Home Transmission How to make a car box with your own hands. How to make Cobobs to the roof of the car do it yourself? All on the shoulder. Additional devices for expedition trunk

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How to make a car box with your own hands. How to make Cobobs to the roof of the car do it yourself? All on the shoulder. Additional devices for expedition trunk

Often, prices for corporate boxes on the roof are so shocked by the car owners that some are solved on the grand experiments and try to make it easily. Most. affordable materialMore or less suitable for creating a hard luggage boxing is plywood. The fact that homemade boxing is nothing more than imitation proves any crash test. Dough video clearly shows that the boxing on the roof does not pass standard tests. The homemade plywood box on the roof is divided literally to smire in those emergencies, where the factory has all the chances to remain whole.

Cons build homemade boxing of plywood on the roof

In addition to the very time-consuming process of manufacturing from creating a drawing to the assembly of elements homemade boxes on the roof of the car there are also the problem of calculating the final weight . To collect such "Lego Boxing" will have to put quite a lot of fasteners on the connections. A set of hardware itself can weigh up to 3 kg. This is an additional car load that is absent in the polymer factory boxes.

Weight of painted plywood, ribs of stiffness, adhesive compositions and fasteners on the stitching of the elements of the box of boxing created by their own hands, levels any hints of aerodynamics . Even attempts to copy the form and proportions of the original boxing will not help reduce and evenly distribute the weight of the self-made. As a result, the aerodynamic car box on the roof with your own hands is so unreal as it is racing car in the garage.

Plywood, to put it mildly, does not have the properties of ABS plastic even after processing prints, automotive paints, yacht, lamination and other attempts to protect the boxed boxed on the roof from external influences.

In addition to the difficulties of protection against moisture to home-grown masters, I want to make boxing on the roof with your own hands at least a little similar to factory samples. In the overwhelming majority, this task is beyond the face of reality and hoodar boxing trunk does not get similar to elegant boxes , over the development of which professional engineers work.

Boxing opening system on the roof will have to make an independent . At this point, the creative ideas of "Kulibins" reach the use of furniture accessories, removal of mechanisms from household appliances and other exotic techniques for equipping boxes. Of course, it is impossible to count on the trouble-free operation of the mechanisms, which in principle are not designed for boxes.

A short review of the main problems of plywood boxing clearly proves that it is unprofitable to engage in diverse works. However, there is an alternative to expensive boxes. Avetochta has developed its own luggage box model in full compliance with progressive technologies. You can buy high-quality boxing at a price that is almost equal to the costs for homemade, only without the risk to lose in the comfort and safety of the operation of the car with a luggage box.

For people who prefer to travel with family on own carAnd you forced to take a lot of things with you, the rooftop trunk is necessary accessory. You can easily place on it oversized cargothat does not fit in the rear compartment of the machine, and transport sports equipment, such as skiing, snowboards or bicycles. Typically, the trunk is not included in the car's package, but it can be purchased or done with your own hands.

Finished box

There are four main types of car trunk:

Classic. Otherwise they are called universal or basic. They are a design of metal crossbars and crossbar fixed on the roof of the car. Their main advantage is the simplicity of fasteners and the ability to modify the design for the carriage of sports equipment or installation of automotive boxing.
Expeditionary. This species is designed for fans of outdoor activities in nature, tourists, as well as hunters and fishermen. Such a cargo compartment is more like a basket. In addition to the foundation, it has onboard, to which you can attach lighting devices, bumps and spare parts.
Cycling. The design is a fasteners system that fix sports equipment.
Autobssee. They are tough and soft. Hardware on the roof is made of shockproof plastic, and soft fiberglass and look like large road bags. Autobobs from fiberglass - optimal option For the experienced traveler, because things transported in such a trunk are reliably protected from dirt, wind and precipitation. In addition, the design has a good aerodynamic form and does not significantly increase the fuel consumption at full load.

