Homemade bicycle python. Bicycle frame: manufacturing and dimensions. Step #10: Finishing the Project

How to make a bike?

Creating a bicycle exclusively with your own hands is a difficult task, but doable and extremely interesting. Of course it will be required a large number of tools, certain knowledge that will have to be acquired during the assembly process, but all this is quite within the power of an enthusiastic person. So, let's try to figure out how to make a bike with your own hands.

In the course of work, we will need the following tools:

welding machine;
Bulgarian;
drill;
vise;
a set of clamps;
screwdriver;
pliers;
wrench;
a set of open-end wrenches;
a set of hexagons;
a set of files.

Building a bike

Determine the type of bike

The first thing to start with the manufacture of a bicycle is to decide how it should be, what should be the rider's landing and, accordingly, the frame geometry. It is worth clarifying that in this article we will talk about creating a city bike, “cruiser” or “city bike”. It is these models of two-wheeled vehicles that will make it possible to fully realize all creative ideas. At the same time, they are not so demanding on the material, from
which the bicycle frame will be made. In the case with sports equipment, it would be better to either purchase a ready-made one, or assemble your sports bike from ready-made components.

But, at the same time, in a home workshop it is quite possible to create a stylish city bike of your own, unique model.

Depending on the type of bike chosen, we also determine the rider's landing. She happens

high;
low.

Low landing is typical for sports bikes. A high, relaxed fit is just what is characteristic of "city" bikes, the so-called "cruisers". This type of bicycle is insanely popular in the west, primarily because of its appearance. It is this geometry that is typical for chopper motorcycles, in particular for the most famous such brand: Harley-Davidson. Since we chose a city bike, the landing in our case will be high.

We develop the frame geometry

We find out what the full geometry of the frame should be, that is, the exact location of the main components of the future bicycle. There are only 4 of them:

steering column;
saddle;
pedals;
wheels.

Create a sketch of a bicycle

In order to properly arrange the frame, you need to draw a sketch of the future bike. Take this one as an example.

The next step is to build a 3D scale model of the bike. For
This requires skills in working with special engineering programs, for example, with AutoCad.

It should be noted that it is possible to assemble the frame exclusively according to the sketch, but this will greatly complicate the workflow.

Choosing frame material

Now choose the material for the frame. At present, the industry uses different kinds materials, from iron ( worst case) to Carboniferous. But in the case of self-assembly of the frame, the best option would be steel, more precisely, steel pipes.

Almost any shape can be given to such material and the frame can be welded with high quality. Industrial steel frames Usually supplied with a "lifetime" warranty, they are durable and reliable.

Assembling the bike frame

Create a template

The best choice would be to print a model created on a computer in a scale of 1: 1. If the work is planned to be carried out exclusively according to sketches, the template will have to be drawn manually, but strictly observing all dimensions.

Frame assembly

When the template is ready, we bend steel pipes along it, cut and fit them to size.

Manufacturing of structural parts of the frame

There are three main details:

glass for the steering column;
glass for pedals;
dropouts (rear wheel mounts).

Final frame assembly

After all parts of the frame are ready, they should be installed on the slipway. IN this case, this is a special table on which all the frame components can be rigidly fixed in compliance with the geometry.

In the slipway, the bicycle frame is welded.

Frame cleaning and painting

After welding, it is necessary to clean the welding seams with the help of a "grinder" and a special nozzle. You should also clean the entire frame.

For painting bicycle frame use automotive enamels. You can paint the frame yourself, using a spray can, or in the workshop. The second option is more durable.

In principle, this is the most difficult part of the work of creating a bicycle with your own hands.

Final bike assembly

Now we need to hang the remaining components and parts of the bicycle on the frame made. Since we initially considered the creation of a "citybike", all further advice refers specifically to this type of bicycle.

After the frame is completely ready and assembled, let's start assembling the bike with our own hands:

When starting to create bicycles with their own hands, craftsmen should evaluate how often and for what purposes they plan to use homemade bikes. A self-made two-wheeled structure, rather, an experiment, an opportunity to prove to myself: I can do more than others, because I collect vehicle from scratch is hard work. Many parts cannot be made on their own, so you have to run around special stores for such components.

Another important point- to understand very clearly why each bike node is needed, which components cannot be abandoned, otherwise it will suffer or it will not travel more than 2 m.

Components of a homemade bicycle

Frame

If there is a frame left from an old, leaky bicycle, it’s great, the main thing is that it be in good condition and not have rust. If there is no frame, it does not matter either, purchase steel, aluminum or titanium narrow pipes.

