Abstract: The present invention relates to a powder for the preparation of three-dimensional objects comprising, or consisting of, supraparticles (8,9,10) comprising at least a first population of first primary particles, wherein the first primary particles are thermo-plastic polymeric particles, wherein the first primary particles have a volume-averaged median particle diameter of from 10 to 2000 nm; wherein the primary particles are agglomerated and/or partially sintered together to form the supraparticles, and/or wherein the supra-particles have a volume-averaged median particle diameter of from 2.5 to 100 pm.

Abstract: A machine navigation system includes a monitoring mechanism for monitoring configuration of an implement movable between configurations relative to a frame such that a center of mass of the machine moves in response to the moving of the implement. A second monitoring mechanism monitors track speed in the machine. A location of an origin of the track speed varies based upon location of the center of mass. A control unit is coupled with the monitoring mechanisms and structured to determine a control term for compensating for movement of a reference location on the machine relative to the track speed origin. The control unit further calculates velocity based on the track speed and the compensatory control term.

Abstract: A machine navigation system includes a monitoring mechanism for monitoring configuration of an implement movable between configurations relative to a frame such that a center of mass of the machine moves in response to the moving of the implement. A second monitoring mechanism monitors track speed in the machine. A location of an origin of the track speed varies based upon location of the center of mass. A control unit is coupled with the monitoring mechanisms and structured to determine a control term for compensating for movement of a reference location on the machine relative to the track speed origin. The control unit further calculates velocity based on the track speed and the compensatory control term.