How to make a mini machine from a motor with his own hands
Greetings to all readers and guests of the channel.
In this article I will talk about my homemade machine, which I made from parquet and the motor from a tape recorder. This machine was a complete example, on which I could already handle workpieces up to 4 cm in diameter, my previous machines were not able to do this because of the weak motor.
I found an old tape recorder and took the motor out of there, it was just on the bearing and had a lot of size compared to my last ones.
This motor is perfect for my application.
As a frame I used solid oak board.
On the frame itself I put parquet slides, in which the tailstock would move. The parquet is also oak.
I also made the tailstock from a piece of parquet.
To prevent it from moving during the operation of the machine, I glued a strip with a thread on the back of it, and screwed a wing nut on top, which will not let freely move this unit.
I fixed a dowel on the tailstock with the ability to fix the workpiece, all clamped by the aluminum plate.
Centered the motor shaft with the center of the tailstock and proceeded to fabricate a workholding for the workpiece in the tailstock.
From a small pulley, two pieces of bicycle spokes I made a workpiece mount in the machine. Everything fit on the shaft.
Also I made the undercarriage, which can be seen in the photo above, made it from an ordinary match and fastened it to two self-tapping screws in the bed.
The lathe is completely made, I connected it to the power adapter from a PC, because the motor is 12 volt.
On this machine from the same parquet I made a fountain pen which I used all the time when I was in uni.
Also I have a couple of motors, but I do not know what to do with them.
Write in the Комментарии и мнения владельцев what you can do with them.
If you liked my idea of a machine with a tape recorder motor andSubscribe to the channel. for meit is the best motivation to write more and better. My article on the site samodelkin about this machine here.
Thank you all for finishing reading, everyone have a positive mood and a great time.
The first option. Using a drill
The first option has a more conventional solution. Suppose you need to make a small grinding wheel, yakiy will be installed in a drill or an electric screwdriver. For this we can take a broken disc. On it with a caliper draw a circle with the required dimensions. Later on, using the circle we drew, we cut out the future small disc. In its center drill a hole in which we insert a bolt with a cross section of 6 mm. From the bottom Put a washer and tighten the nut.
The bolt will be the axis of rotation of the disk. We put it in the chuck of a drill or electric screwdriver and clamp. With this tool it is possible to cut materials in inaccessible places or with small dimensions. You can grind finished parts.
It is not difficult to make a small cutter for cutting small parts from plastic or wood. For this we take an ordinary tin bottle cap from a glass bottle. In the center of it we make a hole to install the axle. The axis can be the same bolt with a cross section of 6 mm. The edges of the cap align and cut out the teeth. It is better to make the smallest markings.
Such a cutter, loaded into a drill or an electric screwdriver, can simply cut small wood slats, for example, for modeling. Plastics also lend themselves to this uncomplicated tool.
Mini angle grinder with their own hands
The need for a miniature tool exists where a person is engaged in the manufacture of souvenirs, model ships and aircraft, small technical units and parts.
There are two variants of miniaturisation. The first version involves only making miniature tools like discs, milling cutters, etc.д. The second option involves exactly making a grinding tool on the basis of miniature electric motors.
The first option. Using a drill
The first option has a simpler solution. Suppose you need to make a miniature grinding wheel, which will be installed in a drill or an electric screwdriver. We can use a broken disc for this.
Using a caliper, draw a circle on it with the required dimensions. Then we cut the future miniature disk in a drawn circle. Drill a hole in its center, and insert a bolt with a diameter of 6 mm.
Put a washer on the bottom and tighten with a nut.
The bolt will be the axis of rotation of the disk. We insert it into a chuck of a drill or an electric screwdriver and clamp. With this tool we can cut materials in hard-to-reach places or with small dimensions. You can grind the finished parts.
It is not difficult to make a miniature cutter for cutting small plastic or wooden parts. To do this we take an ordinary tin cap from a glass bottle. In the center of it we make a hole to install the axis. The shaft can be the same bolt with a diameter of 6 mm. The edges of the plug align and cut out the teeth. It is desirable to make a minimum layout.
