Model Tween | ROBLOX Studio Tutorial

local tweenservice = game:GetService("TweenService")

local primary = script.Parent.PrimaryPart

while true do
    tweenservice:Create(primary, TweenInfo.new(1,Enum.EasingStyle.Sine,Enum.EasingDirection.InOut),{CFrame = primary.CFrame * CFrame.new(primary.Size.X + .1,0,0)}):Play()
    wait(1)
end