TOWARDS PRODUCTION OF MICROFEATURES ON A CUSTOM-MADE STEREOLITOGRAPHIC DLP PRINTER

Stereolithographic digital light processing (DLP) printing is a liquid-based additive manufacturing process, where 3D parts are made by curing a photosensitive polymer kept in vat. In this paper, the in-house DLP printer is presented. It uses two spindles for coarse and fine positioning in zaxis. A...

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Bibliographic Details
Published in:Proceedings in Manufacturing Systems 2018-01, Vol.13 (2), p.51-55
Main Authors: Valentinčič, Joško, Sevšek, Luka, Prijatelj, Miha, Sabotin, Izidor, Jerman, Marko, Lebar, Andrej
Format: Article
Language:English
Subjects:
Accuracy
Additive manufacturing
Biodegradable materials
Curing
Design
Experiments
Gamma rays
Light
Machining
Photosensitivity
Polymers
Printers
Printing
Process parameters
Spindles
Studies
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Summary:Stereolithographic digital light processing (DLP) printing is a liquid-based additive manufacturing process, where 3D parts are made by curing a photosensitive polymer kept in vat. In this paper, the in-house DLP printer is presented. It uses two spindles for coarse and fine positioning in zaxis. A printer resolution is determined by printing inclined channels of different depths. At this development level the resolution is below 100 µm and it is to be further improved. Suitable process parameters are determined, a micromixer is manufactured and compared to the micromixer produced by casting. Better machining results are obtained by printing, but casting is more suitable for large scale production.
ISSN:2067-9238
2343-7472