Making trunk on the roof in the form of boxes is a new, but very promising direction. Cheapest models russian production Stand from 20 000 rubles, but you can make the Autobobs on the roof of the car with your own hands.

Trunk on the roof of the car do it yourself

To make the trunk on the roof of the car with your own hands, certain skills and equipment are needed. Work takes place in several stages:

Preparation: Determination of the construction of the trunk on the roof of cars, measurements and drawing up the drawing of the future product, purchase of materials.
Production: Production of parts and fastening elements, assembly.
Fixation: Fastening of longitudinal and transverse planks, installation of a finished trunk or auscase.

The main factor when choosing a trunk design is its purpose. If there is a need to transport non-heavy, but large loads, then a universal or expedition appearance is suitable. For those who want to free the place in the car from the most frequently used, but the necessary things, the perfect solution will be the Autobs.

Attention! However, it is not so easy to make a roof on the roof of the car's roof, therefore, classic or expedition trunks are more popular with Handmade lovers.

Selection of material and tools

In the manufacture of the trunk, it is necessary to take into account the fact that maximum load It should not exceed 70 kg to the roof. The design will be much easier if you use aluminum profiles for its production. They feature ease, flexibility and durability, which in aggregate with a slight weight makes this material ideal to achieve the goal. Alternative solution may be thin-walled profile pipes. They are also durable and resistant to corrosion, but their cost is almost 2 times lower than that of aluminum.

If still a desire to make the Autobobs, it is better to stop on a soft design, because the manufacture of fiberglass brand is technologically difficult and expensive. A tarp or banner tissue is used as a material for soft boxing, or fiberglass with a density of at least 300 g / m2.

In addition, the following will be needed. consumables and tools:

bolts and clamps;
mounting foam;
bulgarian for metal;
welding machine;
sander;
primer and car paint.

Separate paint in the color of the car is not necessarily, especially. The design may look aesthetic and without painting.

crossing

Design measurements and drawing up

If the design of the machine is covered by railings, then it is enough to measure the distance between them. In case of their absence, you will have to make accurate measurements of the length and width of the roof, on the basis of which the drawing of the future design is compiled. When drawing a 3D model, it is not enough to take into account only the dimensions of the frequency compartment perimeter. The following additional parameters will be needed:

height of side or boxing;
place for fastening the transverse jumpers and the distance between them;
the number of fasteners: if the roof length is more than 2.5 m, the design should have 6 supports. With smaller dimensions of enough enough.

As a basis of patterns for soft boxing, you can take drawings that are in general internet access, and adapt them to the desired size. The schemes of forwarding trunk for the roofs are quite simple, and they can be made independently, but it is easier to repel from the finished solutions.

Welding work

The manufacture of an expedition trunk on the roof is impossible without welding work. They are held in the following order:

welding perimeter design (bottom and side);
wire of transverse jumpers, reinforcing the strength of the bottom of the structure. If necessary, the grille is made from profiles.
fixation of vertical racks of sides. They are welded to the bottom and top of the trunk frame, combining them into the similarity of the basket;
removal of the surfacing of metal, resulting from welding, grinding the places of the components of the structural elements with the subsequent primer.

Important! In the presence of rails, the finished design is fixed on them with fasteners. If the rails are not provided, special brackets are installed on the roof of the car.

Making fasteners

Make fasteners with your own hands in two ways:

From the clamp for fastening the muffler of any car. To obtain required result It is enough to cut off from a flat bar of the middle and get a universal fastener, which will fit tightly to crossbar and trunk arcs.
Use P-shaped threaded bolts. Nuts to replace on the "bars" so that it is easier to unscrew and fasten fasteners.

To fasten the tightness tightly to the arcs and crossing the design, it is recommended to use rubber seals.

Fastening cross

Fastening is a very important point. To properly install the Autobobs on the roof of the car, you need to observe the distance between them no more than 50 cm. If the car construction is provided for the presence of rails, then the crossings are fixed on the bolts.

