Putting item on a player's back

[ldaspp]

You can write your topic however you want, but you need to answer these questions:

1. What do you want to achieve? Keep it simple and clear!
   I want to have a function to put a model on a player’s back
2. What is the issue? Include screenshots / videos if possible!
   All my aproaches have not worked
3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
   I tried cframe, but that ended up glitching the item badly

[Lauri9]

Have you tried using a weld to attach the model on the players back?

Simple example:

game.Players.PlayerAdded:Connect(function(Player: Player)
	Player.CharacterAppearanceLoaded:Connect(function(Character)
		local NewPart = script.Part:Clone()
		NewPart.Massless = true -- To make sure it won't affect movements
		
		local UpperTorso: BasePart = Character:FindFirstChild("UpperTorso")
		NewPart.CFrame = UpperTorso.CFrame:ToWorldSpace(CFrame.new(0,0,(UpperTorso.Size.Z + NewPart.Size.Z)/2))
		
		local WeldConstraint = Instance.new("WeldConstraint")
		WeldConstraint.Part0 = UpperTorso
		WeldConstraint.Part1 = NewPart
		WeldConstraint.Parent = NewPart
		
		NewPart.Parent = Character
	end)
end)

[ldaspp]

whenever I change the rotation, even adding the uppertorso’s rotation, It always points a different direction every time

[Lauri9]

Can you show your script of your attempt? We can try fix it

[ldaspp]

I just do the same thing as you, but slip this in

		backitem.Rotation = v.Character:FindFirstChild("HumanoidRootPart").Rotation + Vector3.new(0,90,0)

backitem is like your newpart

[Lauri9]

Sorry for the late reply You’ll need to include the rotation data in the CFrame calculation like so:

NewPart.CFrame = UpperTorso.CFrame:ToWorldSpace(CFrame.new(0,0,(UpperTorso.Size.Z + NewPart.Size.Z)/2) * CFrame.Angles(0,0,math.rad(90)))
-- math.rad turns Degrees into radians which is what is CFrame.Angles uses in rotation

After that it is just a matter of offsetting things accordingly. Hope this helps!