This is a keychain of Super Mario! The design of the motion mechanism is aimed at achieving a compact size and maintaining the possibility of completely hiding the features within the pipe! This is thanks to the gear ratio of 1.5 > mechanism. I'm a mechanical engineer, and in my free time, I enjoy designing, using household tools, and tinkering with mechanical gadgets. So, if you need specific custom products, you can directly write to me at printingbydani@gmail.com. I also have years of experience in 3D printing, and you can check out my stores on Etsy and eBay

If you want to see all of my complete collection, you can click below to access all of my links: https://linktr.ee/mech3d_printing