✅ DIY mushroom anchor - netfishing24.ru

The fact that a boat anchor is considered an indispensable accessory is recognized not only by every avid lover of boating, hunting or fishing, but even by an amateur who decides to go out on the water for the first time. Persons who have special certificates for the right to drive small boats (they are often called water motorists) have experienced from their own experience the need to equip the vessel with an anchor, since its presence is checked when registering the vehicle.

A PVC boat anchor can be bought in a specialized store, however, unfortunately for many, it cannot be chosen according to your preferences. The device must first of all be used for its intended purpose. This means that the anchor serves to hold the craft at rest in the current or during gusts of wind, and the outcome of fishing, hunting, and the degree of safety of the boat owner, as well as passengers, depends on its quality. I don’t want to remind you of the sad statistics, but on the water, even the most harmless mistakes at first glance often lead to tragic consequences.

Today you can not only buy an anchor, but also choose the most suitable model. The days are not far off when boat owners were forced to get out of the situation on their own. There are still examples made from caterpillar tracks, weights or lead castings. Indeed, “museum” exhibits can supplement this list: a crankshaft, a barbell, an electric motor, dumbbells. Have you ever heard of a “dead” anchor? These are cargo that are submerged forever, meaning they never rise to the surface. The boat floats to the place where the anchor is sunk, the halyard is connected, and the boat is moored.

Making an anchor at home

Author:

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Last year, in the summer, my family gave me a boat. Accordingly, the question became what to use as an anchor. After reading a lot of material on the net, I decided for now to make do with a canvas bag filled with sand. Everything seems to be not bad in such an anchor, but on a hard bottom the boat still drags, so I decided to make an anchor out of lead, like a mushroom. I couldn’t get around to it, but before the opening of the boating season I finally got the chance. Yes, and my friend supplied the dishes for melting lead. So, I bring to your attention an anchor made with my own hands.

First of all, I needed lead. Then the dishes for melting it, half a bucket of wet sand (for the mold), a chisel, a hammer, a drill with a drill bit and a gas stove, preferably with a hood above it.

Lead can now be found without problems, it can be plates from acid batteries, weights for balancing wheels, but you never know. In my case, this is lead left over from my father-in-law, who was a noble fisherman.

Old weights for donks, feeders, springs, just plates made of lead.

Half a bucket of sand, wet.

I took about 4.5 kg of lead for melting, although three kg would have been enough.

An old steelyard, dating back to the times of the USSR!)

An aluminum saucepan, with pliers I bent a small “spout” so that the flow of molten lead was more directed.

Pour the lead into a saucepan and put it on fire. While the melting process is underway, we are working on the form.

In wet sand, using an ordinary handle from a small garden rake, we make the shape of a yakar rod, the leg of our future “fungus”.

Using an ordinary tea saucer we make the shape of the “hat” of our “fungus”. Simply press the shape into the sand and remove excess with a spoon.

The saucer is also from the Soviet Union.

It took about 15 minutes to melt the lead. Pour the molten lead into the mold.

Add water to help it cool faster. We get something similar.

We remove unnecessary sagging with a chisel and hammer. Fortunately, the lead is soft, there were no problems.

We drill the leg of the “fungus” to attach the anchor cord. The hole turned out a little lower than I wanted, the reason for this is the softness of the lead, the drill slips, even if you crack it! Well, not so bad, as it turned out in practice.

Then we drill out the “fungus” cap. It would be necessary to have holes with a larger diameter, but, as it turned out, the largest drill I have is not very large. ) These holes, in my opinion, should reduce the resistance of the anchor to the flow, but this is not necessary.

Control weighing showed about 3.5 kg! In principle, this is what I tried to achieve!

We carefully tap our “fungus” with a hammer, removing unevenness, roughness, and burrs that could damage the boat.

