# I like my yo-yos like I like my blood cells... (A Blood Cell, RBC, and Plasm Appreciation Thread) **URL:** \ **Category:** Collectors Corner\ **Created:** [May 14, 2025, 6:52pm UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113 "2025-05-14T18:52:58Z")\ **Posts on this page:** 20\ **Page:** 18
**Author:** ![MarkD](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/markd/32/40845_2.png) [@MarkD](https://forums.yoyoexpert.com/u/MarkD)\ **Post date:** [May 24, 2025, 12:10am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/344 "2025-05-24T00:10:38Z")
> [@pyrotechnic](#): > > After some looking and measuring came across this the bearing seat is a little too big. Thank you for finding this. That’s definitely out of spec - can’t believe I didn’t notice it on any of the ones I disassembled. ---
**Author:** ![anon5341354](https://avatars.discourse-cdn.com/v4/letter/a/3ab097/32.png) [@anon5341354](https://forums.yoyoexpert.com/u/anon5341354)\ **Post date:** [May 24, 2025, 12:18am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/345 "2025-05-24T00:18:10Z")
That is a little wider than it should be, but it shouldn’t be cutting strings. Thats a radiusing issue. ---
**Author:** ![LordKingOf](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/lordkingof/32/599279_2.png) [@LordKingOf](https://forums.yoyoexpert.com/u/LordKingOf)\ **Post date:** [May 24, 2025, 1:57am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/346 "2025-05-24T01:57:29Z")
Anyone have some nylons, not the string, the undergarment, to spare (I don’t sadly) but rubbing nylons over the surface will reveal the snags, trick from guitar set up Might be helpful in finding what the exact problem is ---
**Author:** ![Son-of-Morris](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/son-of-morris/32/250533_2.png) [@Son-of-Morris](https://forums.yoyoexpert.com/u/Son-of-Morris)\ **Post date:** [May 24, 2025, 2:09am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/347 "2025-05-24T02:09:15Z")
> [@LordKingOf](#): > > Anyone have some nylons, not the string The one time I start assuming someone’s talking about string, and I get fooled! 🤣 ---
**Author:** ![LordKingOf](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/lordkingof/32/599279_2.png) [@LordKingOf](https://forums.yoyoexpert.com/u/LordKingOf)\ **Post date:** [May 24, 2025, 2:19am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/348 "2025-05-24T02:19:45Z")
This _is_ HosieryExpert Forums after-all :joy: ---
**Author:** ![MinerJ](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/minerj/32/629515_2.png) [@MinerJ](https://forums.yoyoexpert.com/u/MinerJ)\ **Post date:** [May 24, 2025, 2:34am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/349 "2025-05-24T02:34:38Z")
My red one does this, not not quite as badly as yours. The bearing seat gap in my red one is visually bigger than on the other ones. ---
**Author:** ![MinerJ](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/minerj/32/629515_2.png) [@MinerJ](https://forums.yoyoexpert.com/u/MinerJ)\ **Post date:** [May 24, 2025, 2:35am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/350 "2025-05-24T02:35:27Z")
Of the 1 A grade and 3 B grades I got, only one has this issue. It’s not all of them. ---
**Author:** ![SlowThrow](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/slowthrow/32/307451_2.png) [@SlowThrow](https://forums.yoyoexpert.com/u/SlowThrow)\ **Post date:** [May 24, 2025, 3:16am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/351 "2025-05-24T03:16:31Z")
Here are photos from under my microscope: Opened, removed bearings, no clean ![IMG_5592](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/f/3/c/f3c260c60677d6efac28bb8b49284c5d7781655b.jpeg) ![IMG_5593](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/b/d/c/bdc434bf8d770d46477431503fe98f016085da22.jpeg) ![IMG_5594](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/0/a/c/0ac44d8c6d562f009c4fd0115be3438b7f32fb6a.jpeg) ![IMG_5595](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/2/5/e/25e845d7dc5e89201077ef0aa4de5256c3299522.jpeg) Purple is B, black is A, I’ll update as clean and measure etc Cleaned purple: ![IMG_5596](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/8/1/1/811fdec93e609c5ae93f104a2be15297852c2d46.jpeg) I think I see the issue. There is a bunch of machining debris in the seats, perhaps that’s why they cracked as well, the debris pressed into and split the plastic. It also looks like the outer ring part cut at an inward angle, making an edge that’s cutting the string. I’m gonna clean and examine the rest, and use some tools to deburr and smooth out that knife edge situation. ---
**Author:** ![anon5341354](https://avatars.discourse-cdn.com/v4/letter/a/3ab097/32.png) [@anon5341354](https://forums.yoyoexpert.com/u/anon5341354)\ **Post date:** [May 24, 2025, 3:27am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/352 "2025-05-24T03:27:59Z")
Yeah, that inner radius on the lip around thw bearing is sharp. It shouldn’t be. ---
**Author:** ![WantsLyfe93](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/wantslyfe93/32/608862_2.png) [@WantsLyfe93](https://forums.yoyoexpert.com/u/WantsLyfe93)\ **Post date:** [May 24, 2025, 3:57am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/353 "2025-05-24T03:57:39Z")
I received my red A grade plasm today. It cut the stock string in less than a day of play. I noticed the radius was sharp. However, this yoyo is so much fun, it’s pretty much worth sacrificing a string a day lol :joy: Love the feel. Wonder if I can use some sand paper to smooth it down? ---
