Rope Pushing eLastic Mod for Wanhao Duplicator i3 - 3 Series Extruder

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Printing soft TPE filament was a challenge on my Wanhao Duplicator i3. The elastic filament would escape the filament channel and stop extruding. This replacement body has a tight fitting channel that actually mates with the idler wheel, leaving no room for the elastic filament to escape. Print in the orientation provided for best results and redrill the filament channel to 2mm. You have the openscad file and it's a culsomizer if you need to tweak the part a bit for your particular 3 series extruder. Note: TPE filament has a tendency to grab onto dirt. Keep it clean. Also, I think it kind of breaks down when at high temperature. I clean the nozzle before long prints with PLA atomic pulls. Also, I turned off retraction because the advice on the forum. Thanks! Music wire poke out. I stick a thin piece if thin steel wire through the nozzle and it helps. Atomic Pull: Heat the nozzle. Manually push through PLA filament so it squirts out most of the garbage. Let cool to 85C or by experience. Slowly and smoothly pull the PLA from the nozzle. It should stretch and pull a plug of plastic out of the extruder nozzle. The tip should look pointy like a little mold of the tip of the nozzle and dirty plastic may be visible. Do it enough times until you think the nozzle is clean. It helps to use a different color Good Luck