Method for producