I nfluence of s elected p hotopolymers on the r esulting a ccuracy and s urface r oughness of the c omponent in d igital l ight p rocessing t echnology

Influence of Selected Photopolymers on the Resulting Accuracy and Surface of the Component Technology, Abstract The article focuses on the influence of the used photopolymers on the dimensional accuracy and surface roughness of the component in the production process using DLP technology. Thin square parts containing four holes and four roundings were used for the experiment. According to previous research in the field of additive technologies, the authors examined the diameters of holes and surface roughness dependences. A GOM ATOS II TripleScan optical 3D scanner with a measuring volume of MV170 was used for the 3D scanning of samples. The scans were evaluated in the GOM INSPECT software. The 3D printing method was Digital Light Processing (DLP) technology and a total of five types of photopolymers from Zortrax were used. Surface roughness was investigated by portable surface roughness tester Mitutoyo SJ-210. Five samples were printed from each material used (thirty copies in total). Prints were made on a Zortrax Inkspire 3D printer. Dimensional accuracy, ie diameters of all holes and surface roughness are shown in the article in the form of graphs.