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Item list: Laser cutting machine : Thunderlaser Nova 35 (80W) Glued wood: 3mm parameter settings: Engraving speed: 500mm / s Engraving power: 15% Engraving interval: 0.08 Whether to blow: weak blow We can see that the change of focal length affects the change of carving. Why do you say that? First of all, we can see that from top to bottom, as the focal length increases, the picture becomes more and more blurred. What is the reason for this? Actually, it is because the light spot of the carving becomes larger and the fineness of the carving is caused. 6mm focal length 12mm focal length 18mm focal length 24mm focal length Then, the depth of the engraving will become shallower as the focal length becomes larger. Similarly, the change of focal length will cause the spot to become larger. Therefore, the energy of the focus is weakened and the engraving will be shallower. Here, we can also see that the color of the engraving will become darker as the ...

In the previous tutorials, we and you analyzed several factors that affect engraving, namely power, speed, and air blowing. In this issue, we will bring you another factor that affects engraving- Engraving interval. Item list: Laser cutting machine : Thunder laser Nova 35 (80W) Glued wood: 3mm parameter settings: Engraving speed: 500mm / s Engraving power: 15% Whether to blow: weak blow Focal length: 6mm Interval: how long the laser head scans the next line, in other words, the distance between the two lines. From top to bottom, we can see that as the carving interval becomes smaller and smaller, the carving effect becomes deeper and deeper. When we look closely at the sculptural details, we find that when the interval is set too large, the picture looks incomplete. This is because the details are too sculpted because the spacing is too large. When the interval is set too small, repeated engraving will cause the picture to be carved too deeply, or even destr...

Item list: Machine:  Laser engraving machine  (80W) Glued wood: 3mm parameter settings: Engraving power: 15% Engraving interval: 0.08 Focal length: 6mm Many people do n’t understand why blowing air will also affect the carving to varying degrees. Do you know that powder is also produced when engraving, it will adsorb on the surface of the engraving material. When engraving, it will affect the use of laser lenses and the effect of laser engraving under certain circumstances.  According to the effect of the above picture, we can see that from top to bottom, as the air blowing becomes weaker and weaker, the color of the text becomes lighter Not blowing Weak blow Strong blow After observing the details of the edges of the text again, we found that when the air is not blown, the edges of the text are hardly yellow; when it is strongly blown, it is a little yellow; when it is weakly blown, the edge of the text is yellowest. Although the edges are not yellow wh...

Item list: Machine: Laser engraving machine (80W) Glued wood: 3mm parameter settings: Engraving power: 15% Engraving interval: 0.08 Whether to blow: weak blow Focal length: 6mm The effect of the above picture is very obvious. When other parameters are the same when we are sculpting, the faster the speed, the lighter the sculpting effect, the less obvious the yellowing effect, and the shorter the time it is used, that is In the case, when we set the speed to the maximum, the work efficiency will be faster. On the contrary, when our engraving speed is smaller, the longer the engraving time is, the yellowing phenomenon becomes more serious, so the effect of engraving will be deeper. in conclusion: We also draw a conclusion: the faster the speed, the shallower the engraving effect, and the higher the efficiency; on the contrary, the slower the speed, the deeper the engraving effect, and the lower the efficiency. When the speed is constant at the h...

Parameters set in this tutorial: Engraving speed: 500mm / s Engraving clearance: 0.08 We know that there are many aspects of engraving on the machine that affect the engraving effect, such as power, speed, air blowing, focal length, interval, etc. It can be said that different factors have different effects on engraving. So why put the power first? Is there a relationship between power and energy? What effect does the power change have on engraving? In fact, putting power in the first place is, of course, a parameter we often set. The effect of engraving varies with the power parameter setting. When the power of engraving is greater, the energy of laser engraving will be greater, and the impact on the engraved object will be greater. When the energy is smaller, the laser energy is smaller, and the impact on the sculpted object is smaller. We can look at the pictures carved this time. It is not difficult to see that there are obvious changes from top to bottom. As the ...

Ready to work: Tool: Laser cutting machine (80W) Glued wood: 3mm parameter settings: Engraving power: 15% Engraving interval: 0.08 Whether to blow: weak blow Focal length: 6mm The effect of the above picture is very obvious. When other parameters are the same when we are sculpting, the faster the speed, the lighter the sculpting effect, the less obvious the yellowing effect, and the shorter the time it is used, that is In the case, when we set the speed to the maximum, the work efficiency will be faster. On the contrary, when our engraving speed is smaller, the longer the engraving time is, the yellowing phenomenon becomes more serious, so the effect of engraving will be deeper. in conclusion: We also draw a conclusion: the faster the speed, the shallower the engraving effect, and the higher the efficiency; on the contrary, the slower the speed, the deeper the engraving effect, and the lower the efficiency. When the speed is constant at t...