Such a cutter, loaded into a drill or an electric screwdriver, can easily cut small wooden strips, for example, for modeling. Plastics also lend themselves to this simple tool.
The second option. Self-Assembly (2 videos)
If the task is to make a miniature tool with their own hands, you must first pick up the electric drive. As the electric drive is suitable motor from a variety of devices. printer, an old cassette recorder, or from an ordinary child’s electrified toy.
Depending on the power of the electric motor, you can build a mini angle grinder in two directions. The first direction is the use of mains power supply. For example, from an old cell phone. The second direction provides a fully autonomous model of the motor, which will be powered by batteries or batteries.
The difference between the two directions in the design of the housing. In the first case, you only need space for the motor, and in the second case, you will need to install a battery compartment.
For the housing it is very convenient to use a piece of PVC pipe. If its diameter is slightly larger than that of the electric motor, you can wrap electrical tape around the motor. You can attach the motor with a glue gun.
You can use the plugs that are put on PVC pipes during transport and storage as stopping plugs. A hole should be made in the front plug for the motor shaft, and in the back plug for the power wire. On the body you need to fix the power connection plug and the switch.
The ideal is to be able to mount some kind of collet clamp on the shaft. This allows the use of standard drill bits, drills and non-standard mini cutters and disks. If you can not install a collet clamp, you can connect the shaft and the cutting tool with a double contact from an electric pad.
In a similar way you can make a case and for a mini angle grinder with autonomous power supply. Only after the motor is installed in it, it is necessary to install the battery pack. Wires from batteries will be connected through a switch installed on the body.
In both cases, you can use both homemade tools and standard industrial tools. burs and drills on mini grinders.
How to make a mini angle grinder with their own hands from improvised means
Such a device as a small angle grinder is needed when the engraver deals with small parts, for example, in the production of souvenirs. And yet, how to make a mini angle grinder with their own hands? To do this, there are two options.
The first option. using a drill
This option is simple enough. For example, you need to build a small circle for grinding, which will later be installed in a drill. Take an old or broken disk and mark an even circle on it using a caliper. Cut out the shape that is formed. Drill a hole in the center and insert a 6mm diameter bolt. Put a washer on the bottom and secure everything with a nut.
The bolt that we put in the center of the circle will be the axis of rotation of the entire disk. The bolt is attached to the socket of the drill and tightly clamped. It’s done, now go ahead and grind your parts.
It is not difficult to make a cutter to cut small pieces. Take a metal plug, it can be found on a glass bottle, and make a hole exactly in the middle. You can use the same bolt with a diameter of 6 mm as the axis. Unfold the edges of the cork and cut off the uneven teeth. It is better to make a marking.
A cutter like this will work well if you load it into a drill. The device will easily cut small wooden or plastic parts.
The second option is a complete assembly with your own hands
So how to make a mini angle grinder yourself from start to finish? If there is such a difficult task, then first you need to determine what will serve as the electric drive for the device. Power can come from a small motor from various devices. such as an electric toy.
Depending on what power you need a mini angle grinder, its manufacture can go in two directions. The first option will use the mains power supply, but in the second case. the device will be completely self-contained through the use of batteries or a small battery.
Such devices will have a different appearance. Stand-alone device requires an additional compartment for batteries.
It’s easy to use a tube of PVC as the body of a mini angle grinder. In the case where the tube is larger in diameter than the motor, you can wrap duct tape around it and attach it to the body, using a glue gun.
You can use regular plugs as stoppers, which are put on the same PVC pipe. In the front cap a through hole is made for the shaft, and in the back. for the wire. On the case you need to install the power connector. the switch button.
Machine for cutting circles out of metal
Usually on the basis of the angle grinder make cutting machines. There are at least a dime a dozen of such crafts on the Internet. On our site also a lot of ideas on the subject, and we will not repeat them.
And here is a machine for cutting circles from sheet metal. this is a really cool idea.
With the homemade device you can cut circles of different diameters. Quick and easy. In general, self-made machine is definitely worth your attention.
