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Jern @jernd.bsky.social · 15/09/2026

Yeah, I understand -- maybe this demo will illustrate a bit better. The middle and right hand shapes are identical, just with different viewer settings.

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Jern @jernd.bsky.social · 26/02/2026

Surface modeled this mouse in build123d while roughly following the Shawn Hymel Digikey FreeCAD tutorial youtu.be/HDGdeLWGBns #FreeCADCurves

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Jern @jernd.bsky.social · 19/02/2026

a recursive pattern in build123d, interactive sandbox with code here: jojain.github.io/build123d-sa...

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Jern @jernd.bsky.social · 18/02/2026

#OSHW logo in build123d, interactive online sandbox with code here: jojain.github.io/build123d-sa...

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Jern @jernd.bsky.social · 30/10/2025

Took a stab in build123d, definitely non-trivial!

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Jern @jernd.bsky.social · 27/10/2025

Yep, you can use e.g. the `location_at` operator (shortcut ^) on edges or faces and it will give you info about both location and orientation. It works a bit differently from BOSL2 but the same info is available. Here is a super simple demo, but the same idea scales to any shape of arbitrary form.

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Jern @jernd.bsky.social · 01/10/2025

OK, I generalized it and it now works for even and odd regular polygons. FYI, It is also totally possible to use various transformations to turn these 1D objects into 3D solids (not demonstrated here). Quick and dirty video demo + code:

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Jern @jernd.bsky.social · 01/10/2025

Here's my first attempt at the square, I think should be generalizable to all regular polygons fairly easily but need to think on it a bit. 1D are first class citizens in build123d, which makes this quite a bit easier

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Jern @jernd.bsky.social · 30/09/2025

How about this? I made a few improvements since my last post. I also fused the hexagons together and then offset them to create some tolerance to allow for a better fit. The tolerance I used is quite high just to make it visually obvious.

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Jern @jernd.bsky.social · 30/09/2025

Wondering if build123d could work for you? I watched your video and came up with this approach using construction geometry that act as helpers to place hexagons. This approach should scale very well to more complex hexagonal tilings.

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Jern @jernd.bsky.social · 25/09/2025

Nice, how fast is minkowski these days?

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Jern @jernd.bsky.social · 03/09/2025

Designed and rendered a measuring scoop using #build123d and #blender respectively. The user inputs a target volume for the measuring scoop, and then scipy traverses the search space and finds a scoop with the matching volume. There is a lot of potential in this kind of design optimization approach!

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Jern @jernd.bsky.social · 25/08/2025

FYI, there are CodeCADs out there that supports querying created geometry. Here I add two helices and then section with a plane to find the vertices to connect.

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Jern @jernd.bsky.social · 15/08/2025

That's a neat technique -- hadn't seen that before! I decided to recreate in build123d:

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Jern @jernd.bsky.social · 06/05/2025

yet another CodeCAD option:

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Jern @jernd.bsky.social · 20/02/2025

Felt compelled to re-create a cool recent MangoJelly part

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Jern @jernd.bsky.social · 17/02/2025

Hadn't published it before but here is the complete source code for the 5 interlocking tetrahedra in build123d. I did not spend much time optimizing, and I am sure the rotation angles could be found in an easier way:

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Jern @jernd.bsky.social · 15/02/2025

Interlocking tetrahedra inscribed in a dodecahedron with #build123d

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Jern @jernd.bsky.social · 12/02/2025

Tried it on the less trivial tube-tube case from an OpenSCAD STL import and it failed "Fillet: BRep API command not done"

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Jern @jernd.bsky.social · 12/02/2025

and the build123d source code to create the prior model 2/2

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Jern @jernd.bsky.social · 12/02/2025

ok here is my solution to figure (B) using #build123d with no external libraries (1/2)

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Jern @jernd.bsky.social · 07/02/2025

Following your stuff is making me want to get the 'ole 4x5 cameras back out. As a poor student I used to shoot directly on enlarging paper and develop in homemade caffenol. One such photo:

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Jern @jernd.bsky.social · 06/02/2025

Here it is in build123d, render time is less than 1/10th of a second and only 6 lines for the part. Fillets and chamfers are built-in.

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Jern @jernd.bsky.social · 05/02/2025

@behindthebluemotel.com Thought you might appreciate this old logo I pulled from the inside of an old Kodak Six-20 camera I think.

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Jern @jernd.bsky.social · 24/01/2025

Threw together a very quick and dirty editor / 3D model viewer in nicegui for build123d using ocp_vscode and codemirror. Lots of potential as a model configurator too! Video demo:

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Jern @jernd.bsky.social · 15/01/2025

modeled this compound of five interlocked tetrahedra using #build123d

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Jern @jernd.bsky.social · 14/01/2025

Source-code for the I-beam knot in #build123d 2/2

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Jern @jernd.bsky.social · 20/12/2024

Reworked your code to an equivalent version in build123d:

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