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How to Calibrate a Straight Edge Tool?

  Introduction Calibrating a straight edge tool is essential for maintaining accuracy in various applications, from woodworking to metalworking. A properly calibrated straight edge ensures that your measurements and cuts are precise, leading to high-quality results in your projects. This guide will walk you through the steps and methods to calibrate your straight edge tool effectively. Understanding Straight Edge Tools Types of Straight Edge Tools   Straight edge tools come in various types, each designed for specific applications. The most common types include: Precision Straight Edges : Used in engineering and metalworking for high-accuracy applications. Machinist's Straight Edges : Typically made of hardened steel, used in machining. Woodworking Straight Edges : Often made from aluminum or steel, used to check the flatness of surfaces in woodworking projects. Uses of Straight Edge Tools   Straight edges are used to: Check the flatness of surfaces. Align parts during assembly. E

What should I look for when buying an electric lawn mower? [2024]



In today's environmentally conscious world, choosing the right lawn mower goes beyond mere functionality—it involves making an informed decision that aligns with sustainability goals and personal convenience. This guide explores the essential factors to consider when purchasing an electric lawn mower, whether corded, cordless, or robotic.

Types of Electric Lawn Mowers

Corded Electric Lawn Mowers

Corded electric mowers are powered directly from an electrical outlet, providing consistent power without the need for recharging. They are ideal for smaller yards where a power cord can reach every corner without hassle.


  • Continuous power supply.
  • Typically lighter and more affordable than battery-powered options.
  • Low maintenance compared to gas mowers.


  • Limited range due to the cord length.
  • Potential hazards of mowing over the cord.

Best Applications:

  • Small to medium-sized yards with accessible outdoor outlets.

Cordless Battery-Powered Lawn Mowers

Battery-powered mowers offer freedom of movement without the restriction of a cord. They are suitable for larger yards and provide more flexibility in maneuvering around obstacles.


  • No cord limitations.
  • Quieter operation compared to gas mowers.
  • Environmentally friendly with zero emissions.


  • Limited runtime per charge.
  • Battery replacement costs over time.
  • Initial investment may be higher than corded models.

Suitable Uses:

  • Medium to large yards with varying terrain.

Robotic Electric Lawn Mowers

Robotic mowers are autonomous machines that operate without human intervention. They navigate through programmed boundaries and return to charging stations as needed, making them convenient for busy homeowners.

How They Work:

  • GPS or boundary wire-guided navigation.
  • Scheduled mowing sessions.
  • Automatic return to charging base.

Benefits and Limitations:

  • Continuous maintenance with minimal human effort.
  • Initial setup and programming required.
  • Higher upfront cost but saves time in the long run.

Factors to Consider Before Buying

Lawn Size and Terrain

The size of your lawn and its terrain play a crucial role in selecting the right mower. Smaller, flat lawns may suit corded mowers, while larger or hilly landscapes may require the mobility of a cordless or robotic model.

Cutting Width and Height Adjustment

The cutting width determines how much grass is cut in each pass, impacting efficiency. Adjustable cutting heights offer versatility for different grass types and seasons.

Battery Life and Charging Time

For battery-powered mowers, consider the battery's runtime per charge and the time required for a full recharge. Lithium-ion batteries are preferred for their longevity and quick charging capabilities.

Maneuverability and Ease of Use

Ergonomic design features such as adjustable handles and lightweight construction enhance maneuverability. Consider the mower's weight, especially if you need to lift or maneuver it frequently.

Grass Disposal Options

Choose between bagging, mulching, or side discharge based on your lawn care preferences and environmental considerations. Mulching mowers recycle clippings into nutrients for the soil.

Noise Levels

Electric mowers are quieter than gas counterparts, but noise levels can vary. Look for models labeled with noise reduction features if noise pollution is a concern in your neighborhood.

Durability and Build Quality

Check the materials used in construction and read reviews regarding durability and reliability. A sturdy build ensures longevity and reduces the need for frequent repairs.

Safety Features

Prioritize mowers with safety features like automatic shut-off when not in use and blade brakes that stop rotation immediately upon release of the handle.

Brand Reputation and Reviews

Before buying lawn mower research reputable brands known for quality products and customer service. Read user reviews to gauge reliability, performance, and after-sales support.

Maintenance and Care Tips

Cleaning and Storage

Regularly clean the mower to prevent grass buildup and store it in a dry, protected area to extend its lifespan.

Blade Sharpening and Replacement

Sharp blades ensure a clean cut and reduce stress on the motor. Follow manufacturer recommendations for sharpening or replacing blades.

Battery Maintenance

Store batteries in a cool, dry place and avoid overcharging to prolong their lifespan. Follow specific maintenance guidelines provided by the manufacturer.

Cost Considerations

Initial Purchase Cost

Compare prices among different models and consider additional features that may justify a higher upfront investment.

Operating Costs

Calculate long-term operating costs, including electricity usage and potential battery replacement costs over time.

Environmental Impact

Eco-Friendly Benefits

Electric mowers produce no emissions during operation, contributing to cleaner air quality and reducing carbon footprints compared to gas mowers.

Sustainability Features

Some models incorporate eco-friendly design elements such as recyclable materials and energy-efficient components.

Choosing Accessories

Necessary Accessories

Invest in essential accessories like spare batteries, protective covers, and replacement blades to enhance mower performance and longevity.

Performance and Efficiency

Compare the performance metrics of electric mowers with gas counterparts, including power output, noise levels, and maintenance requirements.

FAQs about Electric Lawn Mowers

Q. What are the advantages of using an electric mower over a gas-powered mower?

A. Electric mowers are quieter, produce no emissions during operation, require less maintenance, and are generally easier to start and operate compared to gas-powered mowers.

Q. How do I know if a cordless electric mower is suitable for my yard?

A. Consider the size of your yard and the terrain. Cordless mowers are ideal for medium to large yards with relatively flat terrain. Evaluate battery runtime and charging time to ensure it meets your mowing needs.

Q. Are electric mowers more expensive to maintain than gas mowers?

A. Generally, electric mowers have lower maintenance costs compared to gas mowers. They require less frequent servicing, no oil changes, and fewer parts replacements over time. However, battery replacement costs may be a consideration for cordless models.

Q. Can electric mowers handle thick or wet grass?

A. Electric mowers can handle thick grass, but the cutting efficiency may vary depending on the mower's power and blade sharpness. It's recommended to avoid mowing wet grass to prevent clumping and potential mower damage.

Q. How long does it take to charge the battery of a cordless electric mower?

A. Charging times vary depending on the mower and battery capacity. On average, it takes around 1 to 2 hours to fully charge a cordless mower battery. Lithium-ion batteries commonly used in electric mowers offer quick charging capabilities.


Choosing an electric lawn mower involves assessing your lawn's size, terrain, and personal preferences to find the best fit. Consider factors like cutting efficiency, battery life, and environmental impact to make an informed decision that aligns with your needs and values.


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