It is not difficult to make a boomerang at home on your own. In this article we will tell you about the manufacture of several types of these flying objects.
Did you know that not all boomerangs return to their owner after being thrown? When hunting large animals such as kangaroos, the Australian Aborigines used non-returning boomerangs. They threw such a boomerang almost horizontally. And he himself was curved less than a modern counterpart and reached a length of up to 1 meter.
To date, the boomerang is not used for practical purposes. It is used to develop manual dexterity or just for fun. The device is generally not tricky. Great for learning the basics of aerodynamics.
Classic L-shaped boomerang
Material for production: thin plywood.
First, let's prepare a template. Take thick paper and mark it with a square grid in 50 mm increments. In the diagram, the convex side is facing the reader. Transfer the outlines of the boomerang from the diagram to the prepared sheet of paper and cut it out. To check the symmetry of the resulting template, bend it along the OA axis. Check that both sides of the boomerang match.
Now glue the template onto the plywood sheet. In this case, the outer layers of plywood must remain perpendicular to the OA axis. Cut the boomerang with a jigsaw along the contour. Please note that finishing must be done only from the side considered in the diagram. Leave a flat surface on the bottom. In order for the thickness of the boomerang to smoothly transition from the middle to the edge, use a flat file.
For each section considered in the figure, make a counter-template from tin or thin plywood. Next, with the same flat file (or semicircular), make a profiling and sand the surface. The edges must be carefully rounded. Do not forget to constantly compare the profiles of the boomerang sections with the translucent templates throughout the procedure.
It remains only to balance the boomerang. To do this, along the OA axis, you need to attach a thread to it and then hang the resulting structure. None of the "wings" of the boomerang should outweigh. If this situation still happened, correct the balance of the model by attaching a small lead rivet to the "wing" that is lighter.
All is ready. Now you can start decorating the boomerang with its further varnishing.
cruciform boomerang
Material for manufacturing: linden, oak, birch or other heavy wood.
Two-blade variant
According to the above diagram, make boomerang blades. Cut grooves in them. Then glue the "wings", or connect them with screws, making sure that the balance is observed.
Three-blade variant
The range and flight time of such a boomerang increase from 3 to 8 percent.
If you do not have experience with a boomerang, then it is desirable that the length of the blades in both versions of the scheme does not exceed 25-30 cm.
safe boomerang
Production material: paper.
This option is absolutely safe for others. Making a boomerang out of paper is extremely simple. As a result, you will get a boomerang that duplicates the principle of the wooden prototype. Following the diagram, cut out the blank from paper.
Bend the edges of the blades towards you. If you are left-handed, use the opposite direction of the fold.
Well, you have achieved the desired result, as you can see, making a boomerang at home turns out to be very simple, the main thing is to really want to.
Safety
Making a boomerang entails elementary safety rules for its use. It is recommended to use a boomerang in large open areas in calm weather. There should be no people nearby. If you notice someone, you need to warn him about your actions.
Attention! Using a boomerang without observing safety precautions may result in criminal penalties. The information in this article serves exclusively peaceful purposes. Any person using the obtained data for criminal purposes is fully responsible for their actions.
If you are interested in this topic, then let me suggest a few more:
And finally, on the video, how to make a boomerang out of wood:
Today we will talk about how to make a boomerang with your own hands at home from improvised materials. We will also consider the methods and technologies for manufacturing boomerangs of various designs with visual drawings and illustrations.
The wings of a boomerang - when they spin in the air - are able to generate enough lift. This is due to the fact that the wings have a special aerodynamic shape due to their angle of inclination and sloping bottom.
But phenomenal in the flight of a boomerang is a process known as gyroscope precession - an effect in which a physical body changes the direction of its movement - a key moment in which the return movement of the boomerang is ensured towards the person who threw it.
It is worth noting that the technique with the return of a combat boomerang was used by warriors and hunters solely for training purposes, well, or as a method of some kind of intimidation.
