Disclaimer: I am not responsible for any damage done to your yoyos by following this guide. This is based on my personal experience and is intended for educational purposes only. Should you follow this guide please be careful and use common sense.
Warning: This method is irreversible.
How it works: Re-aligning yoyo halves to reduce as much vibe as possible.
It may not seem like it but vibe usually has something to do with yoyo halves not aligned perfectly. It can be because of high pressure between the soft aluminum vs steel bearing further causing warp or wear on the bearing seat, or slight machining imperfections. However it must be noted that with loose bearing post or simply bad machining you can’t expect it to be totally smooth with this method.
Note: To avoid misunderstanding, as I know bearing seat is the small raised part on the yoyo half that got pressed by the bearing, and bearing post is the part that is really tight on some yoyos making it hard to remove. Seat is where the bearing sits, and post is the part that is “hugged” by the bearing.
What you need:
- Vibey metal or plastic yoyos that have bearing seat.
- Sharp small screwdriver, or something similar that can be used to scrape aluminum/plastic but strong enough not to break easily.
- Board marker, pencil, chalk, or anything that can be used to write marks on the yoyo (depending of the color of the yoyo), it should be easily cleanable.
- Tissue to clean up dust.
- Throw the yoyo down, use your nail to reduce the “throw vibe” as much as possible.
- Write marks on the yoyo inner part. You will need to do it on both sides with the same amount, like if you mark one half in two seconds, mark the other half in two seconds too.
- Now, pay attention to the marks, if it has longer curves, that means this half is more aligned (which means better) than the one with shorter curves. Shorter curves means worse half.
More explanation to this, when the yoyo halves are misaligned it is barely noticeable for human eyes, that is why we need something to determine where the halves are bent, by using markers. These marks is exactly where the yoyo halves “get the closest to each other”, which means we need to remove some materials on the opposite side to straighten it up.
- This is the riskiest part, carefully scrape the bearing seat on the opposite side of the marks using a sharp screwdriver, leaving about 90 degrees of the unscraped part that is facing the marks. Depending on how bad the half is, you may want to scrape a little deeper (be careful do it a little at a time). If the bearing post is really tight you may want to scrape or sand the bearing post a bit on the same side of the marks.
Note: You will only need to scrape on the part that is touching the bearing.
- Clean the dust thoroughly, test, repeat if necessary. Do not aim for “truer curves”, just get it smoother to an acceptable level (unless of course if you are more obsessed than me).
That’s all there is to it.