How to make a coffee grinder from improvised materials. Making a coffee grinder with your own hands Do-it-yourself coffee grinder motor from a washing machine

On the Internet you can find many different things made by yourself, useful and not very useful. , .

The “homemade” option also included a coffee grinder, which can be made from an old grinder or any other suitable engine.

A homemade coffee grinder made from a grinder is unlikely to be able to compete with modern equipment for crushing coffee. But for the sake of curiosity and your own satisfaction, doing something with your own hands, assembling a coffee grinder from a grinder is quite simple.

On the Internet you can already find a video on how to make a homemade coffee grinder from a grinder with your own hands. The problem with this design is that it uses sharp knives for grinding coffee, which are ineffective at completing the task.

Or rather, they do it, but in the end the coffee needs to be sifted with a sieve after such grinding, which is not very convenient, and in this case there will be a lot of waste.

For this reason, it is better to slightly change the configuration of a homemade coffee grinder and install a cylinder on an engine made from a grinder or any other suitable size and power. Sandpaper is attached to the surface of the cylinder. The size of the coffee grind will depend on the size of the beans.

1. First, a container is made in which the coffee beans will be ground. The walls of the container should be arranged in the form of a dome so that the ground coffee can easily roll down and be picked up again by the grinding cylinder.

On top, the container for a homemade coffee grinder should be tightly covered with a lid with a small funnel into which new beans could be gradually fed during the grinding process.

2. At the next stage, you need to make millstones for the coffee grinder with your own hands. It is better not to make the cylinder diameter more than 10 centimeters, although the millstones for a coffee grinder can be larger depending on the engine power.

3. The motor from an angle grinder or any other small motor, for example from a VCR, is installed at the bottom of the coffee grinding container. Here you also need to make a hole for the rod, onto which a cylinder with sandpaper for grinding coffee (millstones) will be attached.

Be sure to seal the hole through which the motor rod passes with a seal to prevent coffee dust from getting into the motor.

A homemade coffee grinder from a grinder is easy to make with your own hands. You can experiment a lot with its design, add additional elements for ease of use.

The main thing is to always remember about safety measures when constructing anything, including a coffee grinder with your own hands!

Modern household appliances are not durable. And if you use the device for other than its intended purpose, then the rate of its failure increases significantly. This can happen with a coffee grinder if you grind sugar and other, harder types of products instead of coffee beans. But, regardless of whether the device has broken down due to improper operation or other objective reasons, you should not rush to contact the service center. Most likely, it is quite possible to repair the coffee grinder yourself.

Device structure

Today's electric coffee grinders come in two types: burr and impact. The lion's share space in the case The electric motor takes up up to 80% of the device. The remaining area is allocated for coffee beans. For example, for millstone models The coffee grinder consists of three sections. The first is filled with a portion of raw materials for processing. In the second, grinding occurs directly. And in the third, finished products are assembled.

Burr coffee grinder

IN impact type designs knives installed. It is they who grind the grains into powder at high rotation speed. Sometimes such a mechanism is called a rotary mechanism. And it only has one hopper that holds the roasted coffee beans. This is where processing takes place. And the ground raw materials are simply poured into another container. In its design, this coffee grinder is very similar to a blender.

Impact coffee grinder

Important! All devices are equipped with motor blocking when the lid is open and overheating protection. Many models have added an additional pulse mode, which, by briefly stopping the engine, helps when crushing harder products. For example, when you need to make powder from sugar.

Rotary coffee grinders often set a timer. It is needed to regulate the degree of grinding. The longer the process, the smaller the product yield. In millstone structures this role is played by grinding depth regulator. To do this, increase or decrease the gap between the millstones. Unequal grinding fractions are needed to prepare the drink according to different recipes.

Advice! To brew coffee in a cezve, you need to grind the beans into dust. And to brew espresso, a coarser grind is required.

How to disassemble

It is not difficult to disassemble the device if you know the circuit diagram of the device. The design of all coffee grinders is almost the same, but the assembly differs between brands. And the famous company Bosch has two models with different disassembly methods.

There are easily people who still successfully use Soviet household appliances. Coffee grinders produced in a long-defunct country are not inferior in productivity to their modern counterparts. They will open a list of instructions for proper disassembly of such devices.

Made conscientiously back in Soviet times coffee grinder brand ZMM you have to disassemble it, if not for repairs, then at least for cleaning and maintenance work. The sequence of actions is as follows.

