Ho Ho Ho Now that we approach the last month of this extraordinary year, I’m looking forward to some coding challenges to distract myself and learn something new. And here it comes AdventOfCode. Sign in with any of the social accounts mentioned on their page and start solving the daily puzzles. The programming language doesn’t matter. You can produce the solution with whatever language/tool you like. And don’t forget to check AdventOfCode Subreddit for hints, help, and the solutions others have produced.

TL;DR A friend of mine asked me if I could build something useful with my 3D Printer. He wanted to have something to place his new (and expensive) tamper for ground coffee. I always wanted to design and print something useful on my 3D Printer. And I wanted to learn and use OpenSCAD for a long time. Now I had an excellent reason to learn it. Create the Design I had no experience with OpenSCAD at all when I started this little project.

I like to learn new tools, programming languages, and exciting topics. I recently found the book Genetic Algorithms in Java Basics , and I found the code samples easy enough to understand to “translate” them to a different programming language for the sole purpose of getting some hands-on experience with a new programming language. I’m done with the 2nd chapter of the book and implemented the genetic algorithm described in that chapter to crystal lang.