If there are no rails, there are 3 mount options:

in regular jacks for installing the trunk. Racks are fixed on bolts that are included in the set of mounting node;
on the drains with the help of special locks;
on a smooth roof. The stops are fixed with the help of a specially designed fastener under the doorway.

When attaching the Autobobs to the roof, you need to pay special attention to its position. It should not be put forward, or frighten back. It is fixed with the help of fastening brackets, which are wrapped in front of the bottom and insert into special holes in the bottom of the coffer.

Ensuring aerodynamics and fixation of sides

Installation on the roof of the self-made trunk can deteriorate the aerodynamic profile of the car, which reduces the stability of the machine on turns and increases gasoline consumption on open tracks. To avoid this, it is necessary to fix the front and rear racks Designs under an acute angle to the roof surface. This is achieved due to the difference in the length of the top frame of the trunk and its foundation. The exact dimensions and angle of inclination are calculated in the design process.

Aesthetic strokes

So that the homemade trunk becomes a harmonious supplement of the car, and not an incomprehensible design on the roof, after welding, it must be seated, primed and paint. Hide the fastening bolts using decorative nuts.

Soft box can be made original, if you print some unusual drawing on the fabric. Such work can be ordered in advertising agencies specializing in advertising on automotive awning.

Additional devices and appliances

The forwarding trunk has durable sideboards to which additional equipment can be attached, for example: fog lights, Weathered, or an additional antenna.

I want to do something like that. The corresponding part will be made of aluminum composite panel with longitudinal amplifiers made of aluminum profile pipe, the upper part of the banner fabric with full-color printing, so painted the drawing.
Here is the bottom of the bottom. Here are amplifiers
Banner gave to print - layout here))))
We are waiting for the banner, and that's how lightning will be sewn with the valve. Today they made a lower side with holes under the clutch. On the front of the edges decided to put two super bright LEDs. This advised me one trucker. I asked him why? Answer: Tipo with this boxing 80% will be rolling not in the city and beyond. The truckers on the roof also have lamps or diodes. This is in order to come at night and when, because of the Bug, there are light bulbs, then people automatically include the Middle Light (most people) and when they are not shifted only after the headlights appear. But while the headlights appear on the balls dubbing a distance.
That's banner Cut out We flash on the sewing machine around the perimeter. In the usual thread took the fishing labnce (Power Pro woven cords are made in the USA from 100% microfiber Spectra Fiber) We sew the castle. I sewed him from the side of the road, in order not to hang around on the road during the parking lot and search for things. Now Banner Breppy to the base with the help of glue (Cosmofen CA 12) and additionally scream the perimeter. Well, the stage of fastening the boxing to the roof came. My basic requirements for fastening, this is a detention - simplicity of installation - the cost is an aesthetic appearance. The first thoughts were - secure with a bracket with 2 nuts, bolt through the trunk and ... every nonsense . With the help of a grinder, cut off too much and voila. Document locknuts and bolts for a long 80mm.
We try on the spot! And here they ++ aesthetic type + reliability + installation 3 minutes + cost + not rust!
Now I decided to bring to mind appearance. From the balloon stained the lower amplifiers in black
Boxing is ready!

www.drive2.ru.

How to make a trunk on the roof of the car do it yourself + photos and drawings

Each car owner once becomes too closely in the car - for example, when it starts repairs and carries a tile and plaster in the car or in a hurry in spring with seedlings to the cottage. Especially in this situation, place the luggage on the roof of the car using a special device. However, prices for quality trunk fluctuate from several thousand to two - three tens of thousand rubles. A simple and practical solution is to make the trunk with your own hands.

Why do you need a trunk on the roof of the car

The roof trunk is necessarily useful if you:

we started repairs and independently transport construction Materials;
move, transport a large number of things;
fond of active recreation, be it cycling, snowboard, skiing, fishing, hunting, tourism, etc.

