This is a 3D-printed Spirograph-style drawing tool aka design ruler, which designed to help you create beautiful geometric patterns with ease. The set includes a main ring and several inner gears that trace out smooth, intricate curves when used with a pen or pencil. It’s fun, relaxing, and great for both kids and adults who enjoy creative drawing—also an ideal option for Christmas gift exchanges.
 

The parts are optimized for 3D printing, with clean edges and tight tolerances to ensure the gears rotate smoothly without slipping. You can print the pieces in different colors to make the set more playful, or scale the model up or down depending on your preferred paper size.

I used this fantastic tool to help me make my gears, thanks for Koolm's excellent work.
[https://reurl.cc/aMG5DX](https://reurl.cc/aMG5DX)

And if you have any idea but aren't able to design it yourself, feel free to let me know—I'd be happy to help bring it to real life!