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Laser application | Monport k40丨Easy Glass Engraving

Immerse yourself in the fascinating world of glass engraving with the Monport k40 laser machine, presented by Greg from the Laser Channel. The video offers a detailed demonstration on how to intricately carve designs onto glass surfaces using two distinct methods. The first technique utilizes tap water and tissue paper, while the second employs dish soap and tissue paper. Prior to the engraving process, it’s imperative to prepare the glass by removing it from a picture frame and cleaning it immaculately with denatured alcohol.

The tissue paper serves as a crucial element in the engraving process, acting as a masking agent held in place with either tap water or dish soap, depending on the chosen method. With a flat sheet of glass, Greg advises the use of the water and tissue paper approach, whereas for working with a curved surface or a rotary, the dish soap method proves more effective. The dish soap maintains its moisture, preventing the tissue paper from drying and detaching from the glass. After applying the selected masking agent, the saturated glass is placed inside the laser machine for the engraving operation to commence.

Laser application | Monport k40丨Easy Glass Engraving

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Understanding the Monport K40 Laser Machine

As an enthusiast in the world of glass engraving, the Monport K40 Laser machine is not alien to you. This machine, which allows for a variety of engravings on different materials, has become particularly popular in the glass engraving industry due to its efficiency and versatility. But before you commence your exciting journey in the feat of glass engraving with the Monport K40 Laser machine, it is essential to understand its initial setup and the critical safety measures you need to take.

Initial setup of the machine

The first step involves setting up the Monport K40 Laser machine. Ensure that the machine is unpacked correctly and carefully to check for any damaged parts or pieces that may have dislodged during transportation. Once the physical inspection is complete, you can install the software provided with the machine into your computer. Follow the software prompts and select the appropriate settings. Fine-tune alignment and ensure that the laser head moves freely.

Safety measures when using the machine

Safety first: this adage cannot be overemphasized. When operating the Monport K40 Laser machine, it’s essential to wear safety glasses designed to protect your eyes from laser exposure. Always keep the area well-ventilated as engraving glass might release tiny glass particles into the air. Moreover, don’t leave the laser operating unattended – this allows for immediate response in case of an emergency.

Preparation process for Glass Engraving

With the machine ready to go, let’s dive into the fundamental procedures of glass engraving.

Removing glass from the frame

Start by exercising care while removing the glass from any frame or casing. Deliberate and gentle handling is necessary to avoid undesired nicks or breakage. If the glass sticks around the edges due to adhesive substances, consider using a blade scraper, taking care not to scratch or damage the glass.

Cleaning the glass with denatured alcohol

Once the glass is free of its frame, it’s time to clean it. Apply denatured alcohol to remove any dust particles, smudges, or fingerprints. This step ensures that the engraving process is devoid of hindrances that can interfere with the quality of your work.

Cutting and applying the tissue paper

Your next step is to prepare a piece of tissue paper that matches the size of your glass. This tissue paper acts as a masking agent during the engraving. Apply the tissue to the glass using a mild solution of dish soap and water or denatured alcohol.

Choice of Masking Agent

Masking agents are significant in glass engraving as they help the laser to interact effectively with the glass surface. Here are two common masking agent methods:

Tap water and tissue paper method

This method employs both tap water and tissue paper as a masking agent. Once you’ve cut your tissue paper to size, submerge it in tap water until thoroughly soaked; then apply to the glass surface.

Dish soap and tissue paper method

Much like the first method, the dish soap and tissue paper approach requires you to cut your tissue paper to size. Instead of using tap water, you add a few drops of dish soap to create a mild solution. Dip the tissue paper in this solution and apply it to the glass.

Choosing a method based on the type of surface

Select your preferred method based on the type of glass surface you are using. For example, the dish soap and water method can be beneficial for oily or greasy glasses, as dish soap is excellent for degreasing.

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Placing the Glass inside the Laser Machine

Proper placement strategies

Correct placement of your glass inside the machine is crucial for the success of your glass engraving. Ensure that the glass is level, balanced, and secure. Some machines offer a honeycomb bed to assist with this.

Ensuring safety while placing glass

Again, safety being paramount, handle the glass with care to prevent breakage or cuts. Wear safety gloves if possible; otherwise, handle the glass delicetly by the edges.

Setting the Engraving Parameters

Setting speed and power

With the glass in place, it’s time to set your engraving parameters. Adjust the settings for speed and power based on the type and thickness of your glass and the desired depth of engraving. It is advisable to conduct a few test runs on small glass pieces to refine your settings.

Understanding the functions of each parameter

Remember, the speed at which the laser moves across your piece and the power it operates will directly impact the quality of your engraving result. Higher speeds can lead to shallower engravings while lower speeds with high power may result in deeper etching but may be more prone to cracking the glass.

The Glass Engraving Process with Monport K40

The engraving procedure

With all preparation complete, you can now commence the actual engraving. Initiate the operation on your machine and stay observant to ensure the system runs smoothly.

Dealing with heat and potential cracking

Glass engraving generates heat which if not controlled can cause the glass to crack. This is why the tissue paper masking method can beneficial as it cools the glass. Likewise, keep an eye on the heat generation and stop the process momentarily to let the glass cool if the heat generation becomes excessive.

Keeping laser head moving for efficiency

To achieve a crisp and clear engraving, the laser head must move at a constant speed. Gradual movement, pauses, or hitches could lead to unequal engraving depths and blurred graphics.

Post-Engraving Procedures

Checking the engraved surface

Once the engraving process concludes, let the glass cool down before you inspect the outcome carefully, look for consistency, depth, and clarity of the engraving.

Removing shattered glass shards

Use a soft brush or air blower to remove any shards or residues from the glass left by the engraving process. Be careful to avoid getting cut by any sharp slivers.

Smoothening the engraved surface with sandpaper

The engraved surface might be rough after the process. You can smooth the engraved areas with sandpaper gently to achieve a neat finish.

Preventing Engraving Issues

Identifying issues like peeling

Identify potential problems such as peeling or cracking, which might be due to high power levels or slow speed. Take corrective action before causing permanent damage to your work.

Solutions such as speeding up or reducing power

You can mitigate these problems by adjusting your parameters – either by speeding up your machine’s movement or reducing power. Again, conducting tests beforehand will help in determining optimal settings.

Advantages of Glass Engraving with the Monport K40 Laser

Economic advantage

One of the significant merits of using the Monport K40 Laser machine for glass engraving is its cost-effectiveness. Besides being reasonably priced, its functional abilities allow it to produce high-quality engravings that can be sold at a high value.

Efficiency and time-saving

The Monport K40 Laser machine saves you valuable time with its high-speed capabilities. You can generate your intricate and detailed glass engraving designs within a short period. The machine’s accuracy also ensures less wastage.

Achieving clean and sharp graphic lines

The precision involved in laser engraving is superior compared to other engraving techniques. You will achieve sharp and precise graphic lines every time, further enhancing the value of your creation.


Learning and understanding the process of glass engraving with the Monport K40 Laser machine isn’t a walk in the park. It requires patience, precision, and a deep understanding of the steps and necessary safety procedures. However, once you achieve mastery, the result is immensely rewarding. The merits it boasts – including economic advantages, time-saving operations, and the sheer ability to produce clean, intricate designs – make it a machine of choice for many glass engraving enthusiasts. Adhere to the guidelines, continuously test and tweak settings based on your preferences, and watch as the machine converts your creative ideas into spectacular engraved glass pieces.

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