These are some key things to keep in mind when throwing the floater (knuckleball):
Throw the floater with fastball mechanics. This is a key factor when throwing the knuckleball. Throwing it with fastball mechanics allows more velocity on the ball. Without this velocity it’ll be slow as a snail, or it won’t get to its intended target. Of course, you don’t throw it like a fastball; you keep your wrist stiff and push off with your fingers.
Throw it with your fingertips, not your knuckles. A lot of tutorials want you to use your knuckles when throwing the floater. Throwing a floater is hard enough, so why make it harder with your knuckles? Throwing it with your knuckles may be natural for a few, but not many. Using your fingertips instead of your knuckles will help keep the rotation count down.
Keep your wrist stiff and push off the ball with your fingertips. I have to stress this a lot to other players when they first try it. Some of them try to literally ‘push’ it towards me, or throw it with a floppy wrist. If you tried to push it towards the target, it’s not your fault. Those tutorials are the reason why so many people have such a hard time throwing this pitch. Always think fastball when throwing the floater, but always keep your wrist stiff and push off with your fingertips.
Throw the floater (knuckleball) with fastball mechanics. When throwing it, keep your wrist stiff, and push off with your fingertips. Always use your fingertips, and not your knuckles when throwing the floater.
Any thoughts or ideas? I apologize for the long post (read the TL;DR for a shorter version), but I wanted to get some key ideas out there.