Has anyone successfully ran and printed with 1.75mm Ninja Flex TPE filament through their SeeMeCNC EZstruder? I'm using a Printrbot J-head, but the EZstruder drive cant push the TPE filament through the nozzle, it just ends up slipping outside of the hobbed gear eventually jamming the extruder drive. The furthest I've gotten is where the filament will reach the top of the J-head but the filament is not stiff enough for the drive to down.
Any thoughts??