3D PRINTER
First Claim
1. A 3D machine tool for the purpose of manufacturing a part comprising:
- a minimum of two controllable motions;
a first motion and a second motion;
a build surface to which the part is directly or indirectly affixed; and
a machine tool head;
wherein the improvement comprises;
the first motion is a rotary motion around a first axis;
the second motion is a rotary motion around a second axis, wherein the second axis is parallel to and offset from the first axis;
wherein the first axis revolves around the second axis;
the build surface is driven in the direction of the first motion and the build surface is normal to the first axis; and
the build surface is rotated about the axis of the second motion;
such that, responsive to the first and second motions, the machine tool head is positionable relative to the build surface over a continuous planar tool range area of the build surface, at a machine tool head distance from the build surface wherein the machine tool head distance is measured normal to the build surface.
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Accused Products
Abstract
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.
40 Citations
25 Claims
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1. A 3D machine tool for the purpose of manufacturing a part comprising:
- a minimum of two controllable motions;
a first motion and a second motion;
a build surface to which the part is directly or indirectly affixed; and
a machine tool head;
wherein the improvement comprises;the first motion is a rotary motion around a first axis; the second motion is a rotary motion around a second axis, wherein the second axis is parallel to and offset from the first axis;
wherein the first axis revolves around the second axis;the build surface is driven in the direction of the first motion and the build surface is normal to the first axis; and the build surface is rotated about the axis of the second motion; such that, responsive to the first and second motions, the machine tool head is positionable relative to the build surface over a continuous planar tool range area of the build surface, at a machine tool head distance from the build surface wherein the machine tool head distance is measured normal to the build surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
- a minimum of two controllable motions;
Specification