How To Remake A Screwdriver For 220
How to convert a cordless screwdriver into a network: 3 main methods Reconstruct a screwdriver on the basis of old, unnecessary parts. The article presents several ways to alter the device that will definitely interest you.
Reconstruction based on laptop power supply
As already mentioned, this method of reconstruction is considered simple and does not require much time. Check first what output voltage the device is designed for. The best option would be 12-19 watts. In the next step, remove the unusable batteries from the device with a screwdriver and disassemble the device.
- Disconnect the entry (sized for a laptop connector) and strip the wires.
- Take the contacts and simply solder them to the device.
- Select a location on the device for the wire and drill it. At the end of the action, fold the structure and check for operability.
The process of converting a screwdriver How to convert a cordless screwdriver to a network: 3 basic methods
It is not surprising that almost every house or apartment has a screwdriver. Unfortunately, devices based on a wireless network source often run out of power and break down. Since it is expensive to buy a new battery, most owners convert their cordless screwdrivers to cordless ones. In this article we will tell you how to remake the device using the parts at hand. We will also touch on the topic of why this type of equipment breaks down most often. Read carefully!
Why convert a cordless screwdriver to a cordless one?
Battery-charged equipment periodically discharges if not used for a long time. This fact is a problem, since the main components deteriorate when the charge in the battery drops frequently. As a result, during the first signs of a breakdown, the battery holds less and less charge. In such a situation, complete breakdown of the part cannot be prevented, it is better to either replace it or change it to a new one. By the way, the cost of the first and second options will be the same.
Advice: If the user is going to work with hard surfaces, select devices with rotation parameters of at least 20 Nm. This is the Sparky BR2 10.8Li-C HD mechanism.
The second reason is to remake the device. Quality of work. Owners of such devices will easily confirm that the torque process is sometimes interrupted. It is also annoying that the power is not the best level. Again, partial discharge is to blame. The situation is saved by connecting the device to the mains supply. Here are the benefits we get in the end:
- The recharging time will be reduced and you can start working at any time.
- Functioning without restrictions, confidence that the device does not sit down halfway to the job done.
- Financial benefit: no need to periodically change the battery.
Advice: High-quality equipment is protected from breakages, which is located near the nozzle. Such protection is available for Bosch PSR 1200, Bosch GSR 12V-15 devices.
Method number 2 (reconstruction based on a network unit from a computer)
For this type of reconstruction, only an AT class network unit is suitable. Such devices have a ventilation compartment, as well as buttons on. And off. The network block is used on many computer models, so it will not be difficult for anyone to find an unnecessary part. Then check the output current, it should be at least 16 volts, and the power 300.30 watts.
- Disassemble the device and find the plate on which the wiring is fixed (board).
- Disable the protection: locate the green electronic component on the board and attach to any other black wire.
- Find a design with two black, yellow and red wires (MOLEX contacts). Attach or solder the extension cord to the yellow and black wires, and attach the other part to the screwdriver terminals. Now twist the mechanism.
Choosing a power supply for a screwdriver
The task can be accomplished in several details. For example, with a laptop charger, this rework is considered simple and unassuming. Therefore, if an unnecessary network block from a laptop is left at home, you can use it. Second detail. Network block from a computer. This option implies a certain amount of knowledge and skills to work with a soldering iron. Another option is how to convert a screwdriver to a network one. Engage the desired inverter welding. In the next section, we will describe in detail how to implement our plans in all three ways.
Advice: Pay attention to the device parameters. For effective drilling, the rpm must be at least 1300. For example, the Bosch GSR 1440-LI and Makita DF347DWE machines have this characteristic.
The procedure is as follows:
- Disassemble the battery: unscrew all the screws hidden under the stickers. The batteries inside are connected to each other. Two wires fit to them: red () and black (-).
- Cut off the wires from the batteries. It is necessary to cut off from the elements, and not from the battery contacts.
