Dune3d: A parametric 3D CAD application

idiotsecant wrote: post #2

Its not often you see 'fillets and chamfers' are tip-line features in the readme for CAD packages. But good on you for building something.

> Its not often you see 'fillets and chamfers' are tip-line features in the readme for CAD packages.

Well the readme states the following:

Solvespace on the other hand gets the workflow part right, but falls short by not importing STEP and the geometry kernel not supporting chamfers and fillets.

So I assume that's where that comes from.

Re: Dune3d: A parametric 3D CAD application

#5

Post by jetter » Mon, Mar 23, 2026, 9:00 PM UTC

Also check out modelrift.com which is based on openscad foundation. See the dynamic customizer which allows to edit any model parameter, re-render and get .stl: https://modelrift.com/models/customizable-liquid-funnel - it works _completely_ in your browser by using WASM

Re: Dune3d: A parametric 3D CAD application

#6

Post by Evidlo » Mon, Mar 23, 2026, 9:05 PM UTC

Some other open source 3D CAD tools:

Code-based

- CadQuery - https://github.com/CadQuery/cadquery/

- build123d - https://github.com/gumyr/build123d

- OpenSCAD - https://openscad.cloud/openscad/

GUI (browser-based)

- Cadmium (abandoned, cool idea) - https://mattferraro.dev/posts/cadmium

Re: Dune3d: A parametric 3D CAD application

#7

Post by RobotToaster » Mon, Mar 23, 2026, 9:07 PM UTC

Evidlo wrote: post #6

Some other open source 3D CAD tools: Code-based - CadQuery - https://github.com/CadQuery/cadquery/ - build123d - https://github.com/gumyr/build123d - OpenSCAD - https://openscad.cloud/openscad/ GUI (browser-based) - Cadmium (abandoned, cool idea) - https://mattferraro.dev/posts/cadmium

Brl-cad https://brlcad.org/

Re: Dune3d: A parametric 3D CAD application

#8

Post by mft_ » Mon, Mar 23, 2026, 9:12 PM UTC

mountainriver wrote: post #3

FreeCAD is the worst. Thanks for building this!

(I seem to be cast in the role of FreeCAD advocate on HN these days, but here goes!)

For years I agreed with you - I tried FreeCAD multiple times, different versions, always sucked.

Then I watched this video [0] and discovered that v1.1 is different - and that it's good enough for solid reliable hobby usage. It's still a touch frustrating in a few areas (text, for example) but I've now switched over to it completely.

[0] https://youtu.be/VEfNRST_3x8

Re: Dune3d: A parametric 3D CAD application

#9

Post by Sakthimm » Mon, Mar 23, 2026, 9:27 PM UTC

idiotsecant wrote: post #2

Its not often you see 'fillets and chamfers' are tip-line features in the readme for CAD packages. But good on you for building something.

Well, implementing fillets and chamfers is no easy task, so it's well deserved to be there.

Source: been there, done that.

Re: Dune3d: A parametric 3D CAD application

#10

Post by elaus » Mon, Mar 23, 2026, 9:41 PM UTC

mft_ wrote: post #8

mountainriver wrote: post #3

FreeCAD is the worst. Thanks for building this!

(I seem to be cast in the role of FreeCAD advocate on HN these days, but here goes!) For years I agreed with you - I tried FreeCAD multiple times, different versions, always sucked. Then I watched this video [0] and discovered that v1.1 is different - and that it's good enough for solid reliable hobby usage. It's still a touch frustrating in a few areas (text, for example) but I've now switched over to it completely.…

I agree. freeCAD has become a tool that I just use without thinking about it. Earlier versions always made me question my choice and try out other software.