3d printing system

A three dimensional printing system comprising:

• a cement source adapted to supply a material;
• a first extruder adapted to extrude the material to form a first layer, the first extruder being in fluid communication with the cement source, and adapted to receive the material from the cement source;
• and
• at least one second extruder adapted to extrude the material to form at least one second layer over the first layer, the at least one second extruder being in fluid communication with the cement source, and adapted to receive the material from the cement source;
• wherein each of the first extruder and the at least one second extruder being placed in a series configuration with each other, and the first extruder and the at least one second extruder are adapted to work in collaboration, such that the first extruder and the at least one second extruder move simultaneously and the at least one second layer is formed over the first layer after a delay, wherein the delay is proportional to a rate of motion of the first extruder or the at least one second extruder, a rate of solidification of the material, as-extruded surface tension, and inherent integrity of the material.