When a boomerang spins in flight, one wing is actually moving slightly faster than the airflow. And since this wing has a higher speed, then, accordingly, the lifting force under it acts stronger. The result of this is an unbalanced effort (the phenomenon of precession), which gradually returns the boomerang.
In other words: The difference in lift between the two sides of the boomerang produces a consequent torque that reverses the turn. Therefore, the boomerang soars in the air for so long and returns back, describing an arc
How does a boomerang work - it is taken in the hand in a certain way and rushes with force at a certain angle perpendicularly upwards, and the stronger the twisting, the farther, the more powerful the throw and return to the starting point will be. So, you swing, throw a boomerang, but at the last moment do not let go of the brush to the end, but abruptly, as it were, hold it and pull it back, as they say, “shake the thermometer”.
With a sufficiently powerful throw, at a distance of one hundred meters, you can freely knock out a dozing rabbit or knock down a partridge on a lonely standing palm tree. If you didn’t hit, it’s not scary, the boomerang will fly back, just have time to bounce (humor) Well, seriously, we will not analyze the processes that lead the boomerang’s flight to its hit accuracy and return to the throw point in the absence of such. Our goal is to correctly manufacture this formidable weapon of the past.
To make a boomerang, hardwoods are needed, such as oak, birch, beech, linden, etc. To give greater aerodynamics and strength, you can glue the boomerang with fiberglass with epoxy resin, then sand and polish it. The profile needs to be made slightly plano-convex, but do not overdo it, 8-12% is enough
You will need to make a boomerang with your own hands:
Cardboard sheet;
Plywood or wood;
Varnish or paint;
Jigsaw;
Plane;
Sandpaper.
First of all, you need to draw the selected boomerang model exactly in full size on a thick and thin sheet of cardboard. It is recommended to choose a sheet size of 50x60 cm. After that, a grid with a square side of 50 mm must be transferred to the cardboard. From the resulting template, we cut a blank from plywood. Its thickness is 10 mm.
Now you need to process the workpiece. This should be done with a small planer in a vise or with the help of a device, which is shown in the image (d). The boomerang needs to be planed, starting from the middle, moving towards the edges of the blades. Their end should result in a thickness of 6 mm. The blades must be exactly the same in shape. To simplify the task, you can make counter-templates of the blades from plywood and apply them to check the correctness of the forms.
The surface should be perfectly smooth, so the next step is sanding. You can use sandpaper for this. After grinding, the almost finished boomerang is covered with a primer, and then with varnish or paint. It is best to use bright paint so that the boomerang can be seen from afar and is easier to find when it falls. In addition, parquet varnish can be used for coating, which preserves the aesthetic structure of the product.
So it’s relatively easy to make a boomerang with your own hands in an hour or two. If possible, it is recommended to make a boomerang out of wood. For this, as a rule, bent branches and roots are used. It is important that the tree is dense, heavy and well dried. For the manufacture of a boomerang suitable: oak, birch, beech, linden. The manufacturing process is exactly the same as in the case of plywood. But it should be remembered that the tree deteriorates much faster than plywood, so it must be varnished or painted especially carefully.
If you followed all the rules when creating a boomerang, then it will have excellent flight qualities and a beautiful appearance. We figured out how to make a boomerang with our own hands, now we need to figure out how to launch it correctly.
Launching a boomerang for the first time, despite all its apparent simplicity, is quite dangerous due to unpredictability, so some caution and attention will be required. You can quite hit someone with a boomerang, so experiments should not be started in crowded places. The optimal place for training agility and accuracy is a meadow or clearing with a radius of 40-60 meters (the more, the better). In the city, such a clearing can be a football field or a wasteland.
The launch of a boomerang is specific in that the trajectory of its flight is a figure eight. Therefore, a person throwing a boomerang should only throw it from the center of the place chosen for training. The projectile will fly forward, making a loop in front of the thrower. He will noticeably return and make the same loop already behind the thrower, thereby forming a figure eight, the execution of which depends on several parameters - the strength of the throw, the quality of the boomerang, the experience of the thrower.
