Tween on PrimaryPart only causes one Part to move

[YellowTripleG (Aaron)]

My code is as follows:

local TweenService = game:GetService("TweenService")

for _, cube in game.Workspace.Lobby.Decor:GetChildren() do
	if cube.name == "Cube" then
		local t1 = {}
		t1.Position = Vector3.new(cube.PrimaryPart.Position.X, cube.PrimaryPart.Position.Y + 5, cube.PrimaryPart.Position.Z)

		local ti1 = TweenInfo.new(2)
		local tw1 = TweenService:Create(cube.PrimaryPart, ti1, t1)

		tw1:Play()

		local t2 = {}
		t2.Position = Vector3.new(cube.PrimaryPart.Position.X, cube.PrimaryPart.Position.Y - 5, cube.PrimaryPart.Position.Z)

		local ti2 = TweenInfo.new(2)
		local tw2 = TweenService:Create(cube.PrimaryPart, ti2, t2)
		tw1:Play()
		tw1.Completed:Connect(function()
			tw2:Play()
		end)

		tw2.Completed:Connect(function()
			tw1:Play()
		end)
	end
end

And this is what the Cube’s tree looks like in studio:

Surely with Outer being welded to the primary part, Inner, the whole cube’s contents would move, no?

[Doomcolp (dxxmed)]

Have you tried tweening the PrimaryPart’s CFrame instead of its position?

Y’know how when you move the HumanoidRootPart’s CFrame [of a character] your whole character moves? It’s the same idea here.

[lV0rd (Tin)]

make sure the other parts are not anchored, also use weldconstaint and not the normal weld as it is deprecated

[YellowTripleG (Aaron)]

that worked, thank you, it actually made a cooler animation as I was able to incorporate animated rotation too!