We knit a cord on the reel and to our “mushroom” and this is what we get at the output:

An hour of time and 12 hryvnia price. )

Practical tests on the Seversky Donets River showed that the anchor copes with its duties perfectly! Not once did the boat pull like it was on a bag of sand. On a sandy bottom, the anchor bites right into the bottom! In general, everything worked out!

The asking price is 12 UAH for a cord 15 meters long! All the rest of the material was at home! I hope this helps someone save money on buying a store-bought anchor!

Anchor: types, choosing one suitable for boats/small craft, nuances, making it yourself

Owners of small watercraft are encouraged to make an anchor completely with their own hands not only by the fairly high price of factory anchors. Standard anchors are produced weighing from 5 kg, which is a bit much for a boat with a displacement of up to 500 kg. Especially if they go out into a closed, calm water area (pond, small lake, river). The anchor alone takes up a lot of space in the vessel, and in a tiny boat, such as, for example, a dinghy or skiff, which is popular due to its high qualities, it is inconvenient to hold an unreasonably large anchor. But you can’t stand on just anything instead of a reliable anchor.

It was not for nothing that Joseph Conrad called anchors “honest pieces of iron”: neglecting the reliability of an anchor can cost the life of the boatmaster and passengers even close to the shore. A homemade anchor should hold the ship as firmly as a proprietary branded one, and should not get lost in the ground more often than it does. The reliability of commercially available ultra-light anchors is not guaranteed. Do not trust company certificates: no marine or river register will include an anchor weighing less than 5 kg in its register. Prohibited by international navigation safety regulations. And they, like army regulations, are written in human lives.

Fishing boat at anchor. Caricature

A real tangle of problems is the PVC boat anchor. Firstly, the anchor is only part of the anchor device, consisting of several structural units. Each of them, according to the main rule of strength of strength, “Where it is thin, it breaks,” must be no less reliable than the anchor itself. There is simply nowhere to place all this in an inflatable boat. Secondly, when inflatable boats in the budget price category began to be made not from rubber or rubberized fabric, but from plastic, it turned out that a raised anchor in such a boat could be dangerous - the number of accidents on the water caused by the rupture of the cylinder or the bottom of the boat by the anchor, has increased sharply.

The purpose of this article is to help a novice boatmaster solve the problem of choosing a prototype anchor for his vessel and tell him how to properly make an anchor in accordance with the type of vessel design, its displacement and sailing conditions. A significant part of the material is devoted to the choice and features of the manufacture of anchors for “ultra-small” vessels (up to 0.5 tons) operating on inland waters. The bottom in them is often marshy, muddy or peaty; in such a situation it is difficult both to ensure the proper holding force of the anchor and to prevent it from sinking into the ground.

Note: all inflatable boats have one more difference from normal displacement vessels - very low frictional resistance against the water.
An inflatable boat clings to the water less strongly than a glider. On the one hand, this is good for calm water, since it is easier to keep the boat in the current. But in excitement, on the contrary, it is more difficult, because... the float boat tugs hard on the anchor rope. And anchoring an inflatable boat is also more difficult: he cannot rely on the vessel to pull him, lay him down properly on the ground and help him cling to him. Here, the anchor for an inflatable boat must rely only on itself: it should be laid correctly without a jerk from the vessel and have absolute tenacity (see below).

Making a collapsible anchor

A simple version of a collapsible anchor is easy to move and compact. But you should not use it where there are a lot of snags.

Materials and tools you will need:

The clasp and eyelet come in handy if the anchor gets caught on something.

In order not to lose the weight you have made, tie it correctly: first put it through the clasp, then securely fix it on the bottom nut. If the anchor gets caught on something, just pull the rope: the clasp unfastens, the structure turns over and is easily released.

Making a "cat"

The weighting material is also convenient, takes up little space, and is mainly used in areas with clean soil.

For a DIY design you need:

You will also need a grinder and welding.

The cat anchor you create will be useful if you follow these simple instructions:

Be careful not to pierce the boat with this design.

