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It is represented a possible way to standardize and to automate the quantitative description and the analysis of the formed by the scanning electron microscope polymer based films surfaces’ images. Also there are the calculating algorithms for the topographic model forming and the degrees of planar and contour digital heterogeneities calculating and the analysis process model with the computer application interface and the corresponded results of the sulfonated and fluorinated low-density polyethylene films SEM-images’ characterization. Due to the universality of the proposed techniques for quantitative image description and simulating they can be used in quality control systems under the design and manufacture of the surface-modified polymer films.

The study is concentrated on the topic of 3D-printed polymer gears quality improving issues in terms of both mechanical strength and geometric precisionat the production by FDM process. The conception of gears radial 3D-printing based on functional dimensional communications modelling between the basic and gear elements by string-mesh structure forming of even- and uneven numbered layers; printing gear layers are represented as stretched string system, pairwise and symmetrical placed related to the reference hole axis. Tangential dimensional communication of bidirectional tangent lines to generating circle was applied to the evolvement gears profiles forming. Formation of the gears tooth root on the basic circle accompanied with string-mesh layer structure forming will provide quality gears improvement.

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