Thanks for sharing, very nice!

Average power is 3kW for the setup producing 5kg per hour from what I understand. How much power is used for the electrical heating elements? Beside insulation, could waste-heat from cooling the filament be re-used to reduce power consumption, e.g. by using it to pre-heat the pellets in the funnel that feeds the machine (I'm aware that the phase transition will (most likely) require a lot more energy than heating the material to its melting point).

PS: the video was reversed, right?