A Nema14 compact dual drive geared extruder
Release status: experimental
| Description | A dual drive geared extruder made with a Nema14 motor.
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Introduction
The Flow Rate of an extruder is one of the main issues to reach high print speeds. Trying to push the limits of flow rate in direct-drive extruders leads to motor stall or filament smashing. A geared extruder, as Wade's, increases the torque available to the hobbed drive. The motor is less prone to stall, but smashing filament is still an issue. With two hobbed drivers pushing the filament, the force is distributed over larger area, so I started to try some projects that use dual drivers extrusion. Up to now I found two designs of double-drive extruders that work nicely, but I decided to develop another one with minor changes. This project describes a geared dual drive made with savaged gears from an old laser printer.