Machine for cutting circles out of metal
Angular grinder is a common base for making circular cut-off machines. Such self-made on the Internet at least a dime a pond. On our site, too, many ideas on the subject, and we will not repeat.
But a machine for cutting circles out of sheet metal is a really cool idea.
With the self-made device you can cut circles of different diameter. Quick and easy. In general, the home-built device is definitely worth your attention.
Full analogue of the factory “dremel
The first thing you need to construct a mini drill is a miniature 5 to 12 volt electric motor. You can find them in children’s toys and decorative toys, old cassette players, printers, or portable fans. In many stores they are sold in the electronics and modeling section, including online stores.
Example of a drill
The original case is also made by yourself with the expectation that the motor is tightly fixed inside, while leaving a gap or open part in the place of heating.
The body of a mini drill can be any plastic tube.
There are some models, in which a tube from sealant, syringe, plastic tube from toothpaste or candy for kids was used.
Will also file to the right length of a piece of sanitary plastic pipe, but in this case, the open ends will need to plug any movable “cork”, such as acrylic or cut out of plastic.
The chuck or clamp of the mini drill can be made yourself, for example, from an ordinary connection terminal, or bought at the market or in a store. For collets, you can go to engraving workshops, as well as in the modeling department or the accessories section of household power tools.
The resulting tool is a universal option; depending on the type of repair, different attachments are fixed with such a clamping chuck: drills, cutters, discs with a cutting edge or screwdriver heads.
Assembling
All the removed and disassembled assemblies of the drill should be placed in their regular places. This should be aided by photographs that you will review in reverse order of disassembly.
In the final step, check that all the mechanisms are finally fastened. Pay attention to:
The removed cover is then laid in its place, taking into account the mechanical locks, and secured with the retaining screws.
The drill is assembled, but you can not immediately put it under load: Be sure to check the quality of the assembly.
Power and controls
It is good if you have a power supply with a regulator of input power. it allows you to change the speed of the drill while working. If you use a regular power supply, it is recommended to install a power button on the housing for added convenience. You can use either a two-position switch or a breaker button, depending on your preference. It is also a good idea to equip the housing with a socket that fits the power supply.
Enthusiasts who are “up to speed” with electronics can use the USB port, which can be used to power the mini drill from a computer or laptop.
Attachments for the mini drill
Regular drill bits may not be enough if you are not a radio amateur, but rather a modelmaker or other craftsman who uses a mini drill or drill press. Some attachments are not difficult to make yourself:
- The cutter. You can use a spinning reel from a lighter. Slide it onto a bolt of suitable size and secure it with a nut.
- Grinding head. A small nail will do. Put a champagne cork or wrap a cylinder of electrical tape around it. Cut a rectangle out of sandpaper of the desired grit size and stick it around the circumference of the head cylinder. You will need several of these heads to work on different materials.
- Circular saw. The top or bottom of a C-cell battery. the so called “barrel”. is good for making it. The battery material is strong enough to make a circular saw blade. Use a compass to mark out a hole in the center. The beveled teeth need to be of equal size to prevent beating while working. To fix it in the drill chuck, use a bolt and fasten the disk to it with the nuts. As you can see, the mini drill with his own hands from the motor is not difficult to make, if you are enthusiastic. Suitable many improvised materials that you often throw away. The only thing that you will have to spend money on is the collet: to make it yourself is extremely difficult.
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Instructions:
For a start we take a motor. A similar motor can be pulled from any broken electric toy, printer (not a stepper) or tape recorder. The motor should be high-speed and powered by DC current, simply put, to work from normal “finger” batteries.
Take two wires, stripped the ends and as in the figure to put through the hole terminal, and twist.
Now the twisted wires need to be soldered, for reliable contact.
Insert our motor with soldered wires into the syringe, but not all the way through. The motor should fit tightly into the syringe.
Using a hot glue gun, apply glue all around the circumference.
Take the switch. You can buy it at any store that sells radio parts or order it online.