The basis is a drawing, which displays all the components of the bike. It is better if the sketch is made in 3D mode on a computer, you can immediately assess the actual dimensions of the necessary parts and get an impression of the proportionality of each. Welding remains the preferred method of connecting functional components, if it is additionally planned to fix the trunk to the frame or, provide recesses for the bolts. Holes are also left for bolts for attachments.

front fork

It's hard to imagine homemade functioning bikes without a front fork. If you plan to ride a bike, sliding down the mountain and climbing up, it is better to build in a soft shock absorber. IN mountain models do not mount BMX plugs - they are too heavy. When making a plug with your own hands, calculate the following parameters:

fork travel;
method of fixing the brakes;
preferred wheel diameter.

Transmission and brake

Transmission nodes are selected based on the amount allocated for this part of the bike. Experts do not advise assembling the chain with your own hands or creating a speed switch, just waste your time, good quality you still won't get it. Arriving at the store, choose a classic transmission, the placental format has a number of significant drawbacks.

They are divided into rim and disc. If cycling is done in dry weather, rim brake pads are suitable, they are inexpensive and greatly facilitate the design. Extreme travel rim brakes will not stand up - equip disc brakes. With the latest, riding safety and comfort for the cyclist are ensured.

The wheels, of course, should be bought ready-made, however, as well as the saddle. If you prefer a sporty style of riding - pay attention to rigid and elastic saddles that take into account the anatomical features of the cyclist.

It would seem that it is easier to choose pedals. Beginners in cycling believe that, apart from the classics, the designers have not come up with anything else, but they are mistaken. Upgraded fittings keep your feet firmly in place so your feet don't slip off so you don't have to make unplanned stops. This also increases the risk of injury on the road.

How to make a bike with a comfortable steering wheel, experts suggest. It must meet the basic requirements:

ergonomics;
reliability;
strength.

The steering wheel is bent according to a pre-made sketch, while do not forget that it has important control components that control the activation of the brakes, knobs that switch speeds, a horn, a headlight. In modern bikes, you can equip an on-board computer.

The steering wheel is fixed to the stem, preferably the last component is adjustable. To assemble the steering wheel, use durable materials that will not let you down: steel, titanium or carbon.

Step-by-step instructions for making a bicycle yourself

Frame creation

How to make a bicycle with your own hands, starting from the frame, craftsmen tell. It is unlikely that you can do the work yourself, so enlist the help of a friend. For the frame, prepare 7 pipes, 2 of them should be short, 4 medium - they are placed for the rear feathers, the long ones remain for the seat component.

Follow this frame assembly sequence:

Attach the lower main pipe to the bottom bracket using a welding machine.
It should be fixed to the lower edge of the steering tube located in front of the bike. The position of the helmsman is relative to the perpendicular of the bottom bracket shell.
Following the parallel of the head tube to the glass, weld the seat tube to the down tube, taking into account the desired angle of inclination.
Then weld the seat tube and front tube to the main top tube. The front frame is complete.
Proceed to welding the lower stays to the glass of the carriage. The angle to the seat profile must match the angle of the main bottom.
Join the top end of the seatpost to the edge of the chainstay to form the chainstay.

Pressing the fork and making dropouts

The fork is pressed in in a horizontal position. How to make a bicycle yourself with your own hands at the stage of pressing the fork, step by step instructions masters provide:

Mount bearings.
Attach the cones to the balls
Put the washer on the shock absorber rod.
Tighten the locknuts firmly, but do not over-tighten so as not to break the connection.

Take a metal plate and cut out some pieces.
Armed with a jigsaw, make recesses in the details, the size of which should fit the diameter of the wheel axle and fixing nuts.
The part is welded to the frame, applying the side devoid of holes.

Landing recesses are placed at the same level, otherwise the wheel will not sit on the dropouts. The step between the mounting holes is equal to the tightening of the nuts to the maximum.

Mounting the remaining components

A fully functioning great bike requires the installation of working units on the skeleton. The most difficult thing is to install on your bottom bracket and debug the cranks and pedals. And again, you can’t do without a guide on how to make a bike with your own hands:

Secure the steering wheel mounted in the shock absorber housing with a bolt. The plug must be well lubricated before starting work.
Insert the seatpost vertically into the tube and secure it with a metal clamp with a nut.
Install the carriage into the glass using a squeeze.
After installing the chain, install the wheels.