Trunk Ringing - Minimalistic solution for avid travelers

Types and photos of the most common structures

To begin with, it is necessary to decide on the view of the trunk on the roof of the car, which you need. Distinguish several types of designs:

In the presence of the necessary skill, patience, time and desire, you can make the trunk of any type with your own hands. Universal and cost-effective triggers are considered the most popular and cost-effective. It is them that most often choose car owners.

Before proceeding directly to the process, it should be noted that for the manufacture of the trunk, the owner of the car is taken at his own fear and risk and possible consequences He is responsible for himself.

And it is also worth paying attention to the fact that the trunk will hardly need you constantly, so it is worth thinking about making it removable, and use it as needed.

Universal trunk for the car

The inexperienced master is better to start with the manufacture of the simplest type of trunk. In fact, there are two crossings. To do this, you will need:

metal profile, for example, with dimensions of 20x30 mm and the wall thickness of 1.5-2.0 mm (ideally aluminum, since it is easier);
clamps for the muffler - 4 pieces. With their help, the trunk will be attached to the roof (in case there are rails);
mounting foam;
grinding machine;
fiberglass density of 300 g / sq. m.;
paint.

Step-by-step manufacture

To make the trunk in accordance with the auto parameters and secure it on the roof, follow the algorithm below:

To begin with, we saw the crossbar. The length of the crossbar must match the width of the car body.
Coasts cover foam both from the inside and outside. The layer must be quite dense: this will allow in the next step to give the necessary shape to the cross.
After drying, the foam is stepping it with a grinding machine. At the first stage, we attach the form of the right parallelepiped, and then we introduce constructive changes in order to improve aerodynamics, in particular, stepping the corners.
Since the foam has a loose structure, it is possible to additionally shut apart for the car - so their surface will become even.
Watch the crossbar in three layers.
Mobile crossing and waiting for drying.
At this time, we will make the manufacture of fasteners. In our case, we decided to go along the path of least resistance and take advantage of the chomuts for the muffler. They need to be prepared - to cut the lower part of the clamp so that it turns out a smooth record for a more dense fit.
Drill in cross holes. On each side should turn out two symmetrically located holes. The distance between them should coincide with the "ears" of the clamp.
Fix the crossbars on the rails. In order not to damage the clamps, in places of their contact, we can put rubber gaskets.

Video: Features of the construction of the construction on the car "Oka"

Expedition trunk type "Basket"

The technology of manufacturing an expedition trunk will be an order of magnitude harder. In this case, it will be necessary to pre-draw a drawing. In addition, do not do without a welding machine and the ability to handle the metal.

Mesh base - a practical solution for an expedition trunk

Drawing design

Take for the sample homemade trunk for Chevrolet Niva.. The length of the trunk will be 163 cm, the width is 123 cm. For the manufacture of an expeditionary trunk, metal photographs will be required 15x15 (approx. 9 p. M.), 20x20 (approx. 7 p. M.), 25x25 (approx. 7 p. M.) And 30x20 (approx. 6 p. M.).

The expedition trunk on the Niva for this drawing can be made independently

Master's actions sequence:

We begin the manufacture of the trunk from the base: Cook the perimeter. Longitudinal guides - from the profile 30x20, transverse jumpers - from the profile 20x20.
We screw into the perimeter carrying jumpers from the profile 30x20. For them, the platform will be attached to the rails.
We reduce the distance between the carriers of jumpers, the order of the additional transverse from the profile 20x20.
We make an arc that will be located in front in order to improve aerodynamics: from the edge of the profile, measure 5 cm and cut the triangular sector, after which the profile is bent. We weld the arc from the outside of the perimeter.
To improve the strength of the design, we fasten the jumper between the profile sections of 15x15. If you want to jumper, non-carrot, can be replaced by a metal mesh or sheet stainless steel.
We make sides. Profile cut into pieces of 6-10 cm long and weld to the base. If you wish, they can be put on the thread - then the sides and the top of the trunk can be removed.
The cerebrals of the upper crossbar came. According to its size, it must repeat the lower, but the side crossbars must be slightly shorter, and the racks connecting them with the base are arranged at an angle to improve aerodynamics.
Fresh trunk in a way similar to the above described. Important moment: For a uniform weight distribution, the expedition trunk should be attached to six points.

