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Terrie S

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Everything posted by Terrie S

  1. I am currently working on a publication that outlines some of these steps for working with heads. I can send you the part of the document that describes this. I also have a tutorial for pubic bones, but the steps for hollowing in Meshlab are the same:
  2. Hi James, If you export each of the separate STL models, you can combine them in Meshlab. Import both models into Meshlab, then go to Filters --> Mesh Layer --> Flatten Visible Layers. This will merge the 2 STL models into one that you can then export. I don't have experience printing with a dual extruder, so I can't help with how to specify the separate color, but I think Cura can handle that. Terrie
  3. Hi Rudy, There is a "Crop Volume" plugin in 3D Slicer that allows you to designate an ROI in the Volume Rendering tool, and then crop the CT volume to a subvolume which you can then use for rendering to 3D. I describe how to use it in my blog post here:
  4. Thanks so much for the suggestions! I will look into them. Do either of you know anything about the FEA module in Mimics?
  5. Any suggestions for software for FEA? I have Mimics but I do not currently have the FEA module for it.
  6. Thanks so much for the information! I suppose there's still much research to be done to explore the behavior/applicability of 3D printed bone models in these types of studies.
  7. Thank you for the link and comments mplishka and mikefazz. With the ability to CT scan cadaver material, I was thinking it would be interesting to create physical replicates of an individual's geometry, potentially with 3D printing if there were an appropriate material that would fracture like bone. The studies would build datasets for forensic interpretation. FEA might be the way to go for now. I like the idea of printing out a bone in different colors. Mikefazz, did you use a filament-based printer for the photo you posted?
  8. I was wondering if anybody has found a 3D printing material that works well for fracture studies. I am aware of Sawbones, but would like to explore the possibility of using CT scans to generate 3D printed bones of different size/age/sex for fracture/trauma studies. Thanks! Terrie
  9. Version 1.0.0

    11 downloads

    c0147 Skull, Male 62yo - processed, head, skull, bone, 3d model, mandible, maxilla, orbit, nasal, teeth, alveolar, zygomatic, arch, occipital, temporal, frontal, parietal, printable

    Free

  10. Version 1.0.0

    55 downloads

    62yo male skull from the Head-Neck Cetuximab collection of The Cancer Imaging Archives. Bosch, Walter R., Straube, William L., Matthews, John W., & Purdy, James A. (2015). Data From Head-Neck_Cetuximab. The Cancer Imaging Archive.http://doi.org/10.7937/K9/TCIA.2015.7AKGJUPZ Clark K, Vendt B, Smith K, Freymann J, Kirby J, Koppel P, Moore S, Phillips S, Maffitt D, Pringle M, Tarbox L, Prior F. The Cancer Imaging Archive (TCIA): Maintaining and Operating a Public Information Repository, Journal of Digital Imaging, Volume 26, Number 6, December, 2013, pp 1045-1057.

    Free

  11. Version 1.0.0

    6 downloads

    These are the pubic bones of a 59yo male (ABD_LYMPH_011) from the CT Lymph Nodes Collection of TCIA, which is made available under Creative Commons Attribution 3.0 Unported License. I modeled these with the Grayscale Model Maker in 3D Slicer (see tutorial pt. 1), hollowed with Meshlab, fixed for printing with Meshmixer. "ABD011_PS_M59_1mm.stl" has a wall thickness of 1 mm to minimize material volume for printing with powder-based printers (for example, through Shapeways)--I would recommend white "strong and flexible plastic." "ABD011_PS_M59_hollow.stl" is hollow with filled holes--this is what I would use for filament printers, but you could use this to print a solid model through Shapeways. I also cut the bottoms flat on both so they can be oriented upright to print--I would not recommend printing with the symphyseal face up because the layering process will impose ridges. If you want to split the left and right halves, in Meshlab use the filter "Split in Connected Components"--once split, each "layer" can be exported as separate .stl files. The "Plane Cut" tool in Meshmixer can be used to further cut the models if you want smaller segments. If you would like to add shading to the 3D models to enhance viewing of the symphyseal face, in Meshlab apply the Filter--> Color Creation and Processing--> Ambient Occlusion per Vertex.

    Free

  12. Yay! This works great and I was not able to break it!
  13. Version 1.0.0

    7 downloads

    These are the pubic bones of a 73yo male (ABD_LYMPH_007) from the CT Lymph Nodes Collection of TCIA, which is made available under Creative Commons Attribution 3.0 Unported License. I modeled these with the Grayscale Model Maker in 3D Slicer (see tutorial pt. 1), hollowed with Meshlab, fixed for printing with Meshmixer. "ABD007_PS_M73_1mm.stl" has a wall thickness of 1 mm to minimize material volume for printing with powder-based printers (for example, through Shapeways)--I would recommend white "strong and flexible plastic." "ABD007_PS_M73_hollow.stl" is hollow with filled holes--this is what I would use for filament printers, but you could use this to print a solid model through Shapeways. I also cut the bottoms flat on both so they can be oriented upright to print--I would not recommend printing with the symphyseal face up because the layering process will impose ridges. If you want to split the left and right halves, in Meshlab use the filter "Split in Connected Components"--once split, each "layer" can be exported as separate .stl files. The "Plane Cut" tool in Meshmixer can be used to further cut the models if you want smaller segments. If you would like to add shading to the 3D models to enhance viewing of the symphyseal face, in Meshlab apply the Filter--> Color Creation and Processing--> Ambient Occlusion per Vertex.

