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Author:Lehtinen, Pekka A.
Title:Projection microstereolithography equipment
Projektiomikrostereolitografialaitteisto
Publication type:Master's thesis
Publication year:2013
Pages:[7] + 67      Language:   eng
Department/School:BIT-tutkimuskeskus
Main subject:Optiikka ja molekyylimateriaalit   (Tfy-125)
Supervisor:Kaivola, Matti
Instructor:Partanen, Jouni
Electronic version URL: http://urn.fi/URN:NBN:fi:aalto-201303221839
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark Aalto  22   | Archive
Keywords:additive manufacturing
rapid prototyping
stereolithography
microstereolithography
materiaalia lisäävä valmistus
pikavalmistus
stereolitografia
mikrostereolitografia
Abstract (eng): Stereolithography (SL) is one of the most successful additive manufacturing technologies.
In SL a three-dimensional object is fabricated directly from a CAD model.
The product is manufactured layer-by-layer by curing liquid resin.
These layers, which are built on one another, form the product.
In projection stereolithography (PSL) the laser light source and scanner system commonly used in SL, are replaced with a digital micromirror device (DMD) or a liquid crystal display (LCD).
Thus, each layer is cured at once in one exposure according to the pattern on the DMD or LCD.

Projection microstereolithography (PµSL) operates on the same principle as PSL, but the fabrication resolution is significantly higher.
In this study, a PµSL setup with a DMD chip is constructed and a computer code is written to control the entire manufacturing process.
Abstract (fin): Stereolitografia on menestyksekkäimpiä materiaalia lisääviä valmistusteknologioita.
Stereolitografiassa kolmiulotteinen kappale tehdään suoraan CAD-mallista.
Tuote valmistetaan kovettamalla nestemäistä resiiniä kerroksittain.
Nämä päällekkäin kootut kerrokset muodostavat kappaleen.
Projektiostereolitografiassa (PSL) laservalonlähde ja skanneri on korvattu DMD-sirulla (Digital Micromirror Device) tai nestekidenäytöllä (LCD), jolloin jokainen kerros kovettuu DMD:ssä tai LCD:ssä olevan kuvion mukaisesti kertavalotuksella.

Projektiomikrostereolitografia (PµSL) toimii samalla periaatteella kuin PSL, mutta kappale valmistetaan huomattavasti paremmalla tarkkuudella.
Tässä työssä rakennetaan DMD:tä käyttävä PµSL-laitteisto ja kirjoitetaan tietokoneohjelma valmistusprosessin hallintaa varten.
ED:2013-03-14
INSSI record number: 45941
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