Mr. Markus Hatzenbichler Profile

Markus Hatzenbichler

Graduate Student at Technische Univ Wien

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 8 March 2013 Paper

Additive manufacturing of photopolymers using the Texas Instruments DLP lightcrafter

M. Hatzenbichler, M. Geppert, R. Seemann, J. Stampfl

Proceedings Volume 8618, 86180A (2013) https://doi.org/10.1117/12.2001651

KEYWORDS: Digital Light Processing, Light emitting diodes, Additive manufacturing, Raster graphics, Projection systems, Solids, Polymers, Photopolymers, Prototyping, Ceramics

Read Abstract +

The use of the Texas Instruments DLP^® LightCrafter^TM as a compact module in lithography-based additive manufacturing technologies (AMT) is discussed in this paper. For this purpose the light engine is placed underneath a transparent vat which is coated with a PTFE-film and filled with photosensitive resin. By loading an appropriate bitmap into the light engine, the resin can be exposed selectively to obtain a photopolymerized layer. To integrate the device into the building process, a configurable I/O trigger is required since the loaded bitmap should be exposed only in a certain period (exposure time). By stacking up the individual layers with a typical layer thickness between 25 and 50μm, a three-dimensional part is built up. The current setup of the used digital LEDs in combination with a customized optical projection system ensures a spatial and temporal homogeneity of the intensity at the build platform, which is significantly better than with traditionally used engines. It could be shown that this system can fabricate threedimensional parts with a resolution < 40μm in x-y plane and 15μm in z-axis. Additionally, mechanical properties (e.g. bending strength) were measured and potential anisotropies, which might be caused by the layered manufacturing process, were assessed. Ceramic-filled polymers were also used and the necessary post-processing steps like the removal of the polymer phase after structuring and the final sintering step to obtain fully dense ceramic parts are discussed.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years