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Dev tools · February 14, 2025

OpenSCAD configurable calendar 3D model

I created a highly configurable calendar 3D model using OpenSCAD. This project uses Zeller’s Congruence to automatically adjust the calendar layout for any year. Just change the year in the configurator, and the model updates accordingly. The link contains a little more of the backstory and the downloadable model from a 3rd-party site, additionally the full source code is included in the post. Some highlights: - Implemented date calculations entirely in OpenSCAD (with no built-in date support, which was challenging but fun). - Customizable layout, multi-material printing support, and…

OpenSCAD configurable calendar 3D model launched on February 14, 2025 with 55 votes, #471 of 5,999 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.

Visit chrastecky.dev ↗Alternativestop 8% of February 2025

In plain words

OpenSCAD Configurable Calendar 3D Model is a parametric design tool for creating customized physical calendars using OpenSCAD. It automatically calculates dates for any year using Zeller's Congruence, with no built-in date functions. Users can adjust the year, layout, text translations, and mounting options for fridges or walls, with support for multi-material 3D printing. The full source code and downloadable model are included, making it suitable for makers and 3D printing enthusiasts who want personalized calendar designs.

written from the facts on this page · September 2026

From the sources

I love creating configurable generic models using OpenSCAD, and this is the most complex one I

In the maker’s words, at launch

I created a highly configurable calendar 3D model using OpenSCAD. This project uses Zeller’s Congruence to automatically adjust the calendar layout for any year. Just change the year in the configurator, and the model updates accordingly. The link contains a little more of the backstory and the downloadable model…

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