Contour generation algorithm for Projection Mask Stereolithography 3D printing process
Projection mask stereolithography is a latest technology in 3D printing industry. It relies on UV projection to cure the photocurable resin layer-by-layer to build the solid 3D object. The projections are generated from tessellated STL CAD model using contour generation algorithm that generates 2D c...
| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2018
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| Online Access: | http://umpir.ump.edu.my/id/eprint/23572/ http://umpir.ump.edu.my/id/eprint/23572/1/Contour%20Generation%20Algorithm%20for%20Projection%20Mask%20Stereolithography%203D%20printing%20process.pdf |
| _version_ | 1848821837123813376 |
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| author | Faeiz Azizi, Adnan F. R. M., Romlay |
| author_facet | Faeiz Azizi, Adnan F. R. M., Romlay |
| author_sort | Faeiz Azizi, Adnan |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Projection mask stereolithography is a latest technology in 3D printing industry. It relies on UV projection to cure the photocurable resin layer-by-layer to build the solid 3D object. The projections are generated from tessellated STL CAD model using contour generation algorithm that generates 2D contours as the projection mask. The computational of the algorithm consumes a lot of memory for high-resolution printing. Low-resolution causes the stair-case effect to visibly appear on the printed model. Using real-time contour generation algorithm reduces the memory consumption and retains the high-resolution printing quality and accuracy. Pixel line mapping algorithm is implemented on the generated line segments to scale the line segments with respect to the display resolution of the projection device. Contour loop algorithm connects each of these pixel line segments into multiple closed-loop contours. The algorithms are implemented on an Alien STL model having 150350 facets. It is found that the pixel mapping algorithm correctly scales the model while retaining the aspect ratio of the model. The result of contour loop algorithm shows that the mean contour loop execution time is 0.87 milliseconds which is relevant for real-time application. |
| first_indexed | 2025-11-15T02:31:41Z |
| format | Conference or Workshop Item |
| id | ump-23572 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T02:31:41Z |
| publishDate | 2018 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-235722019-01-02T04:31:04Z http://umpir.ump.edu.my/id/eprint/23572/ Contour generation algorithm for Projection Mask Stereolithography 3D printing process Faeiz Azizi, Adnan F. R. M., Romlay TJ Mechanical engineering and machinery Projection mask stereolithography is a latest technology in 3D printing industry. It relies on UV projection to cure the photocurable resin layer-by-layer to build the solid 3D object. The projections are generated from tessellated STL CAD model using contour generation algorithm that generates 2D contours as the projection mask. The computational of the algorithm consumes a lot of memory for high-resolution printing. Low-resolution causes the stair-case effect to visibly appear on the printed model. Using real-time contour generation algorithm reduces the memory consumption and retains the high-resolution printing quality and accuracy. Pixel line mapping algorithm is implemented on the generated line segments to scale the line segments with respect to the display resolution of the projection device. Contour loop algorithm connects each of these pixel line segments into multiple closed-loop contours. The algorithms are implemented on an Alien STL model having 150350 facets. It is found that the pixel mapping algorithm correctly scales the model while retaining the aspect ratio of the model. The result of contour loop algorithm shows that the mean contour loop execution time is 0.87 milliseconds which is relevant for real-time application. 2018 Conference or Workshop Item NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/23572/1/Contour%20Generation%20Algorithm%20for%20Projection%20Mask%20Stereolithography%203D%20printing%20process.pdf Faeiz Azizi, Adnan and F. R. M., Romlay (2018) Contour generation algorithm for Projection Mask Stereolithography 3D printing process. In: 1st International Postgraduate Conference on Mechanical Engineering 2018 , 31 October 2018 , UMP Library, Pekan. pp. 1-8.. (Published) |
| spellingShingle | TJ Mechanical engineering and machinery Faeiz Azizi, Adnan F. R. M., Romlay Contour generation algorithm for Projection Mask Stereolithography 3D printing process |
| title | Contour generation algorithm for Projection Mask Stereolithography 3D printing process |
| title_full | Contour generation algorithm for Projection Mask Stereolithography 3D printing process |
| title_fullStr | Contour generation algorithm for Projection Mask Stereolithography 3D printing process |
| title_full_unstemmed | Contour generation algorithm for Projection Mask Stereolithography 3D printing process |
| title_short | Contour generation algorithm for Projection Mask Stereolithography 3D printing process |
| title_sort | contour generation algorithm for projection mask stereolithography 3d printing process |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/23572/ http://umpir.ump.edu.my/id/eprint/23572/1/Contour%20Generation%20Algorithm%20for%20Projection%20Mask%20Stereolithography%203D%20printing%20process.pdf |