Zasnova in izdelava modula za regulacijo temperature v delovnem prostoru 3D tiskalnika

V sklopu magistrske naloge smo raziskali kako vzdrževanje konstantne temperature v delovnem območju 3D tiskanja vpliva na kakovost izdelkov iz zahtevnejših materialov. V prvi fazi potrebujemo kvalitetno ohišje za 3D tiskalnik. Ohišje omogoča hitrejše ogrevanje delovnega prostora, preprečuje požar, zaščiti tiskalnik in izdelek pred nečistočami iz okolice. Prav tako zmanjša hrup tiskalnika. Nadalje potrebujemo grelec za dodatno ogrevanje prostora, ko je to potrebno. Izziv je zagotavljanje optimalne temperature in nizke vlažnost zraka v delovnem prostoru tiskalnika. V ta namen smo zasnovali modul, ki bo nenehno nadzoroval in krmilil ti dve veličini. S tem bomo povečali kakovost izdelkov oziroma zagotovili boljše pogoje za izdelavo. V sklopu metodologije predstavimo zasnovo različnih konceptov, preračune in simulacije, ki jih tudi eksperimentalno preverimo. Na podlagi kriterijev izberemo najustreznejši koncept in ga v naslednji fazi izdelamo. Opišemo postopek priprave sistema za programiranje mikrokrmilnika Arduino in elektro vezav posameznih komponent. Ob pomoči modula za krmiljenje temperature, ohišja in IR grelca smo v območju delovnega prostora tiskalnika zagotovili konstantno temperature v območju 1 °C ter nizko vlažnost, ki znaša okoli 20 %. Kakovost tiskanja zahtevnejših se je po pričakovanjih izboljšala. As part of the MSc thesis, we investigated how maintaining a constant temperature in the 3D printing working area affects the quality of products made from more complex materials. In the first phase, we need a quality housing for the 3D printer. The enclosure allows for faster heating of the work area, prevents fire, protects the printer and the product from impurities from the surroundings. It also reduces the noise of the printer. Furthermore, we need a heater for additional heating of the room when needed. The challenge is to ensure optimum temperature and low humidity in the printer's workspace. To this end, we have designed a module that will continuously monitor and control these two variables. This will increase the quality of the products or ensure better production conditions. As part of the methodology, we present the design of various concepts, calculations and simulations, which are also experimentally verified. Based on the criteria, we select the most appropriate concept and produce it in the next phase. We describe the process of preparing the system for programming the Arduino microcontroller and the electrical connections of the individual components. With the help of the temperature control module, the housing and the IR heater, we have ensured a constant temperature in the range of 1 °C and a low humidity of around 20 % in the working area of the printer. As expected, the print quality of the more demanding prints has improved.