If the car has no rails, you will have to make support yourself from a piece of sheet metal. You can put on the brackets, but for this you have to drill body.

The expedition trunk is highly high compared to the usual trunk functionality. For example, it is possible to attach fog lights to it - it is enough to prevent the headlight mounting bracket to the inclined connecting element in the front (see paragraph 7).

In addition, in the expedition trunk it is convenient to carry a shovel. It is possible to fix it using a conventional fastening for pipes.

Video: Fasteners Construction on SUV

Roof trunk: Pros and cons

On the advantages that are provided by the car owner on the roof, we have already started to speak above. Now we will analyze them in more detail.

The advantages of the trunk on the roof a lot:

the most obvious advantage is definitely an additional place for things. So, on the roof you can easily place three bikes or everything you need to relax on nature - a tent, an inflatable boat, fishing equipment, etc. And the container of apparent fairly compact boxes can be up to 300-800 liters;
there is an opportunity to carry non-standard, for example, very long loads (like stairs, boards, pipes, etc.);
due to the fact that part of the baggage moves to the roof, it becomes much freerior, more comfortable and safer in the cabin;
due to the roof trunk, a more uniform load distribution occurs. So, if the whole cargo is in the trunk, the machine "sends". Because of this, the ground clearance decreases and the risk of tipping.

Possible problems

Together with the obvious advantages, the rugs on the roof of the car have a number of flaws:

they, as a rule, negatively affect the aerodynamic properties of the car. The trunk of the wrong form will create additional resistance to air flows, which means that the car stability will also suffer. Because of this, it can also occur additional noise.
the car with the trunk on the roof significantly adds in height, which means that it will not be able to pass along the areas of the road on which the corresponding restrictions are installed.
the trunk itself, even empty, weighs from 1.5 to 15 kg and more, which increases the total weight of the machine, and therefore, fuel consumption. According to some estimates, an unloaded trunk increases gasoline consumption by 0.2 liters per 100 km in urban conditions.

So, you learned what the trunks on the roof of the car, met their advantages and disadvantages, found out how to make some of them. Now you do not have to break your head over how to place in the car all the tents, spinning, backpacks and other equipment - everything is a place on the roof of the car. You can also relax and enjoy the rest. Good luck on the roads!

carnovato.ru.

Trunk on the roof of the car with your own hands: Tell how to do

It is a pity that when buying a car, a roof trunk is not provided. This is a very convenient design for the transport of all sorts of things: from small and lungs, to heavy and overall, as well as strongly smelling. And it is not always possible to buy a ready-made homemade or factory trunk.

Trunk on the roof of the car do it yourself

From this situation there is a good way out. Namely, create a trunk on the roof with your own hands. This version implies savings in the family budget. Another name of the homemade trunk is an expeditionary. It cannot be transported heavy and large cargo. It is intended for personal belongings, tents, bicycles, skis and snowboards, mattresses and large umbrellas, as well as small furniture. Also, you can make the most popular Autobobs. It is convenient because he is protected from the environment even in bad weather and from theft. And if you make it a streamlined form, then there will be no surplus of fuel.

How to make a trunk on the roof with your own hands

In general, triggers for roofs are divided into two types:

Advantages of expedition trunk:

If you make the most popular Autobobs, it will be convenient for protecting from rain in bad weather and from theft.

more functional;
accommodates many different things of any configuration;
accommodate large-sized objects;
protects the roof from damage from above;
does not overshadow the view of the autodist.

