Just wanted to share my X3uder for filament.
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www.thingiverse.com]
It is a RepRap inspired 12VDC Filament extruder, designed so that most parts are printable or readily available in hardware stores. The X3uder is powered by a RepRap controller and 12 VDC power supply that every user has with his 3D printer. It uses 2 x 40 watt 12 volt heating cartridges. The motor consumes between 0.5 and 3 amps, so the typical 15 amp power supply is good enough.
Design is based on different ideas from Lyman's, Filastruder and Filabot extruders.
The idea with this Filament Extruder is that when a user needs to produce some filament, he replaces the cables of his 3D printer heater output and thermistor input, connects 12vdc via a switch to the fan and motor. In this way there is no need for additional PID controllers and power supplies, so it uses what we already have.