Making the “Kurbatov design”

This is a wire clamp and one plate, more precisely, a paw. It penetrates into the ground when falling, the angle of inclination is ensured by a fixing bar (that is, it is better to use the Kurbatov anchor in places with a soft bottom). Drawing:

To make such a homemade product you don’t need many elements, but you do need experience with welding. But thanks to welding, the process of creating a structure becomes less time-consuming.

If the weight of such a structure is too small, you can supplement it with a lead weight.

Making a Danforth anchor

A special feature is the elongated lower cross member, thanks to which the structure does not tip over when it comes into contact with the bottom. The paws are triangle-shaped, flat, next to each other. This design can bury itself very deeply into the bottom of the reservoir.

For this homemade product you need:

Useful video on how to make an anchor for a boat:

You can make such an anchor heavier by pouring lead into the pipe.

We hope you found this article about how to make a boat anchor helpful. But there are other practical ways. Share your methods and useful tips in the comments, and remember that a huge assortment of cool boats for beginners and experienced fishermen awaits you in the ARK store.

Question answer

Question: How to make a good boat anchor?

Name: Azat

Answer: Each design has its own instructions. For example, the basic steps for a collapsible anchor are: screw the screw into the hole in the pipe; fill two parts of the pipe with lead; after hardening, tighten another screw; saw off the heads of the screws. Then comes the work with a file, you also need to bend the ends, drill holes, screw on the ring nut, etc.

Question: What can be used to make a reliable PVC boat anchor?

Name: Nikita

Answer: It all depends on the type of anchor. For the “Cat” you need a metal pipe, 4 rods (rebar is also suitable), and also a cable. Kurbatov's design is made of steel sheet, metal washers, steel wire and metal rod.

Question: How to make a real anchor for a boat?

Name: Radik

Answer: According to the type of construction. For example, for Kurbatov’s design you need to bend the wire like a spindle. Weld a metal strip on top, make a loop at the ends of the “spindle”, insert a rod, attach washers, strips and a “foot”, connect the frame edges and a metal rib.

Question: How and with what can you weight an anchor for a boat?

Name: Albert

Answer: With a metal chain: it can be wrapped around the trend or tied to the spindle as a halyard. For weighting, you can use a lead weight.

Source

Is the cat an anchor?

To people who go fishing on an old rubber boat, all these considerations may seem far-fetched: of course, it is known that the long-established anchor for a rubber boat is a cat. And it’s not difficult to make: three pieces of reinforcement, two of which have flattened ends, a little bending, a little welding, and the cat is ready. And the tenacity of a cat is absolute if thrown correctly. It is not without reason that hook cats are used in other activities.

Firstly, in terms of holding power, the cat anchor is quite average. True, for a boat that glides through the water almost like a fallen leaf, this is not so significant. Another significant thing is that it is very easy to lose a cat on rocky or muddy ground. When scrap metal was lying everywhere underfoot, and the master at work and without a bottle allowed him to use welding and a bending machine for personal purposes, it didn’t matter, but now are different times.

Secondly, even then there were plenty of accidents on the water due to grapple anchors. And now it has turned out that a cat is dangerous not only in a PVC boat, but also in one made of plywood without a hull, like the same dinghies or skiffs. Molded folding crampons are safe, hold an ultra-small boat well on any ground, are compact, but are unfairly expensive. Although for a sewn boat with a rigid hull approx. A 2.5-3.5 m long homemade folding cat with a swivel paw is also suitable, see for example. video

Video: homemade cat anchor

However, in a PVC boat, even such a cat turns out to be bulky and dangerous for the vessel. Therefore, including what is said above, residents of coastal large waters do not consider a cat to be an anchor at all. And a sailor will never say: “give up the cat” or “stand on the cat,” just as he will not say “drop anchor.” A cat is not an anchor. But it is still possible to turn a cat into an anchor! Specifically for low water inflatable boats with a displacement of up to 300-400 kg. Moreover, it is very compact, convenient, reliable and safe. How exactly – we will return to this later.

