Individual components that comprise the Ubis 13S Hot End. One of the benefits of the Ubis 13S is the manufacturability due to the easily interchangeable parts. This is a win for Ubis 13S owners because a broken part, i.e. Heater Core, doesn’t necessarily mean that the entire hot end is lost. See below, a diagram of the Ubis 13S components. Click here for the full Ubis 13S User Manual.