A gauge for checking the tolerance of a manufactured tube having at least one bend therein is digitally manufactured layer-by-layer using an additive manufacturing machine. Accordingly, the ambient temperature is sensed by the temperature control circuit and is fed back to control the rotation rate of the motor. At least one electrically conductive element and the electrically resistive portion are arranged such that they are at least partially in contact with the aerosol-forming substrate. Each second sidewall includes a plurality of bevels having a top portion and a bottom portion. They are useful in therapy, in particular in the management of pain. The tension indicator is configured for placement between a cardiac support device and the epicardial surface to determine the pressure exerted by the device on the epicardial surface.