Cut a rectangular hole in the syringe to fit our switch. Pull the wire that we solder to the switch.
Slide the switch into its seating position. Using a glue gun, glue the perimeter of the switch.
Make the hole indicated by the red arrow. This can be done with a soldering iron. Insert into the hole 2 wires, the red one coming from the second terminal of the switch and the yellow one coming from the motor.
Take the battery compartment and regular AA batteries or rechargeable batteries. You can buy a box like this or take it out of a toy like the motor.
Apply hot glue in two strips to the back ribs of the syringe.
Before you connect the wires, put on a heat shrink, indicated by the green arrows and the numbers 3. Under the number 1 is the wire coming from the second terminal of the switch, connect it to the “plus” coming out of the battery box. The yellow wire which goes from the motor is shown under number 2. Connect it to the “minus” wire, which goes out of the box. Pull the heat shrink on the joints of the wires and use a lighter, matches or a construction dryer to heat the heat shrink tube, which will tightly crimp our contacts.
We take a terminal block. You can buy it at any electrical goods store. We put this block on 1 screw on the motor axis, do not touch the second screw, it will clamp the drill. Firmly tighten the first screw.
Take the drill bit, the diameter of the drill bit must not exceed the inner diameter of the shoe. Insert the drill into the socket as far as it will go and tighten the second screw.
Insert 4 batteries, observing the polarity and pushing the switch. the drill should work! Mini drill ready!
How to make a mini drill with his own hands
Everyone can make a mini drill, the main thing is a few parts that you can find at home or in the garage.
For a mini drill, we will need:
- Motor;
- 50 ml syringe;
- Wires;
- Glue gun;
- Soldering iron;
- A hacksaw;
- The box for 4 batteries (Battery compartment);
- Four AA batteries;
- 1 terminal block.
Instructions:
First we take the motor. You can get a motor like this from any broken electrical toy, printer (not a step motor) or tape recorder. The motor must be high-speed and DC-powered, to put it simply, to work from regular “finger” batteries.
Take 2 wires, stripped the ends, and as in the figure pierce the hole terminals, and twist.
Now the twisted wires need to be soldered, for a good contact.
We insert our motor with soldered wires inside the syringe, but not all the way. The motor must fit tightly into the syringe.
Using a hot glue gun, apply glue in a circle.
Take the switch. You can buy it at any store that sells radio parts or you can order it online.
Cut a rectangular hole in the syringe to fit our switch. Pull through the wire which we solder to the switch.
Shrink the switch into its seat. Use a glue gun to glue the switch around the perimeter.
Make a hole where the red arrow is pointing. This can be done with a soldering iron. Through this hole we insert two wires, the red one coming from the second terminal of the switch and the yellow one coming from the motor.
Take the battery compartment and regular AA batteries or rechargeable batteries. Such a box can be bought or taken from a toy, as well as a motor.
Apply hot glue in two strips to the back ribs of the syringe.
Before you connect the wires, put the heat shrink on the wires, indicated by the green arrows and the numbers 3. Number 1 shows the wire from the second terminal of the switch, connect it to the “plus” coming out of the battery box. Shown below number 2 is the yellow wire which goes from the engine, connect it to the “minus” coming out of the box. Pull the heat shrinking tube over the junction point of the wires and use a lighter, matches or a construction dryer to heat it, which will tightly crimp our terminals.
Take the terminal block. You can buy one at any hardware store. This block on 1 screw we put on an axis of the motor, the second screw will not touch, it will clamp the drill. Firmly tighten the first screw.
Take the drill bit, the diameter of the bit must not exceed the inner diameter of the block. Insert the drill bit into the socket as far as it will go and tighten the second screw.
Insert 4 batteries, respecting the polarity and press the switch. the drill should work! The mini drill is ready!
How to make a chuck for a mini drill
For the homemade chuck you will need a piece of metal or textolite tube of the same diameter as the shaft of the motor. The length of the homemade sleeve should be at least twice the length of the shaft and allow you to firmly fix the drill bit.
