Patent ID: 11865778
Assignee: JABIL INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 7:
8. An additive manufacturing device, comprising:
a platform being translatable in a first extrusion output direction to receive a filament in a plurality of successive layers;
a printhead being translatable in second and third directions, each being orthogonal to one another and to the first extrusion output direction, the printhead comprising:
a nozzle having an elongated body in which is provided a melt zone, wherein the filament is fed into, and heated in, the melt zone, and is extruded from an end of the nozzle;
first and second hobs forming a filament feed channel there between that is axially aligned to the melt zone;
a first and second plurality of teeth, having an adjustable shim therebetween, offset in relation to one another, and extending outwardly around a circumference of the first hob to engage the filament in the filament feed channel; and
wherein the second hob moves between a first position and at least a second position relative to the first hob responsive to a manually-applied biasing force.