Butterfly knife v2 (free movement)

Huge Shoutout to 左狗拳 (@user_3465698272) for providing this amazing model, but it has a major flaw which I fix in this remix: If you want to actually use the butterfly and flip it around, one side of the handle always touches the upper pin of the blade when closing the knife. This creates enough friction to interrupt a smooth movement - very annoying when doing tricks with it.For a simple fix, I just made the upper pin on the blade a bit smaller so that the handle doesn't touch it anymor