I think the plastic tips may be nylon? Neither machine nor sheet metal screws seem to fit. It doesn’t look like a wood screw.
I think I have discovered that the tips are actually shipped unthreaded and you dig in the threads on first insertion. So my sheet metal screws do work, while being just a touch long.
I was going to have to print spacers anyway. Now they will just need to be double thick.
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Not sure how nec the screws are, it looks like all they do is add a little more pressure by very slightly fattening the outside diameter. The tips I have replaced were very hard to push in, I don’t think they even needed the additional screw.
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Yeah. I think you’re right. The screw causes the material surrounding it to expand a bit and sort of pressure fit in the hole.
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This is true but mine have spacers on the other side holding the tip in place as well.
I am attempting to repurpose the tips into printed tops, and the screw and spacer will be structurally necessary.
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Try asking Yoyo Factory for a Short Circuit screw size.
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If that’s bigger than mine, I wanna see it….
Oh wait 
But fr. I like big tops and I can not lie
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It is. This one is 75mm tall and 64ish mm diameter.
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Learning inside Sun
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My newest top. I’ve been enjoying the Imperial for indoor play, so I adjusted the design to a similar size and weight. This one is printed in one shot in TPU, tip and all. The tip is solid, the body is largely hollow with thick walls at the thick parts.
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That looks amazing!!
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The twins. My first integrated tip top broke on day one 
. The white top is a new integrated tip top and I’m going to keep playing it to see if it holds up. I like the size a lot though so the green is a Short Circuit tipped version.
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Last try on an integrated tip top. This one I opened a pilot hole in the tip and drove a sheet metal screw into it. It should reinforce it.
We’ll see if it lasts the day 
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That’s a smooth spinner for sure.
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A little spin time
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Playing my many tops.
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Also playing with @TryCatchThrow ‘s spin tops
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