Conclusion

Now you have the knowledge of how to make a bicycle with your own hands almost from scratch. The work begins with the creation of a drawing, and after that the idea of the master is gradually being realized. Some components you can make yourself, others are better to buy, so be prepared for expenses. The made bike will become a real attraction of the area, for sure everyone will want to ride on such a device.

Each cyclist should be able to independently troubleshoot various problems, as well as maintain their bike. If you don’t have the right tool from the standard set at hand, simple home-made devices that are easy to make with your own hands at home will help.

Homemade key for bicycle spokes

If the geometry of rotation of the wheels of the bicycle is violated (the “eights” appeared), it is better to solve the problem here and now, without postponing until better times. To eliminate the beating of the wheels, you just need to tighten (or, conversely, slightly loosen) the spokes. And this is easy to do with a special key. If the factory one is lost, we make a homemade one.

We take a compression nut, which is used for the installation of water pipes, and with the help of a grinder we make cuts of the required width (the dimensions must first be removed with a caliper). We remove burrs on sandpaper. Works literally for 2-3 minutes.

"Cover" to protect the pen frame

When driving fast off-road or riding on bumpy roads, which in Russia are “at least a dime a dozen”, the chain hits hard on the chainstay of the bike - the part of the frame under the chain. In addition to the fact that an unpleasant loud clang of metal is heard during movement, the paint also peels off because of this, scratches appear, and there it is not far from corrosion.

To protect your bike chainstay from contact with the chain, you can make a simple fabric case with Velcro for a quick and secure fit. Alternatively, you can simply wind a thick rope around the frame.

Bike chain cleaning tool

Modifying a bike can become a real hobby. To this day, despite the ever-increasing availability of various devices, homemade bicycles remain relevant. If there are no devices on sale that meet your requests for functionality or appearance- you can try to make them yourself. After all, it only takes a little enthusiasm to get started.

What are homemade products and why are they needed

The most common accessories are from parts of old bikes, which literally gives new life to old mechanisms. One of the simplest conversions can be turning a bike into an exercise bike. You can often find such a device from bicycles as a three-, four- (or more) wheeled vehicle. From time to time you can meet just unusual tales, transformed according to the idea of the craftsman. These are all kinds of recumbent models with comfortable and spacious seats, models with a manual or other modified drive, bikes with an unusual frame shape, and so on. You can list various homemade products from bicycles ad infinitum. The dimensions, shape and purpose of a homemade bike depend only on the imagination and perseverance of the master.

Along with the manufacture of homemade products from a bicycle, homemade products for a bike remain relevant. Self-manufacturing different bike accessories can be interesting for several reasons at once. This is a banal saving of money, and the creation of a unique style of your bike, and the desire to increase its functionality. If you wish, you can make most of the necessary bicycle accessories with your own hands.

These include, for example, the manufacture of an anti-theft lock, fasteners for water bottles, glove compartments, and so on. There are bicycle carts and strollers. To create a trolley with your own hands, an old children's bike, or rather its wheels, is well suited. A homemade trolley or a bicycle stroller can be useful for transporting goods, it will be very useful for summer residents.

Various trunks and backpacks, which can also be made with your own hands, can be useful in transporting numerous luggage. Materials can be anything from hard fabric to wood and even metal.

Bicycle tuning

Recently, such a type of “tuning” as an unusual illumination of the wheel rim or a luminous wheel cap is gaining popularity. All this can also be done independently, without resorting to expensive materials or ready-made solutions. You will need LEDs, wire, a battery, a soldering iron and a little ingenuity.

Of course, to work with your own hands, and even more so the manufacture of any mechanisms, you will have to master the appropriate tools. The skills to work with a soldering iron, a file, an airbrush and, possibly, even with a welding machine will be useful. You can upgrade your bike indefinitely, supplementing it with various accessories and devices that expand its functionality. The same applies to making crafts from old bikes. After all, a thing created with my own hands, and even benefiting its creator, will please much more than purchased in a store.

Wooden "Japanese" from Oshima

Once upon a time, absolutely all bicycles were made of wood. Then this expensive and rather heavy material was replaced by light aluminum and plastic. But one day the Japanese designer Yojiro Oshima came up with the idea of a well-forgotten old, often giving a new life. And so his amazing bike was born, completely made of wood.

Of course, this visionary from the Land of the Rising Sun was not the only one who dared to create unusual bicycles from wood. And besides his world-famous bike, there are many others.

Scooter Pibal

Tastes, as they say, do not argue. Some people love bicycles, while others prefer to ride a scooter. Well, what about those who are crazy about both? It's simple - Philippe Starck, the French developer who gave the world a scooter bike, took care of them. You can move this vehicle from one position to another with a slight movement of your foot.