This issue: Laser Cutting Advanced Tutorial 08 - Paper Cutting Tips Tool material: Laser cutting machine : Thunderlaser Nova 35 (80watt) Hard cardboard and A4 paper represent several sheets of soft paper parameter settings: Cutting speed: 350mm/s Cutting power: 15% - 35% Cutting focal length: 6mm Whether to blow: strong blowing When laser cutting paper, you need to pay attention to the choice of materials and the setting of parameters. Let's analyze it briefly. Comparison of effects: 1. Material selection The choice of materials is especially important when cutting paper with a laser. We have selected two very different types of paper, one is A4 paper represented by softness, rice paper, and the other is paper represented by hard cardboard. After experimental testing, we can see that the effect of cutting two kinds of paper is also very different. Why? Let me explain each one below. The effect of the soft texture paper represented by A4 paper It c...

Among the many materials, we shared the cutting technique of glued wood in the last issue. With the pace of our tutorial, we continue to share the cutting techniques of different materials. In this issue: Laser Cutting Advanced Tutorial 07 - Acrylic Cutting Skills Tool material: machine: Laser cutter (80watt) 6mm thickness acrylic parameter settings: Cutting speed: 5mm/s Cutting power: 65% - 70% Cutting focal length: 6mm Whether to blow: do not blow Many friends have feedback to me that cutting acrylic is very troublesome, and it is prone to problems such as uneven surface, strong concave and convex, white edges of the cutting edge, and melting of the honeycomb panel. What should I do? Comparison of effects: Compared to the commonly-cut glulam board, the acrylic cut does not seem to be as simple as it is supposed to be. It is not possible to follow the cutting parameters of the board. In order to cut the acrylic smooth, smooth, the edges are not whitish and the h...

After a series of laser cutting advanced tutorials, I believe that you have mastered the contents of the previous issues, but today we take a little time to review the past issues. 1. The higher the power, the deeper the cut 2. The faster the speed, the shallower the cut 3. In order to protect the lens during cutting, get the best effect, try to blow strong 4. The best focal length can get the best cutting effect. When there is no special application, Leiyu laser cutting machine uses 6mm focal length You can see that the past few issues are related to the setting of parameters, so today, let's share a special content - material. We all know that the laser cutting machine faces different materials and the set parameters will be different. This issue: Laser Cutting Advanced Tutorial 06 - Wood Cutting Tips Tool material: Laser cutting machine: 80watt 3mm thickness glued wood board parameter settings: Cutting speed: 35mm/s Cutting power: 45% - 50% Cutting focal l...

Last week, we learned that different focal lengths have different effects on the cutting effect by cutting small pieces of wood, and we know that 6mm is the best cutting focal length. In addition, we have found that the width of the slit becomes wider as the focal length becomes larger. This issue: Laser Cutting Advanced Tutorial 05 - Ingenious Use of Focal Length List of items: Laser cutter : Nova 35 (80W) Glued wood board: 3mm parameter settings: Cutting speed: 20mm/s Cutting power: 25% Cutting focal length: 6mm, 15mm, 18mm Whether to blow: weak blowing Comparison of effects: We can compare the two samples, one is at a focal length of 6mm, and the other is at a focal length of 15mm. It can be seen that the 6mm focal length is very thin because of the slit, and it is necessary to ensure that the pattern is not cut through, and the power cannot be set too high, resulting in a pattern that is not obvious enough and lacks a sense of line. On the contrary, ...

After the three influencing factors of power, speed and blowing, the laser cutting advanced tutorial continues to describe the fourth factor that affects laser cutting, the focal length. The theme of this issue: Laser Cutting Advanced Tutorial 04 - The effect of focal length on cutting effect parameter settings: Cutting speed: 20mm/s Cutting power: 25% Cutting focal length: 6mm, 18mm, 24mm Whether to blow: weak blowing We also know that physics is the measure of the aggregation or divergence of light in an optical system. It also refers to the distance from the center of the lens to the focus of the light when the parallel light is incident. Simply put, the focal length is the distance between the focus and the center point of the mirror. The right focal length can make the best effect. So today, let's talk about the best focal length of Leiyu laser cutting machine. Comparison of effects: Comparison of effects We can see from the pictures that the differen...