You can fix the sleeve with screws or hot melt glue. As a rule, the motor shaft has a diameter of 2-5 mm, and drills for making boards have a smaller diameter. So you need to fill the resulting space with filler and achieve alignment of the drill and the shaft.
Take rosin as filler and pour it into the hole of the sleeve. Use the soldering iron to melt the rosin and insert the drill bit. The rosin will harden and hold it securely.
To get the perfect alignment, melt the rosin again and turn on the power. While the rosin is still wet, try and reposition the drill bit with tweezers. If necessary, repeat the operation one more time.
The second variant. Assembling by ourselves (2)
If the task is set. make your own hands a small tool, then you must first select the electric drive. As the electric motor is suitable motor from various devices. printer, an old cassette recorder or from an ordinary electrified children’s toy.
Depending on the capacity of the motor can build a mini angle grinder in two directions. 1-st direction. is the introduction of mains power supply. For example, this is an old cell phone. The second direction envisages a completely self-contained model of the motor, Yakiy will be powered by batteries or batteries.
The difference between the 2 directions in the design of the housing. In the first case, the place will be needed only for the motor, and the 2-nd will need to install the battery compartment.
It is very convenient to use a piece of PVC pipe for the housing. If its cross-sectional dimension is somewhat greater than that of the electric motor, you can wrap electrical tape around the slider. The motor can be attached using a glue gun.
As plugs can be used as plugs to be put on PVC pipe for transportation and storage. In the front cap you need to make a hole under the motor shaft, and in the back under the power wire. On the housing, you need to attach the power connector and the switch.
A flawless option would be to attach a collet clamp to the shaft. This allows the use of standard drill bits, drills and unusual mini-cutters and disks. If you can NOT install the collet clamp, you can connect the shaft and the cutting tool with a double contact from the electronic block.
Similarly, you can make a case for a mini angle grinder with self-contained power supply. Only after the motor has been installed you can install the battery pack as well. Wires from the batteries will be connected through a switch installed on the body.
In both cases, the mini grinders can use and homemade tool and standard industrial. burs and drills.
Drilling machine with asynchronous motor
If there is no drill in the household or it is not desirable to use it in the machine, you can perform a design based on an asynchronous motor, for example, from an old washing machine. The scheme and the process of making such a machine is quite complicated, so it is better to make it a master with sufficient experience in turning and milling work, assembly of electrical circuits.
Design of a drilling machine with a motor from household appliances
To get acquainted with the design we give assembly drawings and details, as well as the characteristics of the assembly units in the specifications.
The parts and materials for making the machine are shown in the table:
1StaninaTextolite plate, 300×175 mm, δ 16 mm 2Footplate Steel circle, Ø 80 mmCan be welded3Main column Steel circle, Ø 28 mm, L = 430 mmOne end is turned to length 20 mm and there is a thread M124SpringL = 100-120 mm 5Hub Steel circle, Ø 45 mm 6Joint screwM6 with plastic head 7R16x2, L=200 mmFrom the clamp8Matrix nutTr16x2 9Drive arm Steel plate, 10Camel drive bracketDuralumin sheet, δ 10 mm 11Special nutM12 12Camel drive wheel 13Washers 14Four-strand drive pulley unit in V-belt driveDuralumin circle, Ø 69 mmChanging the spindle RPM is done by shifting the drive belt from one arm to the other15Electric motor 16Capacitor unit 17Locked pulleysDuraluminium circle, 18L x 98 mm 18Spring stop screw M5 with plastic fungus 19Spindle return springL=86, 8 coils, Ø25, made from Ø1.2 wire 20Slit clampCutting collarCrank, 76 mm Ø21Spindle head, see “Technical data”. below22Spindle head bracketDuralumin sheet, δ 10 mm 23Drive beltProfile 0V belt with “zero” profile, Therefore, the same profile is used for the knobs of the pulley block24Switch 25Power cord with plug 26Tool feed leverSheet steel, δ 4 mm 27Removable lever handleSteel tube, Ø 12 mm 28Chuck tool chuck 29VinM6 screw with washer