3 Example Questions votes newest recent 03D Printing and Rapid Prototyping: The change of direction - that is the acceleration - of the extruder head seems to be very violent. Is this a problem? 03D Printing and Rapid Prototyping: How do I control the amount of material extruded? 03D Printing and Rapid Prototyping: My printer extrudes too much material when filling surfaces, and the surface gets “rough” because of bulks of excess material. How can this be solved?