What should a good weighting agent be?

Heavy? Of course, that’s why he’s an anchor! But which one exactly? Here are the main points for calculating the weight of a weight for an inflatable boat:

In addition to weight, the anchor must meet other standards. For example, the type of soil where fishing will take place, the characteristics of the reservoir and other points are important. For example, in places with “deep water” a plow anchor is good, but for strong currents it is better to choose a mushroom or Northhill.

Of course, it is impossible (or very difficult) to make one anchor that is ideally suited for all situations, but you can build several types or one for the conditions in which you fish most often. The choice is yours!

In any case, homemade anchors must meet at least the minimum requirements:

Basic Rules

Weight and cable

The main thing that determines the reliability of an anchor is its mass, weight. For rowing and motor boats with a rigid hull up to 5 m in length, the mass of the anchor must be taken at least 1% of the displacement of the vessel when fully loaded, but for a displacement of up to 500 kg - at least 2.5 kg. For the same vessels equipped with permanent or standard removable sailing rigs, the weight of the anchor is increased by 25-50%, in case of anchoring under the spar. If the anchor is Admiralty (see below), its mass is increased by another 20%. The tensile strength of the anchor chain or cable must be at least 50 anchor weights.

Note: the reliability of the anchor is greatly increased by replacing the part of the anchor cable closest to the anchor with a chain. For a boat up to 4.5 m long and with a displacement of up to 500 kg, it is enough to replace the first 1.5-2.5 m of cable from the anchor with a chain.

It is advisable to take the weight of the anchor for inflatable boats used in inland waters according to their human capacity. The calculation formula, if there are no sails and the boat can carry no more than four people, is simple: anchor as many kg as there are people holding the boat, and add 0.5 kg. With sails and chain it is more difficult; general data is summarized in the table:

What anchors are suitable for inflatable boats?

When choosing a reliable anchor for an inflatable boat, you should pay attention to a model such as a cat anchor - it is easy to transport, and it will not damage the surface of the boat. Such anchors weigh from 1.5 to 12 kg and can be used on any soil. The anchor design has metal horns that can unbend when the load increases.

For inflatable boats, you can also use it without fear: anchor-hoop, anchor-bell, anchor-umbrella - these varieties perfectly fulfill their purpose.

Source

How to make a mushroom-shaped anchor yourself, why it’s so good

Determining the mass of the anchor

The main thing you need to rely on when choosing is the weight of the boat anchor. It depends on the size of the vessel, more precisely, on its length. For example, for a boat 2 meters long you will need an anchor weighing 2 kg. If the length is 3 meters, you can make two anchors of 1.5 kg each. By the way, it is with the help of two anchors that it is possible to firmly fix the boat stretched (in the bow and stern).

If your anchor is not heavy enough, there is no need to buy or make another one. You can make it heavier, for example, using a metal chain. A meter chain with a diameter of 1 cm can increase the weight by 2 kg, even a little more. You can use this additional weight like this:

Remember that for boats that are registered with GIMS, the anchor must weigh at least 5 kg.

The photo shows a useful table that will help you choose the right anchor for a PVC boat:

Purpose

To determine the beginning of the use of anchors, it is necessary to dive deep into the history of navigation. Even the ancient Greek sailors knew very well that a ship that, for any reason, lost its sail, practically lost control. In this case, one could only hope for the mercy of nature, because the ship became “subordinate” to the wind and waves. There is no need to say what the fate of the ship turned out to be in this case.

Having lowered the anchor, the sailors could calmly wait out the bad weather in relative safety. This is why ancient sailors called the anchor “sacred.” This also explained its incredibly high cost. Even in religious cultures, the anchor was revered. In Greek it sounds like “Soter”, which literally means “Savior”, and old tombstones often had an image of an anchor.

