Abstract: A method for producing an object by additive manufacturing including receiving in a process chamber a bath of material wherein a surface level of the bath of material defines an object working area, solidifying by a solidifying device a selective layer-part of the material on the surface level, and controlled oxidisation, of waste particles originating from the solidifying of the material, by controlling an oxygen level, such that oxidised waste particles are obtained and ignition of the waste particles is avoided. An apparatus for producing an objet by additive manufacturing.

Abstract: An apparatus for producing an object by additive manufacturing layer by layer in a layer sequence. The apparatus includes a process chamber for receiving a bath of powdered material, a support for positioning the object in relation to a surface level of the bath of powdered material, a solidifying device for solidifying a selective layer-part of the powdered material, and a control unit for adjusting for individual layers in the layer sequence, a setting of at least one process parameter, during the manufacture of the object. A method, performed by the apparatus, including the step of adjusting, by the control unit, for individual layers in the layer sequence, the setting of at least one process parameter, during the manufacture of the object.

Abstract: Method for producing an object by means of additive manufacturing, wherein said method comprises the steps of: receiving, in a process chamber, a bath of material, wherein a surface level of said bath of material defines an object working area; solidifying, by a solidifying device, a selective layer-part of said material on said surface level; controlled oxidisation, of waste particles originating from said solidifying of said material, by controlling an oxygen level, such that oxidised waste particles are obtained and ignition of said waste particles is avoided. Apparatus for producing an object by means of additive manufacturing.

Abstract: Apparatus for producing an object by means of additive manufacturing, comprising: a process chamber for receiving on a build surface of a build plate a bath of powdered material which can be solidified; a support for positioning said build plate in relation to a surface level of said bath of powdered material; a solidifying device for solidifying a selective part of said material; and a homing device for moving said build surface, by said support, to a home position such that said object can be build on said build surface of said build plate, wherein said homing device comprises a homing member which can be displaced along said build surface of said build plate, wherein said homing device is designed for moving said build surface to said home position until a measured force for displacing said homing member is within a pre-determined range. Method for producing an object by means of additive manufacturing.

Abstract: Apparatus for producing an object by means of additive manufacturing, including a process chamber for receiving on a build surface of a build plate a bath of powdered material which can be solidified, a support for positioning the build plate in relation to a surface level of the bath of material, a solidifying device for solidifying a selective part of the material; and a build plate preparation means for preparation of the build surface of the build plate such that the object can be build on the build surface of the build plate. Method of producing an object by means of additive manufacturing on a build surface of a build plate using such an apparatus.