materials and applications
3D Printed Sand
Prototypes from Prototypical Souls and Quick Sand Casting
Prototype cores is a direct use of sand (silica or Cerabeads) 3D printed, used as a semi-finished product also for the Quick Sand Casting solution, in which, however, the semi-finished product is assembled and then taken to the foundry and converted into a metal piece. The machine prints a figure that is directly delivered to the customer. The figure is always obtained with a “powder”, silica sand for the note.
For foundries or model shops that require smoother and more finished parts, specific for hydraulic or hydraulic applications, the cores are treated with specific zirconium, graphite, aluminosilicate or other based coatings.
The sand is bound by a resin with a printing process similar to the plot that layer by layer, according to a layer by layer construction strategy, creates a very complex shape that is technically called 2.5D, the material replica of the 3D file sent by the customer. 2.5D is an object reproduced by printing a number N of finished layers that constitute the height Z of height. Being infinitesimal, the measurements of the plot in X and Y represent 2 complete dimensions, while being Z composed of a finite number of layers or layers with a finite and fixed thickness for each layer, the Z dimension thus created is counted as 0.5. At the moment there is no solution that allows infinitesimal growth of Z. For prototype cores the layer thickness is 280 microns.