Python 3D Printing Guide: Make STL Files From Masks

This video shows how to take a 3D numpy mask of 1's and 0's and turn it into a corresponding STL file that can be 3D printed or viewed using a 3D viewer on your computer.
NumPy Meshgrid Tutorial:
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[@cooperbarry2162]

Thank you for the great video! It was instrumental for me to 3D print antenna and array beam patterns.
I found a way to smooth the stl instead of getting a "blocky" shape without having to resort to smaller dimensional spacing. Take the 3D mask array, cast it to single, and do a Gaussian blur (e.g., scipy.ndimage.filters.gaussian_filter). The larger the sigma value in the Gaussian blur, the smoother the surface will be but at cost of losing small and sharp features. (The Gaussian blur is low-pass filtering the image.) The marching cubes algorithm will then interpret values on [0,1] as a smooth surface, whereas if it were a bool mask on {0,1}, the marching cubes algorithm makes a blocky surface with sharp, 90-deg corners between pixels.

[@fedyasemenov8236]

Dude you are legit genius! Such a complex topic explained with such detail and clarity. The sign of a true master. Understanding this made me feel good about myself. And you are the one who made me understand it.
Thank you so much 🙏. Please keeps it up!

[@varunahlawat9013]

Ohhhhhhhhhh, I'm a beginner and physics enthusiast. This made me a fan

[@Fuxx90]

i have a friend, who got a small fracture in his elbow. He printed out the scans of his elbow similarly to this method here. First time I actually found 3D printing kinda useful.

[@rosealsendi2893]

Thanks for the great video! Really impressed with your python & physics content.
I have a recommendation for a future python video; I think it'd be great if you make a plotly tutorial, because it's a very useful library and you've used it before in your physics videos. Also because your library tutorials include many realistic and useful examples especially for physicists.

[@4001Jester]

Very cool topic! I’m impressed by how you present new (to me) topics and techniques in a clear and digestible fashion.
Are you interested in making videos on finite element analysis, and do you think this video’s topic would be applicable to FEA?

[@tiddlywinks497]

Very nice! I use .stl files daily from material imaging, so it's cool to be able to understand the process now.

[@JerryJess-f2h]

I was quite confused when going through Numpy-stl documentation... So a big thank you for this video!
For those who wonder how to smooth the 3d object, modify as follows:
x=y=np.linspace(-1,1,100)
z=np.linspace(0,0.5,100)
to
x=y=np.linspace(-1,1,500)
z=np.linspace(0,0.5,500) it's not rocket science but I hope it helps!

[@noahmcallister3597]

Great video! Have you heard of the program called MeshLab? I'm fairly certain it has all the capabilities of what you are doing here as a GUI, as well as Python bindings. I've used the Python API for procedurally generating and decimating meshes for a research project; it was super easy to use. Thanks again!

[@MrPSolver]

Never heard of it, no! But I'll check it out. Sounds like the sort of stuff I might need!

[@TheBarryLight]

Now I know what I will do on the next weekend :D

[@erikanderson1402]

Cadquery is also a great package for this kind of thing

[@mrmaple]

Thanks for this. I've done marching cubes and 3d printing in the past, but never with numpy! Great stuff. Do you ever use VTK / ITK for visualization and manipulation, or are they less relevant these days?

[@MrPSolver]

I use SimpleITK for some image processing/alignment in python ya!

[@nicholasmetsavaht7663]

Great video! Can I have more than one function to define the object, like from 0

[@MinerMovie]

This video was great, helped me a lot with a project I'm working on. One thing, it would be nice to have the code in the video somewhere

[@CurrentElectrical]

th-cam.com/video/K-8c-S1dpLU/w-d-xo.html

[@goutham94]

Love your look 🔥

[@igorbrenno1459]

I love you, brow. Thanksss...so much!

[@kleeishere8045]

Great video loved it!

[@pile333]

Have you physically printed it?

[@pile333]

Cool.

[@thebestofenglish-movies]

thank you for this video

[@Guillo1499]

This is very cool!

[@Ddaddyyeet]

just bored man thanks for this video

[@НаталіяЗабродська-ь8м]

thanks!

[@russelldicken9930]

you've not come across democratiz3D?

[@MrPSolver]

Thank you for sharing this! I just sent to my research group (I'm sure somebody will require something like this at some point)

[@stutyapatwal]

Bored from coding come here!!

[@melvinwalker2692]

Fucking wizard

[@VictorLopez-qb7qr]

First view👍