The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 16, 2024
Filed:
Apr. 17, 2020
Dp Polar Gmbh, Eggenstein-Leopoldshafen, DE;
Hans Mathea, Eggenstein-Leopoldshafen, DE;
3D Systems GmbH, Morfelden-Walldorf, DE;
Abstract
In a method for producing at least one solid-body layer on a support that can be rotated about an axis of rotation, in accordance with predetermined geometry data, an emitter array having a plurality of emitters configured as material-dispensing nozzles is provided, which nozzles are arranged in emitter columns and emitter rows. Emitter columns that are adjacent to one another in the circumferential direction of an axis of rotation are offset from one another, in the expanse direction of the emitter columns, in each instance, in such a manner that the emitters are arranged at different radial distances DA(i) from the axis of rotation. It holds true that: DA(i) DA(i+1). Print dots are assigned to the geometry data, which dots are offset from one another, in a matrix having multiple rows that run next to one another, in such a manner that it holds true that: PA(j)>PA(j+1), wherein PA(j) is the radial distance of the jprint dot Pof the row in question from the axis of rotation. For print dots Pfor which material is supposed to be dispensed onto the support, at least one material portion, in each instance, is dispensed from the emitter Dof the emitter array assigned to the print dot Pin question. Dispensing of the material portions takes place in print cycles in which the emitter array is triggered to dispense material once, in each instance, at a trigger point assigned to the print cycle in question, in each instance, and the support as well as the emitter array are offset relative to one another, from print cycle to print cycle, in each instance, by an angular distance with reference to the axis of rotation. Printing of all the print dots of a row takes place in a number of print cycles that is greater than the number of emitter columns. The print cycle is selected, for each print dot to be printed, in each instance, in such a manner that the angular difference between the rotational position of the trigger point of the print cycle and the rotational position in which the print dot to be printed is arranged with reference to the axis of rotation when the support is positioned at the trigger point relative to the emitter array is not greater, in terms of amount, than half the angular distance between the trigger points.