be more attractive.
Important: even when making a homemade vehicle based on a chainsaw, factory brakes must be installed. It is unacceptable to skimp on the reliability of even the lowest-powered ATV for children!
Additionally, when making a walk-behind tractor from a chainsaw or any other “source materials” you will need:
seats (this is the minimum without which it is impossible to consider the device seriously).
ATV with four-wheel drive
To make it, you will need a steering system from a car, a drive from a manual transmission, suspension and differentials. The suspension, like the steering, can be removed from the car. In such cases, the frame is cooked completely from scratch, based on the size of the engine of the future ATV. On the front suspension, you should take into account the space for the drive gearbox.
Using automotive products purchased on the secondary market, you can relatively inexpensively assemble vehicles for difficult roads and rural areas. One of the budget options for the source is the Ural motorcycle, since it is inexpensive, has rear-wheel drive and a four-stroke engine. Due to its positive aspects, it is popular.
A self-made ATV is not only a convenient and practical vehicle, it is a reason for pride and an opportunity to demonstrate your skills. Outwardly, it may be inferior to factory designs, but in terms of its technical characteristics, home-made ATVs are no worse.
Perhaps the only negative (apart from the time spent, since doing what you love is never a burden) is the need to involve auto experts in order to obtain documents and be able to register the ATV.
A quad bike is actually any four-wheeled vehicle, since in Latin “quadro” means “four”. In the CIS, this name most often means all-wheel drive, representing a symbiosis of a motorcycle and a car. From a motorcycle, an ATV has adopted mobility, maneuverability, lightness, and speed, and from a car - excellent cross-country characteristics, power and controllability. The result is a unique vehicle designed for a variety of purposes.
The domestic market provides only foreign models of ATVs, the cost of which is often exorbitant. At the same time, you can easily find used motorcycles and cars on the secondary transport market at an extremely low price.
For example, the Ural motorcycle is large, bulky, heavy and power-hungry, has an excellent four-stroke engine with reverse gear and costs a penny. For this reason, it is much cheaper and more fun for enthusiasts to create their own designs of these SUVs.
A typical factory ATV - shiny, neatly built, strong and powerful.
Its homemade counterpart, which is slightly inferior in appearance, and even more so in terms of power.
Drawings with dimensions
This is what the optimal design of an electric children's mini-quad bike . The distance between the centers of the front and rear wheels is 0.665 m. The total length of the vehicle is 1.06 meters. The control stick is supposed to be used, not the steering wheel. You can also make a children's ATV 2.3 m long with a distance between the axles of 1.43 m.
The diagram shows the placement:
transmissions for front and rear wheels (3.5),
4x4 with car engine
A typical representative of the relatively small clan of ATVs with a car engine. The designer chose the most affordable and probably the most convenient option - a 33-horsepower two-cylinder engine from the Oka compact car. Its advantages over the Dnepr and Ural engines of similar power are greater durability and lower thermal load due to the presence of a liquid cooling system with a radiator.
The automobile engine takes the ATV to a new level of capabilities: long-term movement in difficult conditions and with a large load becomes possible.
This, as well as the features of the Oka’s front-wheel drive transmission, made it possible to make the ATV all-wheel drive. The automobile power unit was placed along the frame, respectively, each wheel drive of the car on the “quad” became a transmission shaft (cardan), transmitting torque to the front and rear axles. The drive axles are made on the basis of the Zhiguli axles, but each axle shaft was replaced with a drive shaft from Lada Samara.
Transmission diagram of a 4x4 ATV: 1 — Oka engine 0.75 l; 2 – clutch; 3 – manual gearbox with a “lowered” main gear; 4 – transmission shaft (CV joints VAZ-2108) to the front axle; 5 – gearboxes of driving axles (VAZ-2101); 6 – transmission shaft. 7 – wheels.
It's a little strange that none of the three differentials have locking. But to increase the torque in the Oki manual transmission, the gears of the main pair were replaced with a chain drive with a higher value. It is interesting that, according to the author himself, work on the project took 11 months; the amateur designer spent several hours every day in the garage - after the main work.
Step by step assembly
First of all, you should prepare and/or purchase all the necessary parts in accordance with the diagram of the desired device . Then they cook it from scratch or remake the frame. Suspensions, brakes and chassis are installed at the same time. Only after this the power plant and gearbox are installed. Next comes the time:
prime, paint and (optional) decorate this body,
test the vehicle with a gradual increase in the complexity of the trips.
If you choose a different design, you can use bicycle shock absorbers. The wheels are taken from a garden wheelbarrow.
Next they make the frame and suspension . They install the motor from the brush cutter, and then the gearbox removed from the chainsaw. D-6 becomes the donor of the “asterisk”.
A considerable number of offers on the ATV market for young drivers today allows you to choose a modification with different characteristics and for any wallet. If you are not ready to spend a significant amount on purchasing an ATV, you have a creative streak, minimal technical knowledge and some special skills, you can make an ATV for your child with your own hands. Of course, you will also need some tools.
You can find many interesting ideas for an ATV on the Internet, perhaps you have your own ideas. Implementing them will certainly bring you great creative joy and will allow you to get an original ATV at minimal financial cost.
Children's quad
Moderator: User buggy
Children's quad
Post by Shurick » Thu Mar 18, 2010 5:07 pm
Good day to all! So I was thinking about building a gasoline quad for my son...
Maybe someone has already tried to implement it?
Which engine is better to use?
Maybe someone has at least some drawings.
Thank you all very much in advance.
Re: Children's quad
Post by Shurick » Fri Mar 19, 2010 8:55 am
I would like to take this “unit” as the basis for the construction idea:
The question is of course trivial, but which engine is better to use?
Now I’m looking at the idea with: 1. D-6 engine from the “Gazulka”
2.Chinese engine from a 50cc chainsaw….
Maybe something else is better?
Re: Children's quad
Post by rbt06 » Fri Mar 19, 2010 9:28 am
Re: Children's quad
Post by tmrus » Fri Mar 19, 2010 9:31 am
The Chinese are now very inexpensive. From an economic point of view, there is no point in building it yourself.
Re: Children's quad
Post by Shurick » Fri Mar 19, 2010 10:21 am
To calculate the costs of building your “quad”, you want to select the nodes so that you know how much it will all cost...
There is an opportunity to buy Chinese engines from a chainsaw with a capacity of 50 cc for 4,500 rubles...
Re: Children's quad
Post by Shurick » Fri Mar 19, 2010 12:14 pm
Here is also an excellent miniquad:
simple and tasteful
Re: Children's quad
Post by InoxRage » Sun Mar 21, 2010 1:41 am
Re: Children's quad
Post by Shurick » Tue Mar 23, 2010 5:24 pm
I think I found the scooter.
