wormdrive dual weel extrusion
thingiverse
To overcome the "digging-in" issue, consider a larger (60-80mm) transport wheel diameter for efficient movement. Sharp cutter blades ensure easy cutting into materials like ABS and PLA while providing excellent grip. A worm drive offers optimal transmission in a compact design. Despite creating this modification some time ago, its effectiveness was evident; however, the regular Ultimaker extruder now uses less material, diminishing the need for an alternative. Nonetheless, shareable files are available for potential use. PLA, particularly soft varieties, could be an intriguing challenge for this blade-based transport system. Witness these concepts in action through the following videos: <http://www.youtube.com/watch?feature=player_embedded&v=A1qRbB6SFG8> and a previous demonstration: <http://www.youtube.com/watch?feature=player_embedded&v=Rwfng8XTXF0>.
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