- Connect the wire to the open contacts of the charger by soldering, after pretreating the brass terminals with phosphoric acid. This will ensure a reliable connection between the brass and copper cable.
- Insulate the joints.
- Insert a weight into the case where the batteries were located as a counterweight.
- Solder the battery leads inside the case to the free cable contacts, observing the polarity. If polarity is reversed, the instrument will work but rotate in the opposite direction.
- Connect the plug to the mains and check the functionality.
- Additionally, make a hole for the wire in the screwdriver body on the left side. To ensure a snug fit, make a lock with duct tape.
What is needed for rework
In the process of work, you will need:
- Charger included with the cordless screwdriver;
- Electric cable (multicore);
- A worn out battery.
In addition to the above, you must prepare an insulating tape, a screwdriver, a soldering iron, solder and phosphoric acid for soldering.
The benefits of rework
The home craftsman rarely uses fitting and assembly tools. The cordless screwdriver lies idle for a long time. And during this period, an arbitrary discharge occurs in the power supply, which leads to changes in the internal structure.
Having remade a 220 Volt screwdriver, the home craftsman gets the following advantages:
- No time-consuming charging required;
- Storage does not entail violations in the design of the tool;
- Mains supply provides constant torque.
The minus of the converted screwdriver is one: binding to the mains.
How to remake a 220 volt screwdriver correctly
When the batteries fail, you have to think about how to remake a 220-volt screwdriver. Replacing an energy source is sometimes too costly and troublesome. Some types of batteries are almost impossible to find on the market.
- The benefits of rework
- What is needed for rework
- Step-by-step instruction
- Power supply recovery
Power supply recovery
If the power supply is inoperative, external sources are suitable for replacement:
- Power supply unit from a PC or laptop;
- Car charger;
- Homemade power supply.
Alteration of power supplies from any other devices consists in connecting a low-frequency cable to the charging outputs. Reliable and durable operation will be ensured by a power supply with a capacity of 300 350 watts.
Laptop chargers with 12 to 19 Volt output are suitable for instrument resuscitation. In this case, the output plug is removed, the wires are stripped and soldered to the cable of the required length.
A reliable option for long-term work will be a power supply from a computer. Its advantages are the presence of a cooler in the design, which prevents overheating of the transformer.
Converting a 220-volt screwdriver is quite simple. The procedure does not require material costs. The converted tool will last more than one year, provided that the master does everything correctly.
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Converting a screwdriver to mains power: 5 ways
The value of a screwdriver as a home or construction tool, most often, lies in its portability. However, due to certain circumstances, portability sometimes has to be abandoned in favor of functionality. It is about converting a cordless screwdriver into a mains-powered tool. This process has a number of subtleties that it is desirable to observe.
Computer power supply
You can make a screwdriver from the network using an unnecessary power supply from a computer. There are many types of such devices, but almost all of them are suitable for a screwdriver. The required wires can be found by color by looking at the manufacturer’s website.
Required materials and tools
Materials and tools for reworking a screwdriver completely depend on the type of tool and the type of power source, as well as its features. But to summarize, there are several main tools:
- Insulating materials;
- Cable for supplying electricity;
- Soldering iron and soldering materials;
- Any case for the future power supply.
Alteration of the power supply unit made in China
Perfectly for creating a power supply for a 12 volt screwdriver with your own hands, ordinary Chinese power supplies with an output voltage of 24 V and a current of 9 A.
To achieve the goal, you need to replace the original resistor R10 with an adjustable resistor, with which you can achieve the desired voltage. This is done in several stages:
- A constant resistor is removed;
- In its place, a previously prepared adjustable resistor is inserted, on which a resistance of 2300 ohms will be set;
- So far, the voltage is still 24 V;
- Using the resistor settings, you need to achieve the required voltage at the contacts.
After all the manipulations, you need to check that the output voltage is the required value (12 V, 14 V, etc.), and also that the current exceeds 9 A.