Disadvantages of the expedition trunk:

luggage weight limit;
fuel consumption increases;
difficulty in laying heavy loads;
with incorrect fixation, there is a fear of loss of part of the cargo;
reduced aerodynamics;
bad stability of the machine with lateral wind.

Transportation of bulky cargo

For luggage items, the shape of the basket with sideboards will fit. For the transport of long things - a flat open platform.

To make a homemade trunk on the roof of the car, it is necessary to carefully measure the linear dimensions of the roof. It is impossible for the trunk to go beyond the roof borders in the front glass area or creating an interference for doors. Ideally, it is better to follow the size of the factory trunk calculated for these models. Dimensions can be found on the sites of manufacturers, or on the roofs of cars of friends and friends. Next, it is necessary to determine the type of trunk. For luggage items, the shape of the basket with sideboards will fit. For the transport of long things - a flat open platform.

Determination of the number of fasteners for the trunk on the roof of the car do it yourself:

four points of the support are suitable for hatchbacks and sedans;
if the roof length is over 2.5 meters, it is better to make six fixtures.

Self-made trunk with side

Now it is necessary to make the drawings of the expedition trunk with the size of the sizes. You can also work on the sketch of the factory model. Of all the materials for the manufacture of luggage design, the profile of aluminum alloy is best. It is easily cut, bends, not being corrosion and has a small weight. The construction of steel will be hard that in turn will reduce the weight of the cargo transported. A framework of a profile pipe with a cross section of 20x30 mm and a thickness of the walls is 2 mm. It is not desirable to use round pipes, since during transportation the cargo is clenched with them.

You will also need tools and components:

Of all the materials for the manufacture of luggage design, the profile of aluminum alloy is best.

welding machine;
electrodes;
line;
roulette construction;
angular grinding machine;
metal discs;
drill;
drill;
nozzle for stripping welds;
set of mounting components;
clamps for fastening of silencers;
mounting foam;
metal paint (preferably under the color of the car).

Drawing of homemade trunk

After the drawing is ready, and tools and components are purchased in full, you can proceed to the manufacture of a roof trunk:

Determine the length is broken. They should be the same in size.
Cut a profiled pipe into several parts to obtain longitudinal and transverse guides.
Cook parts of the trunk, clean the welding seams.
Close up of them by mounting foam from the inside and outside. Usually enough one cylinder.
After complete drying and hardening of the foam, to become its grinding machine. Initially, it is necessary to make across the form of parallelepiped. Then, if desired, they can be given a rounded view. The main thing is that they look in relation to the car as "relatives".
Then, for strength, coat fiberglass fiberglass in 2-3 layers. It is desirable to take a tissue with a strength of at least 300 g / m2.
For attractiveness, smokers can be painted in any color (usually take black, or in the color of the car).

Making fasteners

In the manufacture of the trunk, you need to remember the safety technique - load the roof of the car over 70 kg.

The first way. Take the clamp for fastening the muffler from any car. This is a flat bracket on one side and an arc that goes down the pipe on the other side. From a flat plate sprinkle everything else. Now it will be tightly adjacent to crossings and leather trunk arcs. The second way. Use P-shaped threaded brackets. Instead of nuts - secure the lambs, with which it will be very easy to unscrew and twist.

Fastening cross

For attachment to the rails, they need holes in them. Measure them symmetrically on both sides, taking into account the holes in the mounting plates. Heart drill. Put the trunk tightly on the rails. If there is no dense fit somewhere, rubber gaskets can be used. Securely secure with bolts and nuts. It is also necessary to remember about the safety technique. To load the roof of the car over 70 kg is impossible.

Read on:

mYTOPGEAR.RU.

