How do you purge (clean) the head when changing colors or materials? Some material needs to be extruded in order to make sure you get only the new stuff, not remains of the old.satoer wrote:I think the best way to avoid oozing is a single head extruder with two feeds.
When I change filaments I pull out the old and insert new. After that I have to extrude few centimeters to get clean color. Before that I get the old color for a moment, then mix of the two and only after that fresh new filament.