An apparatus for heating three-dimensional printing filaments comprising a heating chamber including an insulation lining and spool holders mounted at a base of the heating chamber, a heater fan assembly mounted above the heating chamber, wherein the heater fan assembly comprises a powered fan and heater configured to heat air and circulate the heated air to the heating chamber, and a diverter situated between the heater fan assembly and the heating chamber, wherein the diverter splits and directs the heated air to the heating chamber through a pair of channels. The apparatus further comprising a plurality of exhaust ports at top sidewall portions and bottom sidewall portions of the heating chamber, wherein the plurality of exhaust ports allowing the heated air to escape from the heating chamber, and fitting adapters comprising apertures that allow filament material to be dispensed from the heating chamber.

The present invention relates to an electrode mounting unit comprising: a mounting member comprising a horizontal plate, a vertical plate disposed on a top surface of the horizontal plate, and a shaft which is fixed to the vertical plate and into which an electrode roll is fitted to be mounted; and an unwinding prevention member disposed between the electrode wound around the electrode roll and the horizontal plate to support the electrode wound around the electrode roll so as to prevent the electrode wound around the electrode roll from being unwound.

The present invention relates to an electrode mounting unit comprising: a mounting member comprising a horizontal plate, a vertical plate disposed on a top surface of the horizontal plate, and a shaft which is fixed to the vertical plate and into which an electrode roll is fitted to be mounted; and an unwinding prevention member disposed between the electrode wound around the electrode roll and the horizontal plate to support the electrode wound around the electrode roll so as to prevent the electrode wound around the electrode roll from being unwound.

An apparatus for heating three-dimensional printing filaments comprising a heating chamber including an insulation lining and spool holders mounted at a base of the heating chamber, a heater fan assembly mounted above the heating chamber, wherein the heater fan assembly comprises a powered fan and heater configured to heat air and circulate the heated air to the heating chamber, and a diverter situated between the heater fan assembly and the heating chamber, wherein the diverter splits and directs the heated air to the heating chamber through a pair of channels. The apparatus further comprising a plurality of exhaust ports at top sidewall portions and bottom sidewall portions of the heating chamber, wherein the plurality of exhaust ports allowing the heated air to escape from the heating chamber, and fitting adapters comprising apertures that allow filament material to be dispensed from the heating chamber.

An apparatus for heating three-dimensional printing filaments comprising a heating chamber including an insulation lining and spool holders mounted at a base of the heating chamber, a heater fan assembly mounted above the heating chamber, wherein the heater fan assembly comprises a powered fan and heater configured to heat air and circulate the heated air to the heating chamber, and a diverter situated between the heater fan assembly and the heating chamber, wherein the diverter splits and directs the heated air to the heating chamber through a pair of channels. The apparatus further comprising a plurality of exhaust ports at top sidewall portions and bottom sidewall portions of the heating chamber, wherein the plurality of exhaust ports allowing the heated air to escape from the heating chamber, and fitting adapters comprising apertures that allow filament material to be dispensed from the heating chamber.