# Yoyo CAD & Prototyping Adventures

**URL:** <https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [August 7, 2018, 3:40pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547 "2018-08-07T15:40:59Z")\
**Posts on this page:** 1\
**Showing post:** 1905

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**Author:** ![AtomicChessGuy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/atomicchessguy/32/606394_2.png) [@AtomicChessGuy](https://forums.yoyoexpert.com/u/AtomicChessGuy)\
**Post date:** [March 26, 2025, 6:00pm UTC](https://forums.yoyoexpert.com/t/yoyo-cad-prototyping-adventures/291547/1905 "2025-03-26T18:00:14Z")

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There was another thread where someone wanted to make a Tungsten yoyo that was 2.4kgs:

> [@I need help to build a 2.4 kilograms yoyo](https://forums.yoyoexpert.com/t/i-need-help-to-build-a-2-4-kilograms-yoyo/421250):
>
> Hy guys, I am a big fan of yo-yos and bladed weapons. I have a project to make a tungsten alloy yo-yo weighing about 2.4 kilos. I already have the possibility of having the materials, industrial 3D design and the industrial cutting. The problem is that I have no idea what type of yo-yo to choose. I would like a type of yoyo with a large volume of material so that I can increase the weight to the maximum. The ideal size of the yoyo would be 65mm in diameter by 45mm in width. (I can’t do mor…

I made one:

 ![2.4kg_Tungsten_Front](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/8/6/2/862c6bccb4243374f366ba490e0a7b30219c87c3.jpeg)

 ![2.4kg_Tungsten_Isometric](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/5/6/7/5679b68c3f691e47d072caf5debae4dadf2c78e9.jpeg)

 ![image](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/6/7/1/671ec9fb99560cb2995d1be8cdf774b1aeb029db.jpeg)

Turns out it’s really hard to fit that much weight into a yoyo sized object.

Specs:  
Width: 61.5mm  
Diameter: 61.5mm  
Weight: 2.4kg  
Bearing: Size C  
Pads: “Standard” 19mm  
Axle: 14mm  
MMOI(Half): 495861

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