Common problems affecting the cutting size accuracy of laser cutting machines

 

Common Problems Affecting the Accuracy of Laser Cutting Machine Cutting Dimensions

There are various factors that can cause deviations in cutting dimensions during laser cutting. Here are some common issues:

Mechanical Issues

• Reverse clearance:
  Reverse clearance refers to the motion delay caused by the clearance between gears and screws in mechanical transmission systems. This results in a deviation between the starting and ending points of the cutting.

• Gear and rack meshing problem:
  If the gear and rack meshing on the X or Y axis is improper, it can cause uneven movement, thereby affecting the accuracy of cutting dimensions.

• Motor installation issue:
  Improper motor installation (such as loose coupling or incorrect gasket installation) can result in inaccurate movement.

• Guide rail issue:
  Excessive errors in parallelism and perpendicularity of the guide rail can cause deviations in cutting dimensions.

• Synchronization wheel issue:
  Loose or damaged synchronization wheels can lead to inaccurate cutting dimensions, especially during high-speed cutting.

• Sliding block issue:
  Loose or damaged sliding blocks can cause jagged patterns to appear during the cutting process, affecting cutting accuracy.

• Uneven worktable:
  An uneven worktable can cause a change in the focus of laser cutting, thereby affecting the accuracy of cutting depth and size.

Optical Path Issues

• Misalignment of laser beam:
  Misalignment of the laser beam can cause the cutting line to deviate from the predetermined path, thereby affecting the accuracy of cutting dimensions.

• Optical component contamination:
  Dust, dirt, or other contaminants on the lens or focusing lens can scatter the laser beam, reducing cutting accuracy.

• Focusing lens issue:
  Loose or incorrect focal length of the focusing lens can cause deviations in cutting dimensions.

Material Issues

• Uneven material:
  If the surface of the cutting material is uneven, it may cause a change in the focus of laser cutting, affecting the cutting quality and dimensional accuracy.

• High reflectivity of materials:
  For high reflectivity materials such as aluminum and copper, laser beams may be reflected, resulting in low cutting efficiency and affecting cutting quality and dimensional accuracy.

Other Factors

• Improper setting of cutting parameters:
  Cutting speed too fast or too slow, laser power too high or too low, inappropriate air pressure, etc., can all affect the accuracy of cutting dimensions.

• Control system issues:
  Control card, driver, or motor failures may result in inaccurate motion control, thereby affecting the accuracy of cutting dimensions.

• Environmental factors:
  Changes in environmental temperature and humidity may affect the accuracy of the machine, especially in places without air conditioning.

Recommendations

To ensure the accuracy of laser cutting dimensions, please make sure to:

• Regularly maintain the machine, including cleaning optical components, lubricating guide rails, inspecting motors and transmission systems, etc.
• Select appropriate cutting parameters based on different cutting materials and thicknesses.
• Ensure that the surface of the cutting material is flat and firmly fixed on the workbench.
• During the cutting process, closely observe the operating status of the machine, and promptly identify and solve problems.

https://laserqa.com/questions/D1sg/common-problems-affecting-the-cutting-size-accuracy-of-laser-cutting-machines

Comparison Table: xTool Creative Space vs LightBurn

 Both xTool Creative Space and LightBurn offer unique benefits and cater to different user needs. xTool Creative Space shines with its ease of use, cost-efficiency, and seamless integration with xTool machines, making it perfect for beginners and hobbyists. In contrast, LightBurn excels in versatility, advanced features, and support for various laser machines, making it ideal for professionals and those handling complex projects. By weighing these factors, users can find the software that best fits their individual requirements.

Criteria	xTool Creative Space	LightBurn
Ease of Use	User-friendly, great for beginners	More complex, aimed at experienced users
Compatibility	Exclusively with xTool machines	Compatible with various laser brands
Cost	Generally lower	Generally higher
Learning Curve	Easier to master quickly	Steeper learning curve
Features	Basic design tools and built-in templates	Advanced features like vector drawing, extensive customization
User Experience	Simplified setup and operation	Advanced control and customization
Community Size	Smaller, xTool-centric	Larger, multi-brand
File Handling	Limited file options	Broader file format support
Project Suitability	Simple to moderate projects	Complex and detailed projects
Platform Availability	Windows and macOS	Windows and macOS
Customer Support	Easy, specific to xTool machines	Broad, multi-device support

Comparison Table: xTool Creative Space vs LightBurn

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Laser engraving machine winter protection

 Winter protection for laser engraving machine

1. If there is absolutely no power outage in the local area, do not turn off the chiller or water pump at night. At the same time, in order to save energy, the temperature of low-temperature and room temperature water is adjusted to 5–10 degrees Celsius to ensure that the coolant is in a circulating state and the temperature is not lower than freezing point.
2. After daily use, drain the laser, laser output head, and cooling liquid from the water cooler. All cooling water in the laser, laser output head, processing head, and water cooling machine must be completely drained in order to effectively protect the entire water cooling pipeline and related components.
3. Use antifreeze or glass water as coolant.

When the laser engraving machine is frequently powered off and does not have the conditions for daily coolant drainage, antifreeze must be used. The base fluid of antifreeze is generally composed of alcohols and water. When selecting or mixing antifreeze, its freezing point should be 5 degrees Celsius lower than the lowest temperature of the operating environment.

It can be mixed with glass water at minus 35 degrees Celsius or ethylene glycol in a 1:1 ratio with pure water, and can reach minus 25 degrees Celsius without freezing.

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How to Maintain The Laser Engraving Machine?

 How to Maintain The Laser Engraving Machine?

1. Laser tube mounting fulcrum to be reasonable, the fulcrum should be the total length of the laser tube 1/4, otherwise the laser tube spot pattern will deteriorate, and some work spot becomes a few spots for some time, so the laser power drop can not meet the processing requirements, resulting in Constantly change management.
2. Water protection system should always check the cleaning, cooling water often can not flush the water to protect the float switch or water protection float switch is not reset, can not use short-circuit method to solve the urgent needs. Circulating cooling water quality is good, tap aluminum oxide is too serious, the use of regular cleaning of the pump and water pipes, water protection in the dirt, otherwise easily lead to laser tube burst or cold head off.
3. Cooling system should be grounded, and often clean and check water tanks and waterways, temperature control point of refrigeration temperature control water tank should be reasonable, otherwise it will cause laser tube damage and condensation damage laser power drop, shell cold head off, life is greatly shortened, so that Can not work, resulting in change laser tube.
4. Check the focusing lens and the mirror, work for a period of time on the frame on the heat, the lens surface discoloration mold rust; stripping cracking belong to the object to be replaced, in particular, many customers use air pumps and air compressors, so focusing lens On the water quickly, now the company developed a patented product of high-power die-cutting laser cutting machine on a very thorough solution to the difficult problem of water to exclude water.
5. Power grid power to match. All parts of the entire equipment power distribution and contact points to be good (fan, water cooler, laser machine, laser power, the computer to be independently powered.
6. Laser tube working current to be reasonable, not long-term work in the light intensity of 90–100; to rationalize the application of laser and laser energy savings; optical system to be clean, otherwise lead to premature aging and rupture of the laser tube, so the laser machine working light intensity Tune in 50–60%, and then adjust the working speed according to the material, so that is the best working condition of the laser tube.

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