Abstract: A system for operating handheld three-dimensional filament extrusion device is provided. The system includes a housing with an inlet and an outlet. A Bowden style mechanism is coupled to the housing and has a motor coupled to a filament engagement mechanism. A filament holder is coupled to the housing and transfers the filament to the Bowden style mechanism. A 3D drawing device defines a pathway that receives filament from the outlet and transfers the filament to a heated section. The drawing device includes a nozzle coupled to the heated section and an actuator. A controller having a processor is responsive to an actuation of the at least one actuator for causing the motor to rotate in a first direction to move the filament through the inlet and outlet to the drawing device and to cause the heated section to at least partially melt the filament moving through the drawing device.