We use laptop charging
An excellent option is to use laptop charging. Such devices usually operate with a voltage of 12 to 19 V. This is quite enough to ensure the high-quality operation of the screwdriver. But do not neglect the output current indicators. The closer it is to the required value, the better.
In this case, reworking a screwdriver for mains power is reduced to an elementary soldering of wires from the charger to the board in the tool. It is advisable to isolate everything with electrical tape or other similar materials. After that, the wire is brought out and the tool can be used.
Alteration of purchased blocks
It can also be powered from any other commercial power supplies. The alteration process in this case will be almost the same, however, in addition to the resistor, you may need to solder additional diodes. The most important thing is to achieve the required output parameters. And this can be easily done using a combination of components.
We build in a ready-made power supply
To do this, you need to purchase a ready-made block with suitable characteristics and dimensions. There is enough of this kind of stuff on the radio markets.
Take the body with you and go to the fitting. When the required power supply is purchased, carefully separate it from the case.
We place the screwdriver in the battery box. All components must be securely fastened.
If necessary, extend the wires between the control board and the transformer. If the circuit touches the metal parts of the transformer during operation, a short circuit will occur.
Since the space in the case allows you to separate the board and the transformer for better cooling. Whichever quality power supply you choose, the load will be high, and overheating is possible.
It will not be superfluous to fix additional radiators on the power control microcircuits. Operate the screwdriver for a long time, disconnect it from the mains and touch the radio components on the control board.
You yourself will understand which elements need heat dissipation. Holes for air circulation can be made in the housing.
Redesigning the power supply unit with your own hands will not take much time, and the cost of the purchased module is incomparable with restoring the battery’s performance.
External power supply
The idea is not as absurd as it might seem. Even a large and heavy buck rectifier can just stand near the outlet.
You are equally tied to the power supply, and to the stuck mains plug. And the low-voltage cord can be made of any length.
IMPORTANT! Ohm’s law says at the same power, by decreasing the voltage, we increase the current strength! Accordingly, the 12-19 volt supply cord should have a larger cross section than 220 volts.
Battery case power supply
Mobility remains, you are limited only by the length of the network cable. The only problem is how to squeeze a sufficiently powerful transformer into a small case.
We recall Ohm’s law again, and understand that a powerful 220 volt electric motor can be compact.
AC adapter for screwdriver in battery housing
If your instrument is not too powerful, you can place the power supply in a handle or case from damaged batteries.
- Needs regular recharging. Sooner or later, batteries will use up their cycle life.
- The cheaper the tool, the faster the rework time will come.
There is nothing wrong with that, but you should be aware that the manufacturer saves as much as you do. Consequently, the most expensive unit (namely the battery) will be the cheapest when bundled.
As a result, we get an excellent tool with a serviceable motor and not a worn gearbox, which does not work due to a poor-quality battery.
There is an option to purchase a new set of batteries, or replace faulty batteries in the unit. However, this is a budget event. The cost is comparable to buying a new screwdriver.
The second option is to use a spare or old battery from the car (if you have one). But the starter battery is heavy, and using such a tandem is not very comfortable.
Making a homemade power supply
If you are familiar with the principles of building electrical circuits, you can make your own power supply. Diagram giving general concepts in the illustration.
The transformer can be picked up from an old tube TV, or other household appliances. Power 220 volts 250-350W. The main thing is that the donor power supply should not be pulsed.
The voltage on the secondary winding is 24-30 volts. The secondary winding is made of a wire of the corresponding section.
However, if the output winding current is at least 15 amperes (see transformer specification) there is nothing to worry about.
After the losses on the diode bridge (1-1.5 V on the diode), you will get the required output value.
If you have an electrical engineering education, make the calculation yourself. Or in a practical way: by connecting a 220 volt 100W incandescent lamp as a load, measure the output voltage. E
If it exceeds the needs of the screwdriver, reduce the number of turns of the secondary winding of the transformer.