# Need help installing finger spin cups on Duncan Freehand AL

**URL:** https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161
**Category:** Yo-Yo Mods and Maintenance
**Created:** [December 17, 2021, 3:58am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161 "2021-12-17T03:58:06Z")
**Posts on this page:** 12
**Page:** 1

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### Author: ![SwissArmyTenor](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/swissarmytenor/32/7943_2.png) [@SwissArmyTenor](https://forums.yoyoexpert.com/u/SwissArmyTenor)
#### Post date: [December 17, 2021, 3:58am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/1 "2021-12-17T03:58:06Z")

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Just received an aluminum Duncan Freehand along with a pair of finger spin cups (ordered separately).

No instructions came re: how to remove the current caps so I can install the finger spin cups. I tried a narrow wooden dowel inserted into the axle hole in an attempt to press the current caps out from the inside, but that didn’t work - I didn’t want to apply too much pressure in case that was _not_ the method, haha.

The site I purchased from showed no instructions that I could find. I’ve emailed them, but won’t get a response tonight - hoping someone here might know the answer, as I’m anxious to get started. Thanks!

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### Author: ![OhDavidBowie](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/ohdavidbowie/32/149966_2.png) [@OhDavidBowie](https://forums.yoyoexpert.com/u/OhDavidBowie)
#### Post date: [December 17, 2021, 4:08am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/2 "2021-12-17T04:08:54Z")

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A bicycle pump works pretty well for this.

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### Author: ![SwissArmyTenor](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/swissarmytenor/32/7943_2.png) [@SwissArmyTenor](https://forums.yoyoexpert.com/u/SwissArmyTenor)
#### Post date: [December 17, 2021, 4:17am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/3 "2021-12-17T04:17:06Z")

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I’m not able to picture how this would work - with the basketball pump I have, anyway! 🙃

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### Author: ![OhDavidBowie](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/ohdavidbowie/32/149966_2.png) [@OhDavidBowie](https://forums.yoyoexpert.com/u/OhDavidBowie)
#### Post date: [December 17, 2021, 4:19am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/4 "2021-12-17T04:19:17Z")

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So if it has the needle nossle thingy, you can put it in the half that does not have the axle in. You may have to wrap some tap around the nossle to create a seal

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### Author: ![Isaac](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/isaac/32/597931_2.png) [@Isaac](https://forums.yoyoexpert.com/u/Isaac)
#### Post date: [December 17, 2021, 4:22am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/5 "2021-12-17T04:22:22Z")

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[https://www.instagram.com/p/B-815kpBDA6/?utm\_medium=copy\_link](https://www.instagram.com/p/B-815kpBDA6/?utm_medium=copy_link)

[https://www.instagram.com/p/B-\_JpNJBTjr/?utm\_medium=copy\_link](https://www.instagram.com/p/B-_JpNJBTjr/?utm_medium=copy_link)

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### Author: ![SwissArmyTenor](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/swissarmytenor/32/7943_2.png) [@SwissArmyTenor](https://forums.yoyoexpert.com/u/SwissArmyTenor)
#### Post date: [December 17, 2021, 4:22am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/6 "2021-12-17T04:22:22Z")

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edit.

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### Author: ![SwissArmyTenor](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/swissarmytenor/32/7943_2.png) [@SwissArmyTenor](https://forums.yoyoexpert.com/u/SwissArmyTenor)
#### Post date: [December 17, 2021, 4:24am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/7 "2021-12-17T04:24:54Z")

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Ok, thank you everyone! Very clear. Just realized I no longer have my pump, haha.

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### Author: ![Isaac](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/isaac/32/597931_2.png) [@Isaac](https://forums.yoyoexpert.com/u/Isaac)
#### Post date: [December 17, 2021, 4:25am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/8 "2021-12-17T04:25:23Z")

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You can also use an air compressor which should be available to use at most gas stations.

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<div class="post-metadata">

### Author: ![SwissArmyTenor](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/swissarmytenor/32/7943_2.png) [@SwissArmyTenor](https://forums.yoyoexpert.com/u/SwissArmyTenor)
#### Post date: [December 17, 2021, 4:44am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/9 "2021-12-17T04:44:11Z")

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Found an OLD hand pump for a basketball.

Found some Scotch Removeable Mounting Putty to seal where the needle goes into the cup (sticks, but no residue).

Found myself thinking, “This will never work.”

Experimented with angles to try and get things as efficient as possible. “BOOM!”

It worked! Haha, thanks all!

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### Author: ![Mystik](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/mystik/32/83294_2.png) [@Mystik](https://forums.yoyoexpert.com/u/Mystik)
#### Post date: [December 17, 2021, 9:18am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/10 "2021-12-17T09:18:18Z")

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> [@New Duncan FREEHAND ONE AL & Fingerspin Caps!](https://forums.yoyoexpert.com/t/new-duncan-freehand-one-al-fingerspin-caps/332451/13):
>
> How do I get the caps off of my new Freehand One AL without damaging it??? Didn’t @yoyodoc have a video on this?

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### Author: ![FourCorner](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/fourcorner/32/122296_2.png) [@FourCorner](https://forums.yoyoexpert.com/u/FourCorner)
#### Post date: [December 17, 2021, 11:36am UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/11 "2021-12-17T11:36:03Z")

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I know I am a bit late, but I wanted to paste this here as a warning for anyone trying to remove their caps.

> [@New Duncan FREEHAND ONE AL & Fingerspin Caps!](https://forums.yoyoexpert.com/t/new-duncan-freehand-one-al-fingerspin-caps/332451/17):
>
> Ok so I got the caps off with this method, but you need to add ear plugs to the required materials list!!! The first cap came off with such a loud POP that I now have pain in my left ear and it’s ringing (unfortunately I’m not joking or exaggerating). I used earplugs for the second cap. Also, it now vibes like a jackhammer with the fingerspin caps… Edit- tried the procedure again and got most of the vibe out. You should probably consider just installing the fingerspin caps at the factory for…

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<div class="post-metadata">

### Author: ![Isaac](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/isaac/32/597931_2.png) [@Isaac](https://forums.yoyoexpert.com/u/Isaac)
#### Post date: [December 17, 2021, 2:28pm UTC](https://forums.yoyoexpert.com/t/need-help-installing-finger-spin-cups-on-duncan-freehand-al/349161/12 "2021-12-17T14:28:21Z")

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Yes, good to note. I definitely wore earplugs when I took mine off after seeing that. Interestingly enough, one was super loud that definitely required the ear plugs while the other was loud but not dangerously loud. I guess the tolerances are wide enough that some can be on there super tight.
