# how i could open a duncan butterfly? **URL:** \ **Category:** Yo-Yo Mods and Maintenance\ **Created:** [October 3, 2010, 8:24pm UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679 "2010-10-03T20:24:20Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![crocks](https://avatars.discourse-cdn.com/v4/letter/c/d9b06d/32.png) [@crocks](https://forums.yoyoexpert.com/u/crocks)\ **Post date:** [October 3, 2010, 8:24pm UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/1 "2010-10-03T20:24:20Z")
is there any way i could open a duncan butterfly not the vintage one. i tried many methods and it didnt open is there is anyway? ---
**Author:** ![yoyoz1](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yoyoz1/32/388_2.png) [@yoyoz1](https://forums.yoyoexpert.com/u/yoyoz1)\ **Post date:** [October 3, 2010, 10:03pm UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/2 "2010-10-03T22:03:45Z")
After you open it, the yoyo will not close. Here is how: twist and pull the two halves apart with all your force. ---
**Author:** ![j\_lowell9](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/j_lowell9/32/358_2.png) [@j\_lowell9](https://forums.yoyoexpert.com/u/j_lowell9)\ **Post date:** [October 4, 2010, 12:18am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/3 "2010-10-04T00:18:03Z")
Ask someone in your family or a friend stronger than you to rip it apart ---
**Author:** ![Yo\_Yo\_Ma\_X](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yo_yo_ma_x/32/187_2.png) [@Yo\_Yo\_Ma\_X](https://forums.yoyoexpert.com/u/Yo_Yo_Ma_X)\ **Post date:** [October 4, 2010, 2:53am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/4 "2010-10-04T02:53:45Z")
STOP! its hammer time 😃 ---
**Author:** ![Mi1](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/mi1/32/626_2.png) [@Mi1](https://forums.yoyoexpert.com/u/Mi1)\ **Post date:** [October 4, 2010, 4:04am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/5 "2010-10-04T04:04:55Z")
Use a butterfly knife and pry it open one side at a time, then glue it back together when you’re done I suppose. ---
**Author:** ![jhb8426](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jhb8426/32/631_2.png) [@jhb8426](https://forums.yoyoexpert.com/u/jhb8426)\ **Post date:** [October 4, 2010, 4:48am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/6 "2010-10-04T04:48:00Z")
Why do you want to do this? Anyway, the axle is fixed in the shell. To get it apart just twist and pull. As noted above you will need to use some glue to get it back together. A few years back people were doing this to replace the metal axle with a 1/4 inch wooden dowel. Made them play a little nicer. You can remove the caps fairly easily too. There is a small hole at the edge of the cap. You can stick something in there and pry them off. ---
**Author:** ![cameron](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/cameron/32/307_2.png) [@cameron](https://forums.yoyoexpert.com/u/cameron)\ **Post date:** [October 4, 2010, 5:01am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/7 "2010-10-04T05:01:31Z")
> [@jhb8426](#): > > Why do you want to do this? > > Anyway, the axle is fixed in the shell. To get it apart just twist and pull. As noted above you will need to use some glue to get it back together. A few years back people were doing this to replace the metal axle with a 1/4 inch wooden dowel. Made them play a little nicer. You can remove the caps fairly easily too. There is a small hole at the edge of the cap. You can stick something in there and pry them off. The only real reason I can think of would be to mod it and add a real axle and bearing. ---
**Author:** ![jhb8426](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/jhb8426/32/631_2.png) [@jhb8426](https://forums.yoyoexpert.com/u/jhb8426)\ **Post date:** [October 4, 2010, 5:07am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/8 "2010-10-04T05:07:42Z")
> [@Cameron (and his yoyo)](#): > > The only real reason I can think of would be to mod it and add a real axle and bearing. Meaning him no disrespect, but if he has to ask how to get it apart, he’s in no position to do a bearing mod on it. ---
**Author:** ![SaltyShaker](https://avatars.discourse-cdn.com/v4/letter/s/da6949/32.png) [@SaltyShaker](https://forums.yoyoexpert.com/u/SaltyShaker)\ **Post date:** [September 18, 2019, 12:06am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/9 "2019-09-18T00:06:52Z")
I broke the string and i can’t figure out how to get it back on. Help? ---
**Author:** ![twitch77](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/twitch77/32/60219_2.png) [@twitch77](https://forums.yoyoexpert.com/u/twitch77)\ **Post date:** [September 18, 2019, 12:11am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/10 "2019-09-18T00:11:54Z")
You’ll need to get a new string if it’s broken ☹ Here’s a video on how to put strings on: Mod edit: Fixed to use a tutorial video from THIS site rather than a competing site… Thanks > **[YoYoExpert.com - Basics - Yo-Yo String](https://yoyoexpert.com/learn/003-basic-yo-yo-string.php)** > > Learn all about yo-yo string at YoYoExpert.com. [![]( " - YouTube") ](https://www.youtube.com/watch?v=mjle0Ve3oVg) –edit– Thanks JHB for the better video! I wasn’t aware that Andre made one :D. I should’ve looked harder. ---
**Author:** ![SaltyShaker](https://avatars.discourse-cdn.com/v4/letter/s/da6949/32.png) [@SaltyShaker](https://forums.yoyoexpert.com/u/SaltyShaker)\ **Post date:** [September 18, 2019, 10:02am UTC](https://forums.yoyoexpert.com/t/how-i-could-open-a-duncan-butterfly/19679/11 "2019-09-18T10:02:32Z")
Thanks was a lot of help.