In the modern industry of water transport, it is unlikely that anyone will turn to a metal product, although it is difficult to judge anything here, because the veneration of a cult is a personal matter for everyone. And yet, the anchor did not cease to perform its main function. The only thing that has changed is the selection options. Now the determining factor is not so much the size of the device as its shape.

How to choose

Owners of light inflatable PVC boats are interested in this question. A lot depends on the right choice. Everyone understands that it is impossible to rely only on the weight and dimensions of the anchor, especially in conditions of limited space on the vessel. We can propose two elementary rules that take into account all the necessary parameters.

The maximum weight of the load that the boat can support is chosen as a guide. According to the first rule, the mass of the anchor is determined. It directly depends on the displacement of a particular boat model.

The mass value is approximately 10% percent of the mass of the load. For example, if the boat together with its cargo has a mass of 250 kg, then the mass of the anchor will be at least 2.5 kg.

The first rule is formulated for payol boats.

The selection of anchors for the NDND boat is carried out according to the second rule. Here the length of the boat is of decisive importance.

The mass of the anchor in kilograms is one hundredth of the length expressed in centimeters. For example, for a three-meter NDND vessel you will need a device with a mass of 3 kg.

Now let's add a fly in the ointment. The fact is that the calculations given are very conditional. Indeed, the mass of the anchor is only one, but not the only factor. The holding force depends on the type of bottom soil and the shape of the anchor. In sandy soil, the stopping device gets stuck better, so they use a simple ratio: 1 kg of load per meter of boat. It should be clarified that this relationship is valid specifically for an anchor that has a classical shape.

Using another load (stone, iron bar, piece of rail), you will have to increase the mass by as much as 5 times. The rocky bottom will not allow the anchor to strengthen, no matter how much mass it has.

To summarize, we can define a list of questions that every buyer must answer.

What type of bottom is in the reservoir?
Is there a current?
Is there a tendency for air masses to constantly flow (is the wind blowing)?

The data already indicated is enough that it is impossible to select a universal device even for a specific boat. Considering some factors, you will have to neglect others.

Folding cat designs

Among experienced fishermen, several versions of the grapple anchor have become widespread, simplifying its storage:

Option 1. The upper pair of paws in this design is movable. When using an anchor, the pairs of legs are fixed and located at an angle of 90 degrees to each other. After the anchor is etched on board, the upper pair rises and rotates, positioned parallel to the lower one, reducing the dimensions of the anchor. The movable pair of paws is fixed using bushings and holes.

Option 2. It differs from the first in that while the anchor is at the bottom, the movable pair is fixed at its workplace by a spring. The same spring presses the free pair, but located similarly to the stationary one when the anchor is folded.

Option 3. In a cat of this design, all the paws are connected to the base of the anchor by hinges and, in the stowed position, are pressed against the spindle. It turns the paws into the working position, pressing them to the bottom of the anchor, the clutch moving along the spindle. The same coupling, being in the upper position, fixes the paws pressed to the spindle.

Anchor cat

Sometimes the grapple anchors of the listed options have their paws upgraded. The improvement consists in the fact that the anchor arms, made of three- or four-millimeter wire or reinforcement, bend when etched with great force, releasing the anchor from the ground.

Features of a mushroom anchor

No matter how paradoxical it may sound, there are not many types of anchors for light boats. One of them is the mushroom anchor. It got its name for its specific shape, reminiscent of a mushroom. This invention, despite its simple form, has many advantages. The absence of pointed elements minimizes the likelihood of damage to the boat material when etching the anchor. Additional resistance is provided by the soil entering the cavity of the “mushroom cap”. The holes made in the cap facilitate the penetration of soil through them, which provides additional “suction” of the anchor.

The holding power of these structures is so great that they are preferred to be used in places with large currents and strong winds. Naturally, the highest performance occurs on a muddy or sandy bottom. This is where a high degree of viscosity is achieved. The rounded shape of the cap, even if it consists of separate sectors, still does not contain sharp or right angles. Such an anchor will not catch on snags or other unwanted obstacles. After lifting, the device is easily cleared of sludge and washed. Models coated with polyethylene are especially valued. This protective layer prevents the development of corrosion.

