I welded my Items but when moved it falls APART!?

I welded all my Items with simple script

for i,v in pairs(script.Parent:GetChildren()) do
	if v:IsA("BasePart") or v:IsA("UnionOperation") then
		
		local handle = script.Parent:WaitForChild("Handle")
		local weild = Instance.new("Weld",v)
	 weild.Part0 = v
	weild.Part1 = handle
	weild.C0 = v.CFrame:inverse()
	weild.C1 = handle.CFrame:inverse()
	end
end

but when I equip my weapon and use the "zyx" moving tool to move the handle and it Falls right Apart!!!!!!! why is this happening!? is there a way to prevent it from happening and make it stick to the part