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The boomerang has two main surfaces. The convex front side, on which, as a rule, a pattern is applied, creates its own effects when rotated. The back side, in most cases, is flat, you can also see the pattern on it, but with proper throwing, you can usually see only the front side.
It is customary to hold a boomerang like this: the thumb always lies on the front side. Holding the boomerang correctly means holding it facing you and seeing the pattern well.
The boomerang can be held with both the wing back and the wing forward. This is not fundamental and in any case it is correct - as it will be more convenient for you.
Boomerangs are light and heavy. You can determine the type yourself - the hand will tell you which boomerang you are holding.
A light boomerang in the hand must be fixed with three fingers - it is clamped with the middle, thumb and forefinger (it should be recalled that the thumb, with a correct grip, should always lie on the front side).
It is rather difficult to hold a heavy boomerang with three fingers, so it must be fixed in a fist, up to the little finger, i.e. the grip comes out with four fingers, so the fixation is quite rigid. You can grab deeper, but when throwing a boomerang, then it will be inconvenient to release, so it is not recommended to grab heavy boomerangs deeper than four fingers.
Many beginners, on a subconscious level, launch a boomerang, tilting it like a sickle with which they cut grass, almost parallel to the ground. This is completely wrong. In a boomerang, the aerodynamics are designed so that to throw it correctly means to throw it almost perpendicular to the horizon, at the same time, the slope to the horizon line should be to the right of the imaginary perpendicular. The boomerang should be released during the throw at an angle of no more than 45 ° to the horizon line.
You can also come to this experimentally on your own - with an excessive tilt, the boomerang will take off sharply upwards, after which it will also dive sharply to the ground in front of the thrower. If the throw is made at an angle of more than 45 °, then the boomerang will never even come close to the thrower.
The boomerang should be thrown sharply and strongly. When launching a boomerang, one must take into account the fact that the projectile needs force not only to fly from the thrower, but also to return and loop behind the thrower. Therefore, you should throw extremely hard and sharply, especially if you use a real wooden boomerang for training, and not a toy plastic copy. As a rule, the first throws are timid and cautious, especially if a woman or a child is throwing. But do not be afraid! Any high-quality boomerang is designed for a powerful throw, because if you throw it weakly, it will quickly fall somewhere along the trajectory, which is not very good for him.
It is necessary to throw a boomerang directly in front of you, looking and focusing on the horizon line. There is no need to throw the boomerang up - it is better to throw it straight ahead, because the design of the projectile is such that it will gain the required height on its own.
During the first throws, a situation may arise that, as it may seem to you, you are throwing a boomerang sharply and strongly, but it still flies smoothly, without twisting as required. In this case, you need to master some spinning skills. If you throw the projectile correctly, it will spin as fast as a propeller - the pattern will merge into a solid circle, the blades will not be visible. To ensure maximum spin, a good grip is essential. In addition, the boomerang should not be pushed too hard in the fist.
There are many ways to spin a boomerang, but we will focus on the simplest and most common.
So, we swing and throw sharply, but at the very last second before the boomerang comes out, you do not let go of your hand to the end, but quickly stop it, as if pulling it back. Many of us used a mercury thermometer, so this movement is familiar to everyone - it completely repeats the shaking of the thermometer.
With such a throw, we leave a kind of footboard for the boomerang, we hook the running leg and he, stumbling, rolls head over heels. A boomerang twisted with such a stopper will twist more strongly.
We figured out how to launch a boomerang, but you should also take into account the wind. The wind is almost the main factor that affects the flight path of not only a boomerang, but also all aircraft projectiles and vehicles. Its influence should be taken into account when throwing no less than the strength of the throw and the correct grip. If the wind is very strong, sharply changing direction and strength (intermittent), it is better to postpone the training and work out the theoretical part again.
It is better to start training in calm calm weather or with a slight wind that does not change direction. If you are throwing in the wind, it is recommended that you throw towards the wind a little to the right of its movement. With such a throw, the wind will help the boomerang return to the thrower. Among other things, the wind has a strong influence on the accuracy of the return of the projectile, because the behavior of any aircraft depends on the available air currents. You can make friends with the wind, but it comes only with experience and after numerous trainings. From the first time to comprehend this art is simply impossible.