Making an expedition trunk with your own hands

Upper trunk - what is it? Functional element modern car Or an unnecessary detail, from which harm is more than good? You can argue about it infinitely, because the needs and methods of operation of the machine for each driver are yours. Someone uses the vehicle only to get in the morning to work, and in the evening to the house. And others do not think their lives without active sports: cycling racing, skiing and snowboarding. The last category of people, perhaps, most of all needs to install additional space for fixing large-sized items. By the way, the expedition trunk is quite possible to make in the garage with their own hands.

Not all modern cars have an additional expedition trunk, however, this is a very important and useful detail of the car. Usually, it is remembered when it is required to carry a large-sized object. Machine owners with a body type "coupe" or "sedan" will be forced to hire freight carriers, if you need to buy construction materials for the cottage or garage, because the boards and pipes simply do not fit into the trunk. Even the usual bike can be laid in a regular luggage compartment not every car. Someone may argue that there is a trailer for these purposes. But control is vehicle Requires certain driving skills, and the trailer is not available. Output from such situations will be the acquisition or independent manufacture Trunk on the roof of the car.

The forwarding trunk is installed on the roof of the car and is used for the carriage of large items.

Such trunk can be divided into two categories:

The first are more compact and have an attractive appearance. In addition, they protect your things from dust, rain, snow and even a bright sun. However, they are able to accommodate much less things than arcs, and it is practically impossible to make them independently.

Autobssee have a more aesthetic look and do not disturb the aerodynamics of the car, but it is impossible to make them with their own hands

But the second option is more functional, besides, it is easy to make it yourself.

Modern manufacturers are increasingly producing combined types of trunk. For example, in one design, you can combine boxing and a bike holder and other sports equipment. If you wish, you can purchase such devices in specialized stores, but their manufacturers are almost impossible to make them.

If you are still not sure if you need a trunk in a similar place, read the benefits and disadvantages of this detail. Positive sides The expedition trunk is quite obvious:

it allows you to transport more things;
protects the roof and its paintwork from external damage from above;
there is an opportunity to carry large-sized items;
with reliable fixation, the cargo does not fall;
transferred items do not block the driver's review;
the place is exempt in the car;
for some body structures, it is possible to increase the volume of the cabin due to the empty luggage compartment;
you can install gas-blade equipment in the freed standard trunk;
such item is easy to make it yourself

Unfortunately, there is such a trunk and negative qualities:

weight transported items are limited by car lifting capacity;
fuel consumption increases by 2 liters per thousand kilometers with a blank installed trunk;
there will have to apply certain physical efforts, raising the cargo to the height of the car;
with excessive filling of the trunk or bad fixation, part of the things can be lost;
incorrectly fixed structures thunder and interfere with the driver;
the aerodynamics of the car decreases, due to which the possibilities for acceleration and maneuvers are reduced;
the machine becomes less resistant to the side wind;
the height of the car increases, which means, should be more attentive when driving through the tunnels or under low arches.

The need to install an expedition trunk directly depends on the features of the operation of the car. If you are often traveling, love to ride with your family and friends on bicycles or engaged in summer work, then such an element of the car will be indispensable for you. In all other cases, there will be no such trunk either, besides, it can always be dismantled and left in the garage, and if necessary, set back.

The expedition trunk can be made by two methods:

weld metal design with sides and bottom;
make crossings for rails.

Railings are peculiar railings installed on the roof of the car. Loads of simple form can be tied directly to them, but it can damage the paintwork. Unfortunately, the rails are absent on some models of cars, so sometimes it may be necessary to make a complete design.

Realies are very convenient for fastening the cross, but they are not equipped with all cars

If you plan to stay on the method with the attachment to the rails, then the whole process can be divided into several stages:

selection and purchase of essential materials and tools;
measurement of the roof parameters of the car;
drawing up the drawing of the structure;
manufacture of cross;
manufacture of fasteners;
building assembly;
installing the trunk on your place.

In the event that the rails are not provided in the design of the car, you may need to weld the more complex shape of the trunk. However, with a responsible approach to the situation from the beginning of measurements before installing the finished design on the car, no more than one day can go.