1. Release the knife. To do this, you need to find a slot at the bottom of the case, insert a screwdriver into it and unscrew it counterclockwise.
2. Using a spanner wrench or pliers, unscrew the plastic nut, which is located immediately under the knife, half a turn (left or right).
3. Remove the plastic cup holder along with the glass.
4. Remove the metal washer from the retaining axle.
5. To remove the plate, you need to simultaneously press it together with the lock and turn it counterclockwise until it comes out of the grooves.
6. Bend the retaining spring and release the switch.
7. Remove the dirt washer from the axle.
8. Move the ring at the bottom of the housing and unscrew the screws securing the electrical wire.
9. Remove the engine.

Important! When removing the knife, there is a danger of tearing off the slot. After this, further disassembly will be impossible. To prevent this from happening, you need to first spray it with a can of WD-40 and wait a few seconds. This will make it much easier to unscrew.

Another Soviet model, EKMU 50, has a completely similar sequence diagram for disassembly. modern electric coffee grinder "MIKMA"» EKMU IP-30 from a Moscow manufacturer (a subsidiary version of the Soviet prototype), the algorithm is the same up to the fifth point inclusive. Then you need to do the following:

• Do not remove the bar, but carefully lift it and move it to the side;
• before disconnecting the conductor, you need to slide it out of the button body and move it to the right;
• remove the electric motor;
• remove the oil seal from the motor shaft;
• release the shields from the rubber shock absorbers;
• remove the spring from the groove inside the device to remove the button;
• Unscrew the two screws hidden under the rubber ring on the bottom to disconnect the power cord from the case.

Straume 3 is another coffee grinder made in Riga during Soviet times. But you can see how she understands it in the video:

Bosch

Perhaps the easiest way to disassemble the model of all coffee grinder samples Bosch mkm-6003. The algorithm of actions is as follows: to remove the knife, you just need to unscrew it clockwise, and you can pull out the motor by loosening the power cord and pulling the motor towards you. That's it.

With a model Bosch mkm-6000 One person can't handle it anymore. Need outside help or access to a good vice. First, you need to fix the unit in the hands of an assistant or clamp it in clamps so that it is strictly horizontal. Next, use a screwdriver or a probe to pry up the bottom in the area where the power cord is attached. Then, having driven the first screwdriver to a depth of one centimeter, the second one needs to feel for the latches and carefully separate them. In this case, you should hold the bottom so that the motor, which is pressed against it, does not fall out. The apparent simplicity of the process should not be misleading, since the main difficulty lies precisely in the latches, the separation of which requires great skill and patience.

Coffee grinders from other brands

Basically, all coffee grinders are easy to disassemble. Usually it is enough to unscrew 2-3 screws from the bottom of the case. Sometimes you have to tinker with the latches. But there are also secrets, like a model. Borkj700: to get to the printed circuit board, you need to remove the grind switch knob, which is secured with a washer instead of a nut (it is this that needs to be unscrewed). The original opening is also typical for the coffee grinder Elmaz. The nuance is that you first need to turn the bottom with your palm, and then remove it from the hooks in the body.

Advice! Separately, we can say about the model Vitek 1540. It is not recommended to disassemble it at home. This can only be done by qualified service technicians.

Repair of standard breakdowns

• the device does not turn on;
• knives rotate unevenly;
• motor malfunctions;
• broken power cord;
• other typical simple breakdowns.

When the device shows no signs of life, then first of all you should look for broken contacts and broken wires. If the inspection does not reveal a problem, then the reason lies in the electric motor, which can only be fixed in a workshop, since special knowledge is required.

Important! When the knives are spinning with jamming, then the burnt-out motor winding is clearly to blame. At home, it is simply not possible for a person ignorant of such matters to rewind the winding.

But if the engine is running rough and there is a burning smell, you can try to do without a specialist. Most likely the issue is contamination of the bearings or sliding bushings. To fix the problem, you need to release the shaft and wipe it with alcohol. If there is obvious corrosion, you can treat it with WD-40 or carefully with sandpaper. Brushes may be responsible for interruptions in engine operation. In this case, cleaning or complete replacement is required. You can wipe the entire collector with alcohol if dirt has accumulated on it.

Places of fractures and breaks in the power cord immediately catch the eye. If it is not possible to replace it with a new one, then the wires at the break point should be cleaned, re-soldered and re-insulated. There are also cases when the locking mechanism fails due to contamination of the push mechanism. This issue is easily resolved by disassembling and cleaning the non-working unit.

