How can I move my turret without breaking the weld?

I am moving the base of the turret and it falls over what I want to do (without anchoring it) My turret script follows the mouse click but I cant get the base to move without breaking the weld! Can someone please help?

I made a motor6D script but it isn't working?

local base = script.Parent.Base
local Base = script.Parent.base

if script.Disabled == false then

    local motor = Instance.new("Motor6D")
        motor.C0 = base
        motor.C1 = Base
        motor.Parent = base
        motor.Parent = script.Parent

    local motor2 = Instance.new("Motor6D")
        motor2.C0 = base
        motor2.C1 = Base
        motor2.Parent = base
        motor2.Parent = script.Parent
end