# Failed duncan butterfly mod

**URL:** <https://forums.yoyoexpert.com/t/failed-duncan-butterfly-mod/18858>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [September 7, 2010, 2:45am UTC](https://forums.yoyoexpert.com/t/failed-duncan-butterfly-mod/18858 "2010-09-07T02:45:19Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**Author:** ![dryoyo](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/dryoyo/32/39_2.png) [@dryoyo](https://forums.yoyoexpert.com/u/dryoyo)\
**Post date:** [September 8, 2010, 2:29am UTC](https://forums.yoyoexpert.com/t/failed-duncan-butterfly-mod/18858/11 "2010-09-08T02:29:59Z")

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That reminds me of my first yo-yo, the Yoffy. 33mm gap.

 ![](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/6/6/a/66a9401110182fd87be31fe47ddaa2036ca74c22.jpeg)

 ![](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/e/1/f/e1f7ae335607dfaecd329af1f0bc07f3a81086e7.jpeg)

 ![](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/8/7/2/8724a9c4cf50668c969af937132862ed751b6148.jpeg)

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