Creating a Gridfinity Chocolate Advent Calendar

This week is a bit different as I’m working on a fun year-end blog and doing my regular work, so I’ll share with you how to create an advent calendar:

Normal Advent calendars are boring: so let’s make our own! We’ll combine all our favorite technologies: Gridfinity (for the grid system), 3D printing (for the grid), vacuum molding (for the chocolate), laser cutting (for the frame), and automated paper cutting to create advent calendars that are both beautiful and functional.

Along the way, we’ll cover practical food safety considerations and show how these techniques come together to produce something tasty, nerdy, and gift-worthy:

You can mind the positive for the chocolate mold on MakerWorld:

I also created a 2×2 Gridfinity grid that fits RitterSport:

You can learn how to create QR codes out of chocolate in another video of mine:

I usually post computer/Java-related blog posts, but I hope you also liked this blog post, in which I shared my hobbies.

Author

  • Johannes Bechberger

    Johannes Bechberger is a JVM developer working on profilers and their underlying technology in the SapMachine team at SAP. This includes improvements to async-profiler and its ecosystem, a website to view the different JFR event types, and improvements to the FirefoxProfiler, making it usable in the Java world. His work today comprises many open-source contributions and his blog, where he regularly writes on in-depth profiling and debugging topics. He also works on hello-ebpf, the first eBPF library for Java. His most recent contribution is the new CPU Time Profiler in JDK 25.

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