Advice! Some coffee grinders (notably the Delonghi KG 79) have a weak link in the form of a capacitor on the electrical board. Over time, it swells and needs to be replaced with a new one.

Rules for operating and maintaining coffee grinders

In order for the coffee grinder to work as long as possible, you need to follow simple operating and maintenance rules.

1. Do not leave ground coffee in the device for a long time.
2. After each grind you need to wipe the inner bowl and knives with a damp cloth.
3. The device should not be immersed in water when washing., it is better to limit yourself to wet wiping.
4. Machines with plastic housings may overheat and fail during long continuous operation. Such failures are common in the Moulinex and Saturn brands. If take short breaks in grinding every 20 seconds, you can increase the service life of the coffee grinder.
5. Need to try to avoid chopping other foods. This is what a blender is for.
6. Should promptly change dull knives and millstones. The latter must be replaced after grinding 300 kg of grains, and the former - much more often.

By following simple rules for the care and operation of the device, regularly carrying out preventive maintenance and timely minor repairs, you can extend the life of your favorite coffee grinder, which will delight you with many more years of faithful service.

The most reliable coffee grinders

Coffee grinder Bosch MKM 6000/6003 on Yandex Market

Coffee grinder Kitfort KT-1329 on Yandex Market

Coffee grinder De'Longhi KG 89 on Yandex Market

Coffee grinder Oursson OG2075 on Yandex Market

Coffee grinder De’Longhi KG 520.M on Yandex Market

The expression “The morning begins with coffee” is true for most people on the planet. But not all people drink real coffee, since the instant mixture has little in common with it and not only does not give energy, but, on the contrary, absorbs all the energy. Only flavorings that impart a slightly bitter taste, vaguely reminiscent of real coffee, force us to purchase chemical powder, for some unknown reason called “coffee granules.”

Only real bean coffee can give us the boost of energy we need at the start of the day. Of course, you can’t do without using a coffee grinder. If you don’t want to spend money on buying a new unit, you can make it yourself. Let's find out how to make a coffee grinder with your own hands.

Making a coffee grinder with your own hands

This is interesting: Below we will look at 2 options for assembling a coffee grinder (manual and mechanical) at home. All the necessary parts are easy to find, and the assembly process will take you a few hours at most. But the result will amaze in the most pleasant sense!

Manual coffee grinder

Manual

Look at this cardboard miracle! Looks nice, doesn't it? It turns out that it is not difficult to assemble it at all. You just need to be a little creative and follow our recommendations. First, let's list the things that need to be prepared before starting work. This includes:

• Special thick cardboard for modeling (thickness 4-5 millimeters);
• Fiberboard board or plywood sheet;
• Hot silicone glue;
• Sharp stationery knife;
• A pair of furniture handles;
• Ordinary spatula;
• Several wine corks
• Plastic yogurt cup;
• Lid from a stainless jar;
• Whole coffee beans;
• Acrylic paint in black, gold or copper color.

DIY coffee grinder

Step by step instructions

1. For the stand, a square-shaped piece of plywood is used, size 13.5 by 13.5 cm.
2. Cut four rectangles measuring 13 by 14 centimeters from cardboard.
3. Glue the 3 sides together using hot glue.
4. Measure the size for the shelf. Then glue the cardboard shelf at a height of about 4 cm from the bottom.
5. Glue the fourth rectangle with the pre-cut window for the drawer (it should be cut at a distance of 4 centimeters from the bottom). The base is ready.
6. Cut out the parts for the box, their size is 3 by 12.5 cm, and also 12 by 2.5 cm. Glue them together.
7. The size of the front side of the box is 3.5 by 8 and 10 by 4.5 centimeters.
8. Cut out the pieces for the box lid and glue a furniture handle to the box.
9. For the coffee grinder itself you will need: plastic yogurt boxes, one ice cream stick, one furniture handle, one wine stopper, a lid, as well as a board and a circle with a diameter of 4 centimeters cut out of cardboard.
10. Glue the lid to the box, cardboard and a board on top. Then a furniture handle with an ice cream stick. Finally, a tablet.
11. Glue the cork.
12. Paint the entire coffee grinder with black acrylic and wait for it to dry.
13. Cover the box with white paint. After drying - copper or gold.
14. Glue a few coffee beans for beauty.
15. Perform decoupage using a napkin or print.