For sporting and recreational purposes, much lighter "shells" are currently used. They are practically safe, although some precautions must be taken when launching them. Alder five-layer plywood 6 mm thick must be recognized as the best material for the manufacture of a sports boomerang (for smaller sizes that differ significantly from those indicated in our figures, it is necessary to find a correspondingly thinner material). After processing the sheet blank along the contour, it is carefully profiled.
By the way, all the flight properties of the future boomerang largely depend on the last operation, the thoroughness of its implementation and accuracy, so it’s better not to spare time and, in case of failure, start working again. If the profiling of the boomerang turned out to be "five", they are accepted for grinding and varnishing the wood. Finishing - bright oil or nitro enamels. If there are no significant deviations in shape from those indicated in the figures, additional debugging is not required.
It should be noted right away that a combat projectile, originally created by distant ancestors, called a boomerang, is not at all necessarily returned. Special types of boomerangs were not calculated at all to enter the reverse trajectory and were called so because they had the main classification features - rotation in flight around the transverse axis and lengthening the flight range due to aerodynamic (gliding) properties. The returned boomerangs served mainly for hunting small animals and birds.
For sporting and recreational purposes, much lighter "shells" are currently used. They are practically safe, although some precautions must be taken when launching them. Alder five-layer plywood 6 mm thick must be recognized as the best material for the manufacture of a sports boomerang (for smaller sizes that differ significantly from those indicated in our figures, it is necessary to find a correspondingly thinner material).
After processing the sheet blank along the contour, it is carefully profiled. By the way, all the flight properties of the future boomerang largely depend on the last operation, the thoroughness of its implementation and accuracy, so it’s better not to spare time and, in case of failure, start working again. If the profiling of the boomerang turned out to be "five", they are accepted for grinding and varnishing the wood. Finishing - bright oil or nitro enamels. If there are no significant deviations in shape from those indicated in the figures, additional debugging is not required.
When launching a boomerang, use the practical advice of our publication, reflected in the figures. In conclusion - about the possible circuit options. The search for interesting solutions is not limited to the choice of shape and size. To a large extent, flight performance depends on the material of the boomerang. So, for example, a multi-blade "chamomile" scheme in combination with the use of foam can lead to the creation of ... a room version, the flight range of which does not exceed three meters.
Take a sheet of thick paper and apply a grid on it with a square side equal to 50 mm. The side of the boomerang facing the reader is convex. Carefully transfer the contours of the model from the drawing and cut it out. You have received the template. Check the symmetry of the shoulders by bending it along the OA line. The contours of the shoulders must match exactly. The best and perhaps the most affordable material for making a boomerang is plywood. Glue the template to the plywood sheet with rubber glue so that the outer layers of plywood are perpendicular to the OA axis. Using a jigsaw, cut out the outlines of the arms of the boomerang.
All subsequent processing is done on one side only. The other side should remain flat. Using a flat file and calipers, achieve a smooth decrease in thickness from the middle to the ends. Once you've done that, start profiling. This is perhaps the most important part of the job. Cut out counter-templates from tin or thin plywood for each section indicated in the figure. Profiling is done with semi-circular and flat files, and then clean the entire surface with sandpaper. Round off all sharp edges. .
Treat the surface of each of the shoulders carefully, the flight qualities of the boomerang will depend on this. Frequently check the correctness of the resulting cross-sections with counter-templates. It is also very important to carefully balance the boomerang. To do this, hang it on a thread,
attaching it to the section OA: none of the arms should outweigh. If one shoulder is heavier than the other, the cause must be determined. This can be caused either by improper processing or uneven plywood. In the first case, balance is achieved by filing a heavier shoulder, in the second - by inserting a small lead rivet into the edges of the light shoulder. The place of termination must be carefully leveled with the plane of the shoulder.