The new transport was appreciated not only by lovers of everything unusual, but also by athletes. Doctors are in solidarity with them - after all, such unusual bicycles-scooters allow you to use a wide variety of muscle groups while riding, evenly distributing the load and providing the opportunity to relax. The option of adjusting the saddle in height allows both men, women and teenagers to ride this transport.

Homemade bike Sawyer

Designer Juergen Kuipers gave cyclists an amazing opportunity to create unusual bicycles with their own hands. His invention won the hearts of not only athletes, but also members of the prestigious international competition in Taipei, for which Kuypers got the honorable first place.

Unusual bikes from Jurgen go on sale in boxes and are supplied with detailed instructions by assembly. By the way, some of their details are also made of wood.

Folding bike Mobiky

Do not think that this one is great - just a frivolous toy. It weighs no more than a baby stroller (12 kg), but it can safely roll a passenger weighing a whole centner! And its small wheels allow you to travel the same distance per revolution of the pedal as full-size ones. These are such unusual bikes, these Mobiky...

But their main miracle, of course, is the ability to assemble. A folded bike can be thrown over your shoulder, jump into the train with it and roll off towards adventure. After all, not everyone has the opportunity to go around all the interesting places, pedaling endlessly? Some people are running out of time, and some just don't have the patience to cover the entire journey on their own. For such, Mobiky was developed.

Electric Worthersee

Audi knows how to make reliable cars, in which everything is thought out to the smallest detail for the comfort of the driver and passengers. It seems that this habit developed over the years formed the basis for the development of the bike. Why else would AUDI Worthersee deprive the pilot of the need to pedal? Yes, and accelerate at the same time to a speed of 80 km / h, without straining at all!

These unusual bikes, which look more like scenes from futuristic motorcycle movies, are equipped with five riding modes and nine speed modes.

Lamborghini

When it comes to the best transport in the world, how can you do without a Lamborghini? Of course, this legendary manufacturer did not leave the bicycles without attention, releasing a limited series in honor of his anniversary.

What can you say about these bikes? Genuine leather, high-quality branded paint, a unique system of reliable brakes, the best tires, the highest quality materials - Lamborghini does not change itself in anything.

Anti-theft bike from Kevin Scott

Tired of lugging around with locks and chains, but don't want to leave your pet in the parking lot unattended? Don't worry, Kevin Scott has already figured it out!

We take a bicycle, bend it in half, wrapping the frame around the post. Close the latch and voila! A two-wheeled friend is securely chained to a pole and will certainly wait for you safe and sound. Disassembling it, by the way, is just as easy. Of course, unusual bikes from Kevin Scott can not only park great, but also ride. Powerful tread, reliable brake system, ergonomic steering wheel and comfortable sports seat - what more can you ask for?

Solar ELE Solar

The most unusual bikes on the planet in the vast majority are environmentally friendly and do not harm the environment. The uniqueness of ELE Solar lies in the fact that, while having this advantage, it still uses energy. True, it is sunny, thanks to which its environmental friendliness and safety for others do not suffer at all. To generate energy, rays of sunlight are used, which are accumulated using plates built into the wheels. Depending on the position of the celestial body, the plane of the plates can be changed at your discretion by turning their surfaces in the direction of the source of light and heat.

In addition, he has an absolutely incredible appearance. Yes, you can't take your eyes off him!

Taga Bike - transport for sports moms

And for dads, of course, these unusual bikes are also suitable. And for other relatives who are in love with cycling.

This amazing transport is equipped not only with a driver's saddle, wheels and pedals, but also with a comfortable and safe child seat or even two! Now babies who have reached the age of six months can safely go on a trip with their parents.

Italtrike for little pilots

And what will those who are accustomed from infancy to sports and wind ride? Perhaps they will like the Italian beauties Italtrike Evolution or Oko - bright three-wheeled bikes, equipped with comfortable seats with tilt adjustment, reliable frames, sun hoods, possible wheels and parental handles.

These unusual children's bikes are available in different colors, have excellent handling and weigh very little.

Cykno Electric for retro style lovers

This extraordinary bike is equipped with a battery that can help you cover a distance of 60 km. Its design is based on innovative carbon fiber. This is where you should not believe in appearance - in appearance, he is a real old man.

Not only the shape helps to shade the retro style, but also the use of high-quality genuine leather. Complementing the image and wheels, so similar to spoked ones.