I have a bit of a strange application for a Lulzbot Mini: I would like to print viscous liquid cellulose through the classic Mini Tool Head v.2. In order to do this, I’ve made a few hardware modifications, including the installation of tubing and pumps in place of plastic filament. (I’ve printed parts to turn the gear which latches on to filament in order to force it into the heated nozzle assembly into a roller wheel pump.) However, in both Cura and Matter Control, whenever I do a dry run, I find that extrusion is prohibited because the tool head is at room temperature. For ordinary plastic filament, this is a great safety feature. For a viscous fluid that will boil above 100 C, this is a terrible feature. How do I disable the low-temperature tool head exception? Is there some setting in the control/slicing software or is this a firmware issue?