We warn you: a flying boomerang poses a danger not only to the thrower himself, but also to those around him. It's best to run it on a big one. An open area or lawn, removing spectators as far as possible. To make the model more visible, apply bright stripes of various colors on the shoulders. The necessary water resistance can be given to it by covering the surface of the shoulders with a colorless varnish. Paint the finished boomerang several times with bright oil or enamel paint.
How to make three and four bladed boomerangs with your own hands
Production material - medium and heavy varieties of wood, oak, linden, birch, beech, etc. In fact, it is difficult and not advisable to use plywood for this scheme. In the middle of the two blades, grooves are cut on different sides, after which they are glued together with PVA glue or wood glue, in general, with any sufficiently strong glue for wood. For greater strength, you can connect with small screws.
Usually they propose to make mainly L-shaped boomerangs. In my experience, L-shaped boomerangs are significantly inferior to + (cruciform) in absolutely all characteristics. They don't fly that far. They must be thrown at a strictly defined angle with one specific force, so that he would return exactly back. The time spent in the air is one and a half times less.
The flight of a boomerang is an amazing sight. With a strong throw, in flight, he describes a large loop, flying far up - forward and back. If you throw a stone with exactly this force, then it will not fly even a third of how much a good boomerang flies. Boomerang can be taken with you for outdoor activities. You will get a lot of interest from such a holiday. You can work with it as with a sports equipment during physical education and sports, developing arm muscles, coordination of movements, etc.
I recommend launching a boomerang, especially a sports one, only in large open areas, in little windy weather, in the absence of people nearby. If there are buildings nearby, then the glass may be broken or the projectile will fly somewhere on the roof. If people walk nearby, they can get a teapot. Above are diagrams of amateur boomerangs. Sports are large in size and weight.
How to make the perfect do-it-yourself boomerang:
The blades should be made wider as this increases the number of reinolds.
Lengthening the blades to do more, this will reduce the inductive reactance.
Concentrate the mass at the ends of the blades, this increases the supply of rotational energy
Reduce the number of blades, this will reduce the harmful interaction of the blades
If you do all this, then you will get up to 20% increase in flight data on everything.
It turns out a diagram of a two-blade straight boomerang, similar to a helicopter propeller. But a two-bladed one will be absolutely unstable, and the use of a stabilization scheme is not justified. The three-blade circuit meets all requirements. If the blades are swept back, then the inductive drag decreases at high angles of attack, this happens at the moment of changing the flight path. And the energy of rotation at supercritical angles of attack will not be lost.
It's time for summer and outdoor activities!
When I was 13-16 years old, they made a boomerang with my dad (then I did the second one myself). This topic is interesting to me to this day, which we will continue to talk about.
From prehistory:
As a child, in some magazine, I saw a boomerang with a drawing and instructions on how to make it. Dad and I got excited about this idea and made a boomerang. It was a "classic" boomerang (well, like the natives of Australia;), because it was their weapon). Here we have such a boomerang. Its wingspan was approximately 50-60 cm.
We made a boomerang from plywood 10 mm thick (both the first and second).
After the blades were turned and given the necessary shapes and proportions, we puttyed the recesses in some places and painted them. Boomerang became a little heavier.
As I remember now, we went to the test))) ....
We had a meadow near our house. Very large, a house was being built on the outskirts. People had gardens, in some places reeds grew.
Learned to throw a boomeran d. He returned, but returned with such force that once flying through the reeds - he mowed them down, mowed some potatoes in the gardens)))), Once he returned, so far (he returned 100 meters back from us), that from all over mahu crashed into the house, fortunately not through the window .... the neighbor jumped out with horror and round eyes, hearing a strong slap.
As a result, this boomerang broke, hitting a stone. But we let loose enough :)
Then I made a second one! I lost it, or rather I didn’t find it;) - in windy weather I flew into wheat. The search was unsuccessful.
What do I want to say?
Boomerang is a fascinating and interesting "toy" for both children and adults!
On the Internet, I accidentally came across a scanned copy of the magazine, the drawing on which I made the first and second boomerangs, which prompted me to write this article.
