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:
Oct. 16, 2018
Filed:
Nov. 24, 2017
Simen Svale Skogsrud, Oslo, NO;
Thomas Boe-wiegaard, Easton, CT (US);
Even Westvang, Oslo, NO;
Alexandre Chappel, Oslo, NO;
Hans Fosker, Oslo, NO;
Simen Svale Skogsrud, Oslo, NO;
Thomas Boe-Wiegaard, Easton, CT (US);
Even Westvang, Oslo, NO;
Alexandre Chappel, Oslo, NO;
Hans Fosker, Oslo, NO;
Polarworks, AS, Oslo, NO;
Abstract
A machine tool incorporating two angular axes as an inverted SCARA arm and a vertical, linear Z-axis, is described. A build surface on which a 3D object may be additively built is rotated around a lambda axis and also revolved around a theta axis. Embodiments are described that: (i) are free of belts, pulleys, cables and other soft drive mechanisms; (ii) place all three axis motors below a base plate; (iii) direct drive the build surface from shafts of a lambda and theta motor; (iv) are free of a rectangular box frame; (v) use angle sensors mounted directly on motor drive shafts; (vi) measure and compensate for build surface skew; (vii) incorporate a single element for both Z-axis support and a bearing surface. Both device and method embodiments are claimed.