DISTRIBUTION OF DRIVING PRESSURE ABOUT A FILAMENT'S CIRCUMFERENCE IN AN EXTRUSION DEVICE

摘要

An extrusion device can include a driver operatively coupled with a motor such that the driver is rotated about an axis by operation of the motor. The driver can have a passage positioned such that the axis extends through the passage. The driver can have a filament-engaging member positioned in the passage and configured to engage a filament extending through the passage such that rotation of the driver moves the filament relative to the driver. The driver can be positioned such that a first direction of rotation of the driver urges the filament along the axis toward an outlet. A heater can be configured to melt the filament and can be disposed between the driver and the outlet to receive the filament from the driver.

主权项

1. An extrusion device comprising:
an outlet; a motor; a driver operatively coupled with the motor such that the driver is rotated about an axis by operation of the motor, the driver having a passage extending through the driver along the axis, the axis extending through the passage, the driver comprising a filament-engaging member positioned in the passage and configured to engage a filament extending through the passage such that rotation of the driver moves the filament relative to the driver, the driver positioned such that a first direction of rotation of the driver urges the filament along the axis toward the outlet; a heater configured to melt the filament and disposed between the driver and the outlet to receive the filament from the driver.