Here is the pattern template that needs to be transferred to plywood
Boomerang is best made from wood. Usually, strongly bent roots and branches of hardwoods such as beech, oak, birch and linden are used. It is important that the wood is dense, heavy and well dried. If there is no such piece of wood, then we use plywood.
For convenience, we fix the boomerang blank on the frame with clamps and proceed to processing with a planer or rasp, and then with a file.
The blades of the boomerang should resemble a "propeller" on one side and be smooth on the other. We process as shown in the figure, observing the dimensions and cross section. To the ends of the boomerang blades are thinned to 6 mm. In the center - boomerang thickness - 8 mm.
After you have processed the workpiece to its final state and all proportions and dimensions are observed, you can start grinding it with sandpaper. The boomerang should be completely smooth and without roughness.
We varnish the boomerang in 2 layers. You can start testing immediately after the varnish has dried, or before varnishing to check the flight performance. Suddenly it will have to be improved.
How to launch boomerangs correctly
The boomerang is launched strictly in a vertical position (and slightly up) with the right hand from behind the head so that the convex side of the boomerang should be on the side of the thumb.
If the weather is windy, then the boomerang should be launched into the wind, if it is downwind, then it may not return.
Here is such an approximate flight path of the "classic" boomerang, which I wrote about above.
There are also four-blade and three-blade boomerangs and they belong to semi-sports and sports
The pictures below show how to make these boomerangs. I also had a cruciform (four-blade) - this can be made even from 2 wooden rulers. He had a flight radius of 20 meters, and if he started it hard, he could make 2-4 circles and return. It is also easy to do - from 2 wooden plates (well, or from a single piece of plywood or wood). The wing profile is exactly the same shape.
More boomerang sizes
There are also a large number of forms, so to speak, of designer boomerangs.
For example, here is this boomerang pattern ... maybe someone will like it))))
What kind of boomerang to make - you decide!
During testing and further launches, safety precautions should be observed, because. it's still a throwing weapon:
Here is the permanent address of this article:
I wish you a good warm season, creative ideas for you too!
If you are interested in how to make a boomerang, then you will find the answer below. To make such a craft means to give joy to yourself and your children. She will become a favorite toy that you want to take with you to nature.
This article is intended for persons over 18 years of age.
Are you over 18 already?
How to make a boomerang: the main points
To make such a craft with your own hands, you need to have an idea about the specifics of its structure. You also need to be well versed in the drawings that will be needed to create it. It is worth noting that made at home, it is no different from the purchased one. She will perform her main task in the same way as her sister bought in the store. Only here there is one condition: when making crafts, you must certainly adhere to the technology and not deviate from the specified parameters.
Boomerang has the following property: after an unsuccessful launch, it is sometimes impossible to find it. Then you have to buy a new one. If you make it from improvised materials, then you can save a lot on the family budget. If you want to make it, but it's a pity to waste wood, then you can use wooden rulers. They will need 4 pieces. To make the product durable, it is recommended to glue them one to the other to get 2 pairs. Then they need to be glued in the center of the rulers. It is recommended to connect them with epoxy. A ruler boomerang is an easy and affordable craft option. It can be decorated with a pattern or left as is.
Children can make their own paper boomerang. Using a sheet of A4 paper, it will be possible to make a star that will be endowed with the properties of a boomerang. Its dimensions will be modest, but it will be easily used by children, and in case of incorrect start-up, it will not injure them and others. If you want to make a star, but more durable, then you can cut it out of an old disk. On it you need to make lines along which you need to cut, and cut it out.
Children will love this craft, because it will be easy to use, and it will be convenient to take it with you on walks.
Making a boomerang is an easy process if you have the right materials at home. If the future craft should only fly and not return, then it will be easier to make it. If she must return, then here we have to deal with the drawings.
How to make a paper boomerang
A paper boomerang is a very quick way to make a craft. To make it, you often don’t have to buy something, because everyone has paper and PVA glue. And if there is no glue, then the origami technique will help to do without it. Even a boomerang folded using the origami technique will fly!