The electric motor that will be used to create a coffee grinder

Step by step instructions

1. Select a small, used electric motor. The optimal solution would be a small motor with a power of 300-700 watts. Disassemble this unit, separate the rotor from the stator. Don't touch the last one yet.
2. Using a drilling machine, make holes with a diameter of 9-10 mm at a depth of 7 mm inside the rotor body. They should be at a distance of 10-15 millimeters from each other. Place individual holes longitudinally along the axis of the rotor along inclined lines from top to bottom.
3. We create the working body of the coffee grinder. The holes made at the previous stage are connected by grooves about 5 mm wide and about 4 mm deep. It is most convenient to make grooves using an angle grinder, after first securing the rotor in a bench vice. At the bottom of the rotor, where the ground coffee will come out in the future, form the grooves carefully and carefully, making the depth a little shallower.
4. Use an emery wheel to chamfer the top edge of the rotor. Its height should be 15 mm, and its depth should be about 7-8 mm.
5. Now insert the rotor inside the motor stator. In the lids (bottom and top) of the latter, make small holes with a drill or chisel to pour coffee beans in and then release ground coffee.
6. You will have to make a special loading hopper from sheet metal. Its dimensions will be determined by the size of the electric motor. Secure this hopper close to the top of the grinder.
7. Directly onto the shaft of the engine, which has almost become a hand mill, place a handle on top, which gives the rotor a rotational movement. The design of this handle has no strict limitations, use your imagination. Secure the handle to the rotor using a pin connection or a bolt.
8. The resulting structure must be screwed to a board, inside which a hole must be made through which the ground coffee will come out. Now the board can be installed between a pair of chairs. Under the coffee grinder you need to place a bucket turned upside down, and on top - a small container where the final product will fall.
9. Test the coffee grinder under operating conditions to determine the optimal grinding mode. We recommend grinding the grains by making three to five turns of the handle in a clockwise direction, and then a couple of turns counterclockwise. This will help prevent the internal grooves from clogging.

DIY mechanical coffee grinder

Helpful Hint: Try to clean the rotor regularly. Coffee beans need to be poured into the hopper in small portions, this will prevent clogging of the working part of your coffee grinder.

Video. DIY coffee grinder

Sometimes it is not possible to find a gadget that suits all parameters in a household appliance store. Then the item of small household appliances is manufactured independently. To make a coffee grinder with your own hands, you need skills in working with a soldering iron, a little imagination and the desire to get an original, high-quality device.

Purpose and design of a coffee grinder

Regardless of which coffee grinder you choose for your home - mechanical or electric, it will have one purpose: to grind coffee beans in order to later brew delicious, aromatic coffee. In addition to the main use of the device, people use it for other purposes. For example, to turn cereal into a fine powder, this household appliance is used. Then the coffee grinder must have a reinforced design.

In addition, in this miracle device, people manage to grind spices: black peppercorns, sea salt, cardamom, cinnamon, sesame seeds, flax, dried garlic. The operating principle of the device is as follows:

• coffee beans are loaded into a special hopper installed on top of the structure;
• There are millstones inside the hopper, they grind the coffee beans into the required size fraction;
• There is a hopper installed below to collect the finished powder;
• Depending on the type of device, there are buttons for setting the degree of grinding, as well as a switch, a portion counter and a dispenser lever.

If a large number of grains have been ground at one time, it is recommended to put them in a hermetically sealed bag for further use.

Types of coffee grinders

At the moment, only 3 types of coffee grinders have been invented: manual, rotary and burr. Moreover, the last 2 options relate to electronic devices. A little more about each of them:

1. Manual. Millstones are used for work; they spin and grind coffee by mechanically acting on the handle on top of the product. A hand-made coffee grinder helps you get an aromatic and tasty drink.
2. Rotary. It has a small volume, so it allows several people to prepare beans for a drink. The principle of operation is that there is a motor and a mechanism; it crushes a small amount of grains in a matter of time.
3. Millstone. It is considered a high-quality and most common option. There are millstones located in the container; as they move closer to each other, they determine the size of the grains to be ground.

Based on the above, the conclusion suggests itself that a burr coffee grinder would be the best. In addition, this type of product can be made independently.

What materials can they be made from?

When making a homemade coffee grinder, you need to decide in advance what material the body, internal filling and other parts will be made of. Today the following raw materials are used for the production of devices:

• plastic;
• metal;
• stainless steel;
• titanium coated metal;
• ceramics

The body of the device is often made of durable ABS plastic, as well as metal. The first option will be lightweight, but over time the case may wear out. The metal case is more reliable, however, during operation the weight of the product is felt.

