Fast Cast is an open source module for raycasting projectiles. In my case, I am making a throwing knife which should rotate while moving. However, I can’t find where the part CFrame is being set in FastCast. If anyone knows where this is being done in a loop (or however it’s being done), please let me know. I have tried using AngularVelocity and AssembleAngularVelocity and BodyAngularVelocity, all of which have failed. I am assuming this is because the CFrame is being set in a loop so no physics really apply. I am looking for this loop so I can change the rotation of the knife manually in that loop. Thanks!