Week 7: 3D Scanning and Mesh Cleaning

Introduction: Week 7: 3D Scanning and Mesh Cleaning

This week, we are going to use some 3D scan phone apps to scan an object, export it as mesh, and clean it in a mesh editing software.

I played with 'display.land' but it takes forever (more than 12 hrs) for my scan to be rendered. So I decided to use the example 'shell' our professor Jennifer Jacob shared with us.

I was close to a cleaned version of it and I saved the project. However, I realized you have to export a mesh of the current model in order to really save it. There is also no editing history for you to track, meaning you can not undo anything. So I had to start over.

Step 1: Heal the Mesh

First I performed a simple heal following this video to clean up the mesh:

Step 2: Remove Structure From the Mesh

There are some bumpy structures I want to remove. So I selected the mesh, and deleted the selection. The resulting mesh leaves a hole in the place I deleted the bump.

Step 3: Clean Up Mesh and Fix the Holes

Then I followed this video to clean up the mesh with hope to fix the hole.

I tried the filter 'close holes' and it worked in Meshlab. However, from this video, I also found Meshmixer very intuitive and interesting.

Step 4: Smoothing and Other Features in Meshmixer

I explored Meshmixer and a life-saving feature is the 'undo' option! I used the brush to smooth out several regions, especially the bottom flat region. Then I tried the stamp tool and made a carved sea star on the shell!

Step 5: 3D Printing

I used tree support just to try it out for some hanging structures. The printing time is about 6 hrs. The final prints look good! Tree support is also easy to peel off.

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    4 Comments

    0
    stejaraiulia
    stejaraiulia

    1 year ago

    The print turned out really nicely! Thanks for also including the tutorials that you followed, I will definitely check those out.

    0
    mengjiazhu
    mengjiazhu

    Reply 1 year ago

    Thank you Stejara!

    0
    soniahashim
    soniahashim

    1 year ago on Step 5

    Mengjia thanks for sharing your work. I really like the stamp effect on this shell and the final print.

    0
    mengjiazhu
    mengjiazhu

    Reply 1 year ago

    Thank you Sonia!