ANALYSIS OF OPTICAL SYSTEM PROBLEMS IN CO2 LASER ENGRAVERS FOR WOOD AND NON-METAL CUTTING AND ENGRAVING
DOI:
https://doi.org/10.34185/1991-7848.itmm.2026.01.015Keywords:
CO2 laser engraver, optical system, mirrors, focusing lens, alignment, wood engraving, non-metal cutting, maintenance, engraving qualityAbstract
This paper examines problems of the optical system in CO2 laser engravers for cutting and engraving wood and non-metallic materials. It is established that combustion products — smoke, resin vapors, and solid particles deposited during processing — are the primary threat to processing quality. Four main problem groups are analyzed: contamination and mechanical damage to mirrors and focusing lenses; optical path misalignment caused by drive vibrations; incorrect focal distance when material thickness varies; and thermal degradation of ZnSe lens coatings under prolonged high-power operation. The relationship between the technical condition of the optical system and characteristic engraving defects is established. Scheduled maintenance recommendations for optical units are proposed to extend equipment service life and ensure consistent processing quality.
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