Coffee grinder burrs are made from 3 types of raw materials: ceramic, titanium-coated metal and stainless steel. Ceramic parts do not heat up and are resistant to moisture, but can fail if a foreign object enters. Metal options are durable and reliable; those with titanium coating will last much longer.

Important! The only disadvantage of metal millstones is that they heat up during operation.

If moisture gets on the surface of metal millstones, they can deteriorate, which significantly changes the taste of the finished drink for the worse.

How to make a coffee grinder with your own hands

In order to make your own coffee grinder, you will need a number of tools, including a grinder, a drilling machine, a chisel, sandpaper, a vice, a file, a board for fixing, and wooden blocks. The electric type will also require a motor.

Manual

Initially, you need to prepare all the materials: a sheet of plywood, high-density cardboard, parts for the lid, millstones. When the tools and raw materials are prepared, it’s time to start assembling:

1. First you need to make the body: for this you need to make a drawing and cut out a pattern with all the holes.
2. All 4 sides of the body, as well as the bottom, are glued together. A slot is made on one side of the cardboard - this will be a box for ground coffee.
3. For the coffee grinder itself, stainless steel millstones are used, a small yogurt jar for the body, a popsicle stick, and a wine cork for the handle. A lid holder is made from a furniture handle.
4. When the mechanical coffee grinder is assembled, it needs to be painted, and then testing can begin.

It is necessary to start the test with small grains - this will help keep the device intact, because a manual coffee grinder for the most part serves as a decorative item.

Electrical

For an electrical device, select a motor with a power of at least 300 W - this way the device will work as intended. A hole is drilled in the center of the engine into which grooves are inserted to connect the structure. The rotor is inserted into the engine stator, where holes are made for filling grains.

It is necessary to construct a coffee grinder body from a sheet of tin - it will be fixed on top. The device itself is fixed on the board, a handle is screwed to it, which sets the device in motion.

Key points when constructing a coffee grinder with your own hands

When making a gadget with your own hands, the advice of people who have already proven themselves in engineering when making a coffee grinder will be useful:

• instead of millstones, an emery wheel is used - it is ideal for this purpose;
• do not forget about installing the mesh, it will regulate the degree of grinding;
• if the device has a correctly installed mesh, then the holes and protrusions on the product will coincide;
• For the protection and reliability of the structure, it is recommended to attach 3 loops on the bottom and ceiling of the machine - this can avoid emergency situations.

A self-made coffee grinder will delight you not only with the quick production of raw materials for the drink, but will also give you an unforgettable design experience. If the product is beautifully decorated on the outside, it is quite suitable as a gift to loved ones.

Good day to all, dear friends! In today's article I would like to show you a rather interesting homemade idea. Today we will look at a homemade product that lovers of good coffee will surely like, namely, we will look at how to make a coffee grinder. Many of us don't like instant coffee, and many of us are completely tired of it. And many people at least wanted to drink real aromatic coffee for breakfast, but it all ended in the absence of a coffee grinder. The coffee grinder we will assemble will do its job perfectly. And also one of the features of a homemade product is that it will consist of the most simple and accessible materials that you will probably find in your home or garage. In general, the homemade product is very interesting, so let’s not delay with a long introduction, let’s go!

For this homemade product we will need:
- A sheet of plywood measuring 1*1 m.
- An empty container of large polyurethane foam
- Furniture nails
- Metal plate
- ORG glass (not a big piece)
- 550 class commutator motor (this is often installed in ordinary screwdrivers)
- Adapter for electric motor shaft
- Self-tapping screws
- Metal washers
- Screws and nuts for them
- Switch
- Wires
- Power supply 12V DC.

We will also need the following tools:
- Heat shrink
- Soldering iron
- Solder
- Ruler
- Marker
- Drill and drill bit set
- Hacksaw for metal
- Hammer
- File
- Screwdriver
- Hot-melt adhesive
- A jigsaw or an ordinary manual one.
- Superglue.

Well, let's start assembling our homemade product. To do this, first, on a sheet of plywood you took (the plywood should not be thick), you should mark all the necessary elements using a ruler and marker. You can see all the necessary plywood elements in the image below (we’ll look at what, where and why below). After we have marked all the necessary elements on a sheet of plywood, we cut them out using a jigsaw.