**Author:** ![Captrogers](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/captrogers/32/647012_2.png) [@Captrogers](https://forums.yoyoexpert.com/u/Captrogers)\ **Post date:** [May 24, 2025, 3:58am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/354 "2025-05-24T03:58:35Z")
Use some denim see if that works first. ---
**Author:** ![SlowThrow](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/slowthrow/32/307451_2.png) [@SlowThrow](https://forums.yoyoexpert.com/u/SlowThrow)\ **Post date:** [May 24, 2025, 4:28am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/355 "2025-05-24T04:28:34Z")
![IMG_5606](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/c/3/5/c35f9c3ed7cc86b2a269819fdaddd35fa1daf247.jpeg) ![IMG_5602](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/a/2/a/a2a3f4cdba6169534eebc24ad502a81d9a899582.jpeg) ![IMG_5600](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/2/b/0/2b093053cec30bc68844d357561dcca0468a86f2.jpeg) 5 micron sandpaper alone did nothing, I had to scrape/ manually bevel the edge with the back of a jewlers file, and then smooth it over with the sandpaper ![IMG_5603](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/7/0/c/70c92a1cdb78e4931e2fc1cac0a9309a7d25339c.jpeg) And here is some 220 to compare ![IMG_5604](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/d/d/4/dd4154ef365b049000e3c3d9994718adf7f4a125.jpeg) I don’t think that would be controlled enough, however [![](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/f/5/3/f53c9d92af7fe3500aba3ee01592331f8328a4a7.jpeg "Plasm bearing seat cleanup demo") ](https://www.youtube.com/watch?v=eDfWBX2ZAog) Finished product still plays great! ---
**Author:** ![SlowThrow](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/slowthrow/32/307451_2.png) [@SlowThrow](https://forums.yoyoexpert.com/u/SlowThrow)\ **Post date:** [May 24, 2025, 4:32am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/356 "2025-05-24T04:32:25Z")
If anyone would like me to deburr theirs, DM, we can work something out. The patients survived the operation with no lasting complications expected. ![IMG_5612](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/e/7/5/e7599574d6483e253e6707c5c1150d322e384ee7.jpeg) ---
**Author:** ![pyrotechnic](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/pyrotechnic/32/689058_2.png) [@pyrotechnic](https://forums.yoyoexpert.com/u/pyrotechnic)\ **Post date:** [May 24, 2025, 5:54am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/357 "2025-05-24T05:54:22Z")
Before ![1000007566](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/9/2/7/927a19e586ece270f4b37a24f8553a83339e1455.jpeg) After ![1000007567](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/a/4/e/a4e8fe910ce0ef38fa8ff262b11da9cc48b36cab.jpeg) Little bit of time on the lathe ---
**Author:** ![Captrogers](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/captrogers/32/647012_2.png) [@Captrogers](https://forums.yoyoexpert.com/u/Captrogers)\ **Post date:** [May 24, 2025, 6:07am UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/358 "2025-05-24T06:07:21Z")
I love the ingenuity of this group of folks. Thankfully my red a grade seems to not cut string so I’m happy. Haven’t messed with the b grades yet ---
**Author:** ![Adrielecc](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/adrielecc/32/628073_2.png) [@Adrielecc](https://forums.yoyoexpert.com/u/Adrielecc)\ **Post date:** [May 24, 2025, 1:04pm UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/359 "2025-05-24T13:04:02Z")
My type of half swap.. ![IMG_6441](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/0/0/b/00beaa1fcd3a010bda6ac383edc642669c87a500.jpeg) ---
**Author:** ![SlowThrow](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/slowthrow/32/307451_2.png) [@SlowThrow](https://forums.yoyoexpert.com/u/SlowThrow)\ **Post date:** [May 24, 2025, 1:07pm UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/360 "2025-05-24T13:07:23Z")
As I was doing my barbaric scraping and sanding I was literally thinking to myself “Kris is gonna have one of these on a lathe tomorrow” lmao ---
**Author:** ![rkalajian](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/rkalajian/32/672584_2.png) [@rkalajian](https://forums.yoyoexpert.com/u/rkalajian)\ **Post date:** [May 24, 2025, 1:41pm UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/361 "2025-05-24T13:41:23Z")
When does @pyrotechnic NOT have something on the lathe? ---
**Author:** ![pyrotechnic](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/pyrotechnic/32/689058_2.png) [@pyrotechnic](https://forums.yoyoexpert.com/u/pyrotechnic)\ **Post date:** [May 24, 2025, 2:37pm UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/362 "2025-05-24T14:37:53Z")
Tell that to this stack of butterfly’s that I need to mod up ---
**Author:** ![TryCatchThrow](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/trycatchthrow/32/171307_2.png) [@TryCatchThrow](https://forums.yoyoexpert.com/u/TryCatchThrow)\ **Post date:** [May 24, 2025, 2:39pm UTC](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113/363 "2025-05-24T14:39:08Z")
Little combo I’ve been working out starting with the bowling toss to loop element. [Previous page](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113.md?page=17) [Next page](https://forums.yoyoexpert.com/t/i-like-my-yo-yos-like-i-like-my-blood-cells-a-blood-cell-rbc-and-plasm-appreciation-thread/425113.md?page=19)