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Advanced Laser Engraving Tutorial 06—The Effect of Focal Length on Engraving

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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
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Advanced Laser Engraving Tutorial 05—Effect of Engraving Interval on Engraving

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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
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Advanced Laser Engraving Tutorial 04—The Effect of Blowing on Engraving

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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 when not blowing
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Advanced Laser Engraving Tutorial 03-The effect of speed on sculpting

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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
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Advanced Laser Engraving Tutorial 02—Influence of laser power on engraving

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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
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Advanced Laser Engraving Tutorial 01—The Effect of Speed on Engraving

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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
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Laser Cutting Advanced Tutorial 08 - Paper Cutting Tips

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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
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