I bought a plastic grind machine from ebay for $15 new. Not bad of a deal, huh? Well, anyhow i got it in yesterday and i immediately noticed this really weird problem that i havent seen in a long time. The string kept getting stuck in between the bearing and the metal spacers. This would cause the string to snap shortly after as well as causing the yoyo to come back to my hand abruptly. I would then have to unscrew the yoyo halves and undo this problem or get another string. This problem occured enough that i ended up snapping 4 strings in just 5 minutes.
I tried pushing the bearing in more until i heard a clicking sound, but that didnt work at all. I tried to tighten the yoyo even more, but that didnt work out at all. I ended up banging up the yoyo a little because the first time the string snapped on me, it hit a wall pretty hard. Its still smooth but theres some physical damage done.
i had a beysick with the string cutting problem, but the solution was to wear down the bearing seat walls down with a sandpaper. This issue feels the same but isnt. Any feedback would be great to hear.