    Free

  14. Version 1.0.0

    6 downloads

    These are the pubic bones of a 59yo female (ABD_LYMPH_006) from the CT Lymph Nodes Collection of TCIA, which is made available under Creative Commons Attribution 3.0 Unported License. I modeled these with the Grayscale Model Maker in 3D Slicer (see tutorial pt. 1), hollowed with Meshlab, fixed for printing with Meshmixer. "ABD006_PS_F59_1mm.stl" has a wall thickness of 1 mm to minimize material volume for printing with powder-based printers (for example, through Shapeways)--I would recommend white "strong and flexible plastic." "ABD006_PS_F59_hollow.stl" is hollow with filled holes--this is what I would use for filament printers, but you could use this to print a solid model through Shapeways. I also cut the bottoms flat on both so they can be oriented upright to print--I would not recommend printing with the symphyseal face up because the layering process will impose ridges. If you want to split the left and right halves, in Meshlab use the filter "Split in Connected Components"--once split, each "layer" can be exported as separate .stl files. The "Plane Cut" tool in Meshmixer can be used to further cut the models if you want smaller segments. If you would like to add shading to the 3D models to enhance viewing of the symphyseal face, in Meshlab apply the Filter--> Color Creation and Processing--> Ambient Occlusion per Vertex.

    Free

  15. Version 1.0.0

    6 downloads

    These are the pubic bones of a 41yo female (ABD_LYMPH_005) from the CT Lymph Nodes Collection of TCIA, which is made available under Creative Commons Attribution 3.0 Unported License. I modeled these with the Grayscale Model Maker in 3D Slicer (see tutorial pt. 1), hollowed with Meshlab, fixed for printing with Meshmixer. "ABD005_PS_F41_1mm.stl" has a wall thickness of 1 mm to minimize material volume for printing with powder-based printers (for example, through Shapeways)--I would recommend white "strong and flexible plastic." "ABD005_PS_F41_hollow.stl" is hollow with filled holes--this is what I would use for filament printers, but you could use this to print a solid model through Shapeways. I also cut the bottoms flat on both so they can be oriented upright to print--I would not recommend printing with the symphyseal face up because the layering process will impose ridges. If you want to split the left and right halves, in Meshlab use the filter "Split in Connected Components"--once split, each "layer" can be exported as separate .stl files. The "Plane Cut" tool in Meshmixer can be used to further cut the models if you want smaller segments. If you would like to add shading to the 3D models to enhance viewing of the symphyseal face, in Meshlab apply the Filter--> Color Creation and Processing--> Ambient Occlusion per Vertex.

    Free

  16. Version 1.0.0

    5 downloads

    These are the pubic bones of a 60yo male (ABD_LYMPH_004) from the CT Lymph Nodes Collection of TCIA, which is made available under Creative Commons Attribution 3.0 Unported License. I modeled these with the Grayscale Model Maker in 3D Slicer (see tutorial pt. 1), hollowed with Meshlab, fixed for printing with Meshmixer. "ABD004_PS_M60_LR_1mm_cut.stl" has a wall thickness of 1 mm to minimize material volume for printing with powder-based printers (for example, through Shapeways)--I would recommend white "strong and flexible plastic." "ABD_004_PS_M60_flat2.stl" is hollow with filled holes--this is what I would use for filament printers, but you could use this to print a solid model through Shapeways. I also cut the bottoms flat on both so they can be oriented upright to print--I would not recommend printing with the symphyseal face up because the layering process will impose ridges. I've included a screenshot showing how to split the left and right halves in Meshlab using the filter "Split in Connected Components"--once split, each "layer" can be exported as separate .stl files. The "Plane Cut" tool in Meshmixer can be used to further cut the models if you want smaller segments. If you would like to add shading to the 3D models to enhance viewing of the symphyseal face, in Meshlab apply the Filter--> Color Creation and Processing--> Ambient Occlusion per Vertex.

    Free

  17. Terrie S

    3D Bones for Anthropology

    Pictures of 3D printed bones for forensic anthropology.
  18. From the album: 3D Bones for Anthropology

    Experimenting with printing a nose reference. I printed with the posterior surface on the bed and left the supports between the skin and bone pieces.
  19. From the album: 3D Bones for Anthropology

    Reference noses I printed from Shapeways using "elastic plastic," a material available to makers only. I wanted to see how well skin looked in this material and I like it!
  20. From the album: 3D Bones for Anthropology

    Skull fragments that I scanned with a NextEngine and printed.
  21. From the album: 3D Bones for Anthropology

    Fetal skull. Skull fragments that I scanned with a NextEngine and printed.
  22. From the album: 3D Bones for Anthropology

    3D printed craniofacial reference with soft tissue. We are hoping to generate a collection of reference features for forensic facial approximation workshops.
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