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Fiber lasers

> How to lubricate guides in fiber lasers?

There is a planty of lubricants and oils suitable for linear guides used in laser plotters. However, it is best to use the same oil that was used by the manufacturer. It is usually an oil with a viscosity of 68 with additional components to reduce dirt and also to eliminate the effect of sticking the "ANTI STICK SLIP" splint.

The most frequently used lubricants:

Microlube GB0, (KP 0 N-20), Staburags NBU8EP, Isoflex Spezial, Fa. KLÜBER
Optimol Longtime PD0, PD1 lub PD2 depending of using temperature , Fa. OPTIMOL
Paragon EP1, (KP 1 N-30), Fa. DEA
Multifak EP1, Fa. TEXACO

> How often should I change the coolant?

Coolant should be replaced every 3 months. After 3 months of work we shouldn't notice that it changes color or decreases significantly in the cooling system, but the biggest problem is the microorganisms developing in the system.

> Which coolant is best for fiber laser ?

It should be used demineralized or distilled water , also admixtures of liquids that reduce the freezing point of water are allowed, unless they are corrosive. To ensure the longest service life of the device, it is recommended to use water without admixtures, but to maintain the temperature above 10 C in the room where the device works.

> Does a fiber plotter cut 2 times more power 2 times faster?

The cutting speed depends mostly on the complexity of the project, the number of small details, the type of metal and the thickness of the cut sheet metal. The last least significant element, though also very important, is the power of the laser source.

> Is it possible to engrave with a fiber plotter?

On fiber plotters you can engrave but only vector graphics. However, for industrial use as a marking machine for cut-outs, it will prove to be a perfect solution.

> How long does it take to learn how to use the laser?

If you know how to use graphic design software such as Corel Draw, Photoshop, Illustrator, CAD/CAM, you can be ready to work in a few hours! You can learn for yourself from the materials available on the Internet, or you can buy training on how to use the device and software. If you decide on self-study there will be trials and errors to find the optimum speed and power setting to be used with different materials on which you will operate. We invite you to familiarize yourself with the "Knowledge Base"; section of our website, where you will find a lot of useful information.

> What is the difference between a fiber plotters and co2 lasers ?

Co2 laser is used for cutting in non-metallic materials and steel - it does not cut non-ferrous metals such as aluminum, copper, brass, silver, gold. Fiber plotter is used to cut out only in metals, also in non-ferrous metals, additionally it is characterized by much greater precision than the plotter co2.

Co2 lasers FAQ

> Does higher air pressure bring better results?

In the case of cutting thick materials and some plastics, the use of higher pressure can significantly improve the quality. Increasing the pressure using a higher capacity compressor allows reach working pressure in the range of 0.1 - 3.0 bar for extremely difficult and thick materials. However, when engraving on most materials it is better to use a lower air pressure in the range of 0.1 - 0.3 bar.

> Is it possible to increase the laser power during work time ?

Yes, it is possible, only if that the device can accommodate a larger tube size. In addition, it is necessary to replace the power supply of the tube into a stronger one, which will allow for efficient operation at full capacity of the tube. Our service also provides such services.

> How to recognize that the tube is almost worn out?
  • The normal color of the laser beam is purple during operation. When the tube is woning out color becomes white.
  • with 100% efficient optics (mirrors and lenses) and proper calibration of the laser beam there is a decrease in performance in the form of uncut elements or poor quality of the engraved element.
  • You can also use our technicians service to measure the effectiveness of the laser tube.
> Do I need a separate engraving and cutting device?

No, our co2 lasers can cut and engrave in one process ensuring the highest quality.

You only need one machine for both operations.

> What’s the difference between Mo mirrors and Si mirrors?

In the case of a laser with a power of less than 80 W and clean conditions when engraving, I recommend Silicon-Mirrors (SI - gold), because they have the best reflectivity (> 99%).

For a laser that performs very dirty work (f.e cutting wood 8 hours a day) or working with aggressive chemicals, I would recommend Molibden-Mirror (MO - silver). The reflecting surface (no coating, molybdenum is only polished) is very resistant and can be cleaned very easily. With a reflectivity of 98.5%, the Mo-Mirror (MO) mirrors are almost unbreakable.

> How often do you exchange gas in a co2 laser tube?

The gas in the co2 laser tube is hermetically sealed and requires no replacement or connection to the external cylinder.

> Which lens for which material?

Most co2 plotters are sold as engraving devices. They usually have a 19 or 20mm lens installed with the focus at a distance of 50. 8 or 63. 6 mm with the convex surface facing downwards to get the smallest spot (the highest DPI resolution).sers wanting to use their plotters in 100% cutting them well also materials up to 20mm thick. Achieving such effects requires the use of a 76.2mm focus lens for devices with a small head and 101.6 / 127mm lenses for devices with a large head (25mm lens). Additionally, the lens should be mounted so that it works with the convex side upwards.

> How to lubricate the CO2 laser guides?

There is a planty of lubricants and oils suitable for linear guides used in laser plotters. However, it is best to use the same oil that was used by the manufacturer. It is usually an oil with a viscosity of 68 with additional components to reduce dirt and also to eliminate the effect of sticking the "ANTI STICK SLIP" splint.

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