Stages of creating crafts using the origami technique:
- fold the sheet in half;
- fold it in half and unfold;
- fold the halves in half, leaving a gap between them;
- fold the sheet horizontally, leaving the seams inside;
- make triangles from the upper corners and expand;
- turn the corners inward and return them to their original position;
- expand the right side of the craft;
- make a triangle from the resulting rhombus.
Using this technique, you can independently make an airplane. There are options more complex and very complex. You need to choose the ones that you can do.
The airplane can be made out of paper or cardboard. The cardboard craft will fly for a very long time without losing its original appearance. Origami allows you to make products using only a sheet of paper. It can be white or colored. The finished craft can be painted or left as is.
For children, you need to create products that will have round corners. Sharp corners can be injured even in the process of launching a boomerang. Children who go to school can make their own origami boomerang.
To make a product quickly and easily, you can use ready-made templates. They are on the web. If you have a printer, you can print them out and use them to make crafts. This will allow you to adhere to the specified parameters and not violate them even a centimeter.
The diagram, which can also be found on the Internet, will help make the process of creating a boomerang with your own hands quick.
To make a plane out of cardboard, you must have:
- cardboard;
- A4 paper;
- PVA glue;
- scissors;
- ruler;
- pencil.
To make a cool and unique boomerang, you need to carefully consider its decor. If you made an airplane, then it can be painted in military style. If you made a boomerang, then you can paint it with acrylic paints. A simple and natural wooden boomerang can be varnished and left as is. It is allowed to use colored varnish to cover the product.
The safest boomerang is round. It is suitable for the smallest children. You can buy it or make your own out of paper.
A simple boomerang can be made in a few minutes. But more complex models require more time. For example, if you decide to make a wooden craft, then the wood must be dried before starting work. You also need to calculate the time for drying the top layer of the coating. This will take several days. Therefore, if you plan to create a craft for the holiday and give it as a gift, then it is better to start making it a few days before the celebration. So you will definitely be able to make a gift on time.
How to make a wood boomerang
Wooden boomerang is a stylish and durable toy that will delight both children and adults. It is lightweight and durable. She will not be afraid of unsuccessful falls and blows. It will not deteriorate if used in rainy weather or during snowfall. Therefore, if there is a desire to make crafts for many years, then it is worth spending time creating a wooden toy.
The best material for a toy is quality wood that has been dried and has no knots. The roots of old trees are also suitable for this work. If there is no wood, then plywood will do. A craft made from plywood will have a very light weight. A wooden toy can have a different shape. A craft with two blades, three blades or four blades is allowed.
To make a boomerang fly and return, you must definitely use the drawings. They will help you create the craft correctly. The drawings have all the required angles. They can also be used to determine the equilibrium point. Finding such drawings on the net is not a problem. If there is no Internet, then such drawings can be searched in magazines and books a la "Do it yourself".
How to make a boomerang that comes back?
Creating a returning boomerang is the hardest thing to do. Here you need to have a lot of patience and experience with wood or other materials. Also, the craft that is returned can be made of paper. If you are making a toy out of wood, then you need to use a wooden jigsaw to cut out the drawing. Mandatory steps in creating a toy are processing the top layer with a file, and then with sandpaper. In order for the toy to fly and return, you need to make the wings smooth on one side, and on the other, like in a propeller.
The flying boomerang is a very exciting toy that will become an indispensable attribute of hiking and outings. Adults and children will love it. A true boomerang that returns will never be lost. It will always return to its launch location. Therefore, it is recommended to make it in the first place.
To achieve a positive result from work, you need to do everything slowly. Haste in this matter will only get in the way, and the product will turn out to be wrong.
In addition to the fact that the toy must be created correctly, it must be able to run. It should be launched strictly in an upright position, put your hand behind your head and let the toy go with force. If the launch process fell on windy weather, then you need to do it in the wind. If you try to let it go downwind, then you can no longer see your favorite toy. Of course, you can try to find it, but the search is not always successful.