How to save an anchor

You can avoid losses when removing from the water an anchor that is firmly attached to the bottom soil or caught on thick roots using the following method: using an additional buoy rope when operating the anchor.
The cable is secured at the bottom of the anchor, together with the intersection of the legs, and equipped with a float made of floating material - foam plastic or wood. The float indicates the location of the anchor.

If problems arise with raising the anchor, it is lifted from the bottom using a buoy rope.

Homemade option

You can make a mushroom anchor for a PVC boat with your own hands. You don't need to draw a drawing for this. Aerobatics is a load cast from lead. Unfortunately, not everyone has the opportunity to make a suitable mold or collect the required amount of lead.

The simplest option, although it causes laughter, turns out to be quite effective. The anchor is made from a frying pan. First, the kitchen utensil is removed from the handle. A hole is drilled in the center. The role of the mushroom stem will be played by a steel rod with a diameter of 2 cm. A thread should be cut at one end of the rod. It will be attached to the pan using a nut. A hole for the halyard is drilled at the second end. After assembly, the anchor is coated with waterproof paint.

Some tips for using anchors

Making an anchor with your own hands is not difficult. It is much more difficult to learn how to use it. If you don’t do this, then losing it won’t be a big deal, but making an anchor for every fishing trip is very expensive. Therefore, it is important to know how to fish without losing the anchor.

How not to sink an anchor

Each body of water is characterized by its own type of bottom, which can be different in different areas of the same body of water. Therefore, it is difficult to determine if a device is located on a hard or muddy bottom unless you try to study it. Unfortunately, most anglers don't do this. To avoid leaving the anchor at the bottom of the reservoir, you need to do the following:

anchor to the trend;
provide it with a buoy;
pull out using a buoy rope.

Some useful tips

Finally, here are a few simple truths that can be considered useful advice. They are quite obvious, but in some cases ignorance led to unpleasant consequences. When going on the water, you need to at least approximately know the depth of the reservoir. The length of the anchor halyard should be several times greater than the maximum depth of the river, pond or lake.

For a more secure hold and grip, it is recommended not to tie the rope directly to the anchor. Between them you should insert a section of chain 1-1.5 meters long. The chain lying on the bottom provides additional grip. On large vessels, the chain plays a decisive role in holding.

In case of strong current or wind, two anchors are usually used. The first anchor, the main one, is calculated according to the rules given above. The auxiliary anchor may be slightly lighter than the main one, but its minimum mass should be half the mass of the main one.

Making a lead anchor with your own hands

Last year, in the summer, my family gave me a boat. Accordingly, the question became what to use as an anchor. After reading a lot of material on the net, I decided for now to make do with a canvas bag filled with sand.

Everything seems to be not bad in such an anchor, but on a hard bottom the boat still drags, so I decided to make an anchor out of lead with my own hands, like a mushroom. I couldn’t get around to it, but before the opening of the boating season I finally got the chance. Yes, and my friend supplied the dishes for melting lead. So, I bring to your attention an anchor made with my own hands.

First of all, I needed lead. Then the dishes for melting it, half a bucket of wet sand (for the mold), a chisel, a hammer, a drill with a drill bit and a gas stove, preferably with a hood above it.

Lead for an anchor can now be found without problems, it can be plates from acid batteries, weights for balancing wheels, but you never know. In my case, this is lead left over from my father-in-law, who was a noble fisherman.

Old weights for donks, feeders, springs, just plates made of lead.

Half a bucket of sand, wet.

I took about 4.5 kg of lead for melting, although three kg would have been enough.

An old steelyard, dating back to the times of the USSR!)

An aluminum saucepan, with pliers I bent a small “spout” so that the flow of molten lead was more directed.

