Let's make a reliable DIY lawn mower
Every owner dreams of creating an island of family well-being, a beautiful well-groomed plot, using a minimum of manual labor. A do-it-yourself lawn mower is one of the ways to efficiently use nodes from abandoned mechanisms. The resulting tool not only saves money, but takes into account the characteristics of a particular lawn. Depending on the need, the craftsman can create a tool with manual mowing, electric drive. The use of various types of cutters, wheels, their arrangement leads to unusual solutions. Read about the popular Chainsaw model Calm ms-180 on our website!
Motivation to create a tool from scrap materials
Choosing a method of driving the cutters is the basis for collecting the necessary components. The knives can be set in motion:
- due to manual action, pushing the mechanism forward, which requires great physical strength;
- using electrical energy of single-phase or three-phase current;
- battery motor;
- using an internal combustion engine, two or four stroke.
Having decided on the energy component, you will need to choose wheels, a handle, a platform for collecting a lawn mower with your own hands. Collect the necessary fasteners and components of the connection, protection and connection diagrams.
Principles of using electric motors
The electric motor can be single-phase, 220 V, or three-phase. When connecting the motor, all safety rules for working with electrical appliances must be observed. RCD protection for a single-phase electric motor must be performed, and a powerful three-phase device must have capacitors in the circuit corresponding to the capacity.
For electric lawn mower with your own hands, you can use a powerful low-speed drill with a speed of 1500-3000 rpm. It is necessary to correctly select the ratio of power and swath width so as not to overload the motor. Mounted on a platform, a cordless or corded drill will generate the required torque and the grass will be cut. During work, do not forget to observe the rest intervals to cool the brush motor. Such a tool will help to clean the surrounding area, folds easily and does not require a lot of storage space. The platform on which the engine is installed must be narrow so that the wall platform can be processed. Stability depends on the location of the center of gravity. The lower it is, the less the overturning moment at the platform. How to properly cost a lawn mower with your own hands, watch the video:
When creating a tool yourself, remember that it is a means of increased danger. It is necessary to include a blocking button in the circuit, which is triggered when the knife is jammed or broken. Do not work with electric mowers in wet weather, in the morning dew.
More sophisticated models with a motor with a power of 1.5 to 6 kW are installed on a specially made sole. It is better to use an asynchronous motor, it is less noisy. The undercarriage consists of metal rubberized wheels with a wide tread to make the grass less wrinkled. Bearing units in axle bushings are more reliable than plastic bushings.
You can make the deck and knife using an old frying pan and a tool steel plate. The design, when knives are attached to the mandrel, is more efficient. It is important to observe the proportions and profile of the sharpened edges, using the drawings in the photo of the lawn mower with your own hands.
Correct alignment is of great importance for the performance of the high-speed unit. A slight beating can create strong vibration, destroy joints, create backlash due to the development of seats.
The household always accumulates mechanisms and parts that have served their life. Something can be found in household waste dumps of old things. Unfortunately, such cemeteries surround any residential area. Wheels from a baby carriage are perfect, and a handle from it is also useful. Take an example of a do-it-yourself lawn mower from a Soviet-era washing machine. They were then made of strong metal. The engines from these machines are the best in terms of parameters and power suitable for use in a lawn mower.
The quality steel body will serve as a protective skirt and guide when throwing grass sideways. In addition to the motor, two pulleys and a belt are used to transfer rotation from the motor to the knife drive. The motor is fixed on the platform and connected to one phase.
A similar homemade The mower works in the local area, as it is tied to the mains with a power cord. You can use a special coil wire extension cord, choosing a cross-section corresponding to the engine power. Such a device is produced with a length of at least 40 meters and should provide mobility.
The use of a chainsaw engine in a lawn mower does not require additional protection. It is already made in a dust and moisture protection design. Air filters are less likely to clog.
How to make a DIY mobile lawn mower? Drill-based tools depend on the capacity of the battery and require recharging from the mains. In the absence of electricity, it remains to build a lawn mower based on an internal combustion engine. All small equipment that is fueled with gasoline or a combustible mixture can become a donor for a homemade lawn mowing machine.
Do you have an old Druzhba or Ural chainsaw?
Here is an example of folk ingenuity. The beautiful frame from the corner was thrown out of the warehouse as unnecessary for scrap metal. Special wheel assemblies with 180 revolutions0 on the hinge were found in the same place. Without such a frame, the platform could be welded. The removed working unit is made with an independent drive from the chainsaw by means of a belt drive. The torque is transmitted to the discs, where metal chains 25 cm long serve as the cutting tool. chainsaw DIY has been effectively used for several years. An improved version with a rotary cutter and a two-wheel frame has been made. It works more productively, but is difficult to manufacture.
Each craftsman prides himself on his ingenuity and performance of the instrument. However, it should be understood that the collective mind of designers, designers creates no less functional, but safer tools.
The advantages of homemade tools include:
- saving money on purchasing a tool;
- the ability to use parts that have lost their market value, but are usable;
- thorough knowledge of your instrument and the possibility of its improvement and repair.
The mowing height of the grass is not regulated, and the clearing is not always cut smoothly.The absence of a grass catcher increases the amount of manual labor. A heavy tool with narrow wheels, sometimes, spoils the appearance of the lawn - this is an objective answer why it is better to use a factory-made tool.