There are models of boomerangs that belong to the category of sports and semi-sports. They can be made if you already have experience launching boomerangs. In addition to the usual forms, there are also designer models, the shape of which is very different from the usual forms of boomerangs.
Startup safety is paramount. It is necessary to launch the toy away from electrical wires, crowds of people and cars. You should also move away from the intended place of return of the toy to avoid injury.
Today, the boomerang is just fun, although earlier it was one of the means of hunting. The instruction article will give basic information about what this item is, what its types are, and also how to make a plywood boomerang correctly so that it functions well.
General Features
As such, the boomerang is a sporting weapon today. A standard gun has approximately the following parameters: from 30 cm to half a meter between its edges. But this is the weapon to which the saying “small, but remote” comes in handy, because if the boomerang is done correctly and even more correctly launched, then its striking ability is really amazing.
The shape of the gun is a bit like a wing, and it is this shape that allows you to throw a boomerang along a certain trajectory. But its flight is affected not only by the shape, but also by the material and profile of the "wing", which must be calculated and designed with great precision. The aerodynamic characteristics of the boomerang will depend on the accuracy of the calculations.
So the upper and lower planes of the gun should be slightly shifted, then a good height and range of the boomerang will be provided. The most reliable and functional boomerangs made of natural wood, but this is an expensive pleasure. Therefore, we propose to make a sports item from plywood.
Creating a drawing
So let's start practicing how to make a plywood boomerang. Project dimensions and drawings are the first things to master before picking up a saw and other tools. To make the perfect boomerang with a simple configuration, you need to create the drawing below.
A full-size drawing is a kind of template for a future workpiece. Each cell is equal to a square with a side of 5 cm. This is the design of the simplest type of boomerang. You can also build three- and four-blade guns. Below is a drawing for a sporty 3-blade boomerang.
The practice of creating a homemade boomerang
So, the first step is to make a template on paper according to the previously created drawing. To do this, draw a grid of 50x50 mm squares on a thick sheet of paper. Next, transfer the contours of the future tool from the diagram to the sheet and cut out the template. Glue this template onto plywood. We cut the plywood along the contour of the glued template with a jigsaw (manual or electric).
Important! The boomerang must be symmetrical, so you need to fold the paper template along the axis and check that its sides match.
It is clearly demonstrated how to make a plywood boomerang in the video below. The article will describe the process of creating a simple boomerang, what we are doing, and what is needed for this. So, from the materials we need plywood, it is better to take sheet material consisting of several layers. The acceptable thickness of such plywood is 8-10 cm.
Note! One side of the boomerang remains completely flat, without bulges. Finishing is done on one side only.
Now it is necessary to give the blades the wing-like shape necessary for aerodynamics. Using a flat file, we give the boomerang the desired profile. The ends of the blades can be slightly thinned, leaving more "body" in the middle. It will be easier to do this with the help of pre-created counter-templates.
Counter-templates can be made from the same thin plywood or from sheet metal. Using a flat file, profile the surface and carefully grind. Particular attention should be paid to the edges, which must be carefully rounded. And be sure to balance the gun.
To do this, along the OA axis, which is indicated in the drawing above, we attach a thread to the boomerang and hang the tool behind it. Both blades should be at the same level, if neither of them outweighs, then the boomerang is perfectly balanced. In case this is not the case, then a lead rivet can be attached to a lighter blade to achieve balance.
Now we need to process our workpiece to perfect smoothness. To do this, we use sandpaper of different grain sizes. Coarse-grained goes first, then finer. This will take a lot of time and patience, but if you have a grinder, then half an hour is enough.
In conclusion, you can decorate the boomerang, or you can simply open it with varnish in 2-3 layers. It is recommended to use a varnish for yachts for this case, it fits perfectly and gives a special texture to the material. In addition, it perfectly withstands mechanical stress when a boomerang collides with objects.
Important! In the process of coating the product with varnish between each subsequent layer, you need to withstand some time so that the coating comes out smooth and even.