Pour the lead into a saucepan and put it on fire. While the melting process is underway, we are working on the shape for the future homemade lead anchor.

The best boat anchor in 30 years

I found the best option for myself (I fish on the Ob River with a spinning rod). I want to talk about a homemade, improved design of one of the popular anchors - for motor boats and motorboats. This anchor is also well suited for inflatable boats.

Those who have the tools and skillful hands can do it themselves. Others - order from a familiar master.

Anchor "Mushroom"

(this variety is also called
“Chamomile”
) has long been used on motorboats. It is best suited for sandy bottoms.

More often, such an anchor is used with electric winches. The weight of the usual ones, which are sold in stores, is uncomfortable for lifting with your hands. To hold a boat measuring 3.6 - 4.6 meters in a river current, such an anchor will weigh at least 6 kg. Or better yet, 8 kg.

A winch for a small hull boat (and especially for an inflatable one) is not needed. I fish with a spinning rod - it involves frequent rearrangements, changing places - searching. An anchor that is too heavy does not add joy to fishing.

Through calculations, trial and error, a similar anchor was made, but with some modifications. My friend made it. I am testing and talking about this anchor.

Weight 3.8 kg. Holds the boat perfectly (even on the Ob riverbed). Easily removed from hooks in the thickest snags (and ours is serious).

Over the course of two seasons, this anchor was tested on different boats. Crimea

(length 4.2m), BERKUT S (4.7m) and
Alumax 355
(3.5m). Testing (more precisely, regular fishing on the Ob) was not gentle)))

Types of anchors for a PVC boat with your own hands - photo drawings

Without an anchor, especially in the current, you can hardly count on fishing at all. But this does not mean at all that an anchor will not be needed on a body of water without a current. As a rule, underwater currents may be present in any body of water. In addition, there is not a day without wind, which is capable of driving a boat across a body of water without problems. Having an anchor will help solve many problems. In this regard, the presence of an anchor should not be underestimated, especially since making one yourself is not so difficult. The most popular designs today are the following:

Hall anchor;
cat anchor;
anchor-Kurbatova;
a mushroom-shaped device for fishing in the current;
Danforth anchor, designed for any type of bottom.

Each design has its own advantages and disadvantages. To understand which option is most suitable, you need to consider each design in detail.

A simple model of a collapsible anchor

To make it you need to have the following parts:

metal pipe, diameter 25 mm and length 270 mm;
one nut and one bushing;
four pieces of metal: two smaller and two larger;
two metal rings;
two kilograms of lead.

Assembly:

A sleeve is attached to the end of the tube. Four strips of steel will serve as paws. The entire structure is held together with a nut. To increase the weight of the anchor, lead is poured inside the tube.

Kurbatov's welded anchor

This is a welded structure, so fewer parts will be needed. Here they are:

steel rod;
steel wire;
metal pieces.

You need to bend the wire into something similar to a spindle, and the rest of the parts are welded to this blank. Due to the welded pieces of metal, the structure is securely held at the bottom.

Anchor cat

This anchor is perfect for small PVC inflatable boats. As a rule, it is a folding structure that takes up a minimum of usable space. The design is quite light and in the presence of wind it needs to be weighted down. The arms of the anchor are attached to a kind of spindle bent from wire. The position of the paws can be adjusted by moving them along this wire.

Pyramid anchor

To make such a structure, you need a pyramid-shaped shape. Alternatively, it can be made from iron sheets. After this, the mold is filled with molten lead. So that the anchor can be fastened, after pouring, a piece of wire is inserted into the still hot lead. After the lead hardens, the wire is securely fixed in the structure. The second option allows you to do without lead. It involves attaching plates of various sizes to form a pyramid. The advantage of this method is that you can easily adjust the mass of the armature by removing or adding plates. This is easy to do if you take a metal threaded rod and drill a hole in the center of each plate. The entire structure can be fastened with a nut. In this case, you should dial up the platinum so that the smallest one is at the bottom.