Square net mesh sieves from 0.40 to 5.5 mm

The final printing profile includes 8 sieves ranging from 0.4 mm to 5.5 mm i.e.:

0-40 - 0.60 -1.0 - 1.5 - 2.0 - 2.75 - 4.0 - 5.5 mm. 

Each sieve has a square mesh net obtained by the use of “modifiers” and different percentage of “Grid” infill. The Infill percentage (D) and the dimension of square mesh (LM) have been estimated (for details see  my prevoious published models V1 and V2 on Maker World) and the relationship between infill percentage (D)  and dimension of square mesh (LM) are summarized in the following figure:

The sieves were designed to be assembled and blocked by mean of plastic bolts (nuts and screws) . The length of the screws is designed to assemble 5 sieves together with the lid and bottom, but nothing prevents shortening it by cutting the screw to the desired length using the "CUT" tool in Bambu Studio (avoid resizing). The included shorter screws are suitable for assembling 2 sieves + bottom + lid.

The method of using modifiers to rapidly create a square-mesh “GRID” with reasonably accurate mesh apertures appears reliable and reproducible. Achievable aperture sizes range from 0.4 mm (71% infill) to approximately 5-6 mm (12%-11% infill); infill values (D) below 11% are poorly predictive of the actual printed square mesh size, while values >71% result in distorted and/or occluded square meshes.