# I need help to build a 2.4 kilograms yoyo **URL:** https://forums.yoyoexpert.com/t/i-need-help-to-build-a-2-4-kilograms-yoyo/421250 **Category:** General Yo-Yo **Created:** [March 19, 2025, 1:54am UTC](https://forums.yoyoexpert.com/t/i-need-help-to-build-a-2-4-kilograms-yoyo/421250 "2025-03-19T01:54:52Z") **Posts on this page:** 1 **Showing post:** 25
### Author: ![SlacKing](https://avatars.discourse-cdn.com/v4/letter/s/5f8ce5/32.png) [@SlacKing](https://forums.yoyoexpert.com/u/SlacKing) #### Post date: [March 20, 2025, 6:38pm UTC](https://forums.yoyoexpert.com/t/i-need-help-to-build-a-2-4-kilograms-yoyo/421250/25 "2025-03-20T18:38:12Z")
@Mei_lito If you’ve never designed a yoyo before, there are some good basics covered in this thread. It won’t specifically apply to tungsten (which will undoubtedly be a different beast to make a full monometal out of), but it might help. I’m interested to see what you come up with. It’s bound to be unique! > [@Yoyo CAD & Prototyping Adventures](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/12): > > Good progress! I think mono-metals are a lot easier to design, especially for a first one, which is why I’m focusing my time on that. I see you also rounded off the edge of the response, which is a good catch. The outer edge of the rim looks sorta sharp - what’s the arc radius there? For anyone else reading, here are some good resources to get started, a youtube tutorial series by Zach Lerner: Lesson 1: [The Guts](https://www.youtube.com/watch?v=7RmFeVW3wSk) Lesson 1a: [Mass Moment of Inertia](https://www.youtube.com/watch?v=gb1UGeYnzwk) Lesson 2: [Design for Performance](https://www.youtube.com/watch?v=nxjcHN893CU) Lesson 3: [L…](https://www.youtube.com/watch?v=GD304FPDwf4) > [@Exmime](#): > > the Sukeban FreeHand Zero More like FreeHand Sub-zero. Indisputable evidence the yoyo was invented as a weapon. --- _[View the full topic](https://forums.yoyoexpert.com/t/i-need-help-to-build-a-2-4-kilograms-yoyo/421250)._