# Measurements???

**URL:** <https://forums.yoyoexpert.com/t/measurements/77196>\
**Category:** General Yo-Yo\
**Created:** [October 1, 2015, 5:11pm UTC](https://forums.yoyoexpert.com/t/measurements/77196 "2015-10-01T17:11:36Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Username11](https://avatars.discourse-cdn.com/v4/letter/u/e5b9ba/32.png) [@Username11](https://forums.yoyoexpert.com/u/Username11)\
**Post date:** [October 1, 2015, 5:11pm UTC](https://forums.yoyoexpert.com/t/measurements/77196/1 "2015-10-01T17:11:36Z")

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So my engineering teacher at school has a 3D printer and said he will let me use it to print a yoyo if I can design one. So I wanted to know what’s the measurements for the bearing seat, axle hole, and response groove. If anyone knows these please let me know asap. Also the response can be any size but I would prefer for it to take Duncan response

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**Author:** ![Zorro](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/zorro/32/206266_2.png) [@Zorro](https://forums.yoyoexpert.com/u/Zorro)\
**Post date:** [October 1, 2015, 5:40pm UTC](https://forums.yoyoexpert.com/t/measurements/77196/2 "2015-10-01T17:40:34Z")

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The first part of this video I made should help:

[![](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/0/8/f/08f6b486f477228b7fa75bb33515c82c3c659005.jpeg "How To Make A CAD Yoyo - Part 1") ](https://www.youtube.com/watch?v=drXnSIQAnZA)

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**Author:** ![YoYoExpertGarrett](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyoexpertgarrett/32/1543_2.png) [@YoYoExpertGarrett](https://forums.yoyoexpert.com/u/YoYoExpertGarrett)\
**Post date:** [October 1, 2015, 6:41pm UTC](https://forums.yoyoexpert.com/t/measurements/77196/3 "2015-10-01T18:41:29Z")

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If your school has a 3D printer they probably have a set of calipers you can use as well, just measure whichever yo-yo you want to duplicate. But I wouldn’t recommend 3D printing the bearing seat, it’s just going to cause problems. Designing a simple yo-yo with a spacer for the bearing seat and a nut/bolt axle system is probably your best bet.