US 12,496,769 B2
System and method for performing quality analysis for multidimensional printing
Tomi Kalpio, Turku (FI); and Marko Piira, Halikko (FI)
Assigned to Brinter Oy, Turku (FI)
Filed by Brinter Oy, Turku (FI)
Filed on Sep. 21, 2021, as Appl. No. 17/480,887.
Prior Publication US 2023/0091230 A1, Mar. 23, 2023
Int. Cl. B29C 64/112 (2017.01); B29C 64/124 (2017.01); B29C 64/393 (2017.01); B29C 64/118 (2017.01); B33Y 50/00 (2015.01); B33Y 50/02 (2015.01)
CPC B29C 64/112 (2017.08) [B29C 64/124 (2017.08); B29C 64/393 (2017.08); B29C 64/118 (2017.08); B33Y 50/00 (2014.12); B33Y 50/02 (2014.12)] 8 Claims
OG exemplary drawing
 
1. A method for performing quality analysis for multidimensional printing, the method comprising:
setting up a multidimensional printer, wherein the multidimensional printer comprises a printing head, a printing surface, an axis system and a scale, wherein the scale is arranged to measure weight applied on the printing surface;
defining, in a control unit, a set of parameters for performing quality analysis for multidimensional printing, wherein the control unit is operatively coupled to the multidimensional printer; and
operating the control unit, based on the set of parameters, for:
controlling the printing head to extrude a printing material, to produce a printing object on the printing surface,
obtaining, from a flow meter, an actual density of the printing material, at any of:
a real-time or after a pre-defined interval, while the printing object is being produced;
obtaining, from the scale, the weight of the printing object;
calculating, based on the weight and a flow rate, an obtained density of the printing object;
comparing the obtained density of the printing object with the actual density of the printing material;
wherein the obtained density of the printing object differs from the actual density of the printing material, changing at least one of: a pre-defined density, a pre-defined volume, a pre-defined flow speed, a pre-defined cross-sectional area;
obtaining, from the scale, a weight applied on the printing surface due to the extruding, and storing the weight applied to the printing surface in a memory associated with the control unit,
comparing the weight with a reference weight of the printing object, and
controlling the printing head to stop extrusion of the printing material when the weight is equal to or exceeds the reference weight.