Characterization of a custom-made digital light processing stereolithographic printer based on a slanted groove micromixer geometry

Valentinčič, Joško (author), Prijatelj, Miha (author), Jerman, Marko (author), Lebar, Andrej (author), Sabotin, Izidor (author)

A custom-made stereolithographic printer using a digital light processing optical (DLP) system based on a digital micromirror device (DMD) was characterized. Several sizes of slanted grooved micromixers (SGM) were produced and typical dimensions were measured and compared to nominal values. The results show that developed SLA printer is precise enough to be used for prototyping of larger microfluidic devices. The lateral geometries of the smallest printed micromixer designs deviated less than 20 um from the nominal values and related feature depths deviated for less than 15 um. However, further modifications are needed in order to improve the repeatability, accuracy and printing resolution.

• Language: English
• Keywords: DLP stereolithography, 3D printers characterizations, micromixers, digital light processing
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2020
• Number of pages: Str. 1-6
• Numbering: Vol. 8, art. JMNM-19-1073
• PID: 20.500.12556/RUL-127110
• UDC: 004.356.2(045)
• ISSN on article: 2166-0468
• DOI: 10.1115/1.4046044
• COBISS.SI-ID: 17038363
• Publication date in RUL: 18.05.2021

VALENTINČIČ, Joško, PRIJATELJ, Miha, JERMAN, Marko, LEBAR, Andrej and SABOTIN, Izidor, 2020, Characterization of a custom-made digital light processing stereolithographic printer based on a slanted groove micromixer geometry. Journal of micro- and nano-manufacturing [online]. 2020. Vol. 8,  JMNM-19–1073, p. 1–6. [Accessed 14 April 2025]. DOI 10.1115/1.4046044. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=127110

Record is a part of a journal

• Title: Journal of micro- and nano-manufacturing
• Shortened title: J. micro- nano-manuf.
• Publisher: ASME
• ISSN: 2166-0468
• COBISS.SI-ID: 14979611

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 01.03.2020

Secondary language

• Language: Slovenian
• Keywords: DLP stereolitografija, karakterizacija 3D tiskalniki, mikromešalniki, digitalno procesiranje svetlobe

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0248
• Name: Inovativni izdelovalni sistemi in procesi

• Funder: EC - European Commission
• Funding programme: H2020
• Project number: 811040
• Name: Chair Of Micro Process Engineering and TEchnology
• Acronym: COMPETE