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公开(公告)号：US10099466B2
公开(公告)日：2018-10-16
申请号：US15822011
申请日：2017-11-24
IPC分类号： B33Y50/02 , B33Y30/00 , B33Y10/00 , B29C64/20 , G05B19/4099 , B25J9/16 , B29C67/00 , B29C64/386 , B29C64/245
摘要： 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.
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公开(公告)号：US20170232680A1
公开(公告)日：2017-08-17
申请号：US15504585
申请日：2015-08-27
IPC分类号： B29C67/00 , G05B19/4099 , B33Y50/02 , B33Y10/00 , B33Y30/00
CPC分类号： B33Y50/02 , B25J9/1679 , B29C64/20 , B29C64/245 , B29C64/386 , B29C64/393 , B33Y10/00 , B33Y30/00 , G05B19/4099 , G05B2219/39456 , G05B2219/49023 , G05B2219/49261
摘要： A 3D printer incorporating two angular axes as an inverted SCARA arm and a vertical, linear Z-axis, is described. A platter on which a 3D object is built is rotated around lambda axis and revolved around a lambda axis. Embodiments are described that: (i) are free of belts, pulleys, cables and other soft drive mechanisms; (ii) are free of any lead-screw compensating devices; (iii) are free of rectangular box frame; (iv) translate X-Y-Z voxel coordinates into an angular coordinate system, optionally in real-time; (v) optimize non-sinusoidal drive waveforms for stepping motors; (vi) deal with special cases at or near the lambda axis; (vii) measure and compensate for non-orthogonal platter skew. Both device and method embodiments are claimed.
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公开(公告)号：US20180117898A1
公开(公告)日：2018-05-03
申请号：US15822011
申请日：2017-11-24
CPC分类号： B33Y50/02 , B25J9/1679 , B29C64/20 , B29C64/245 , B29C64/386 , B29C67/0088 , B33Y10/00 , B33Y30/00 , G05B19/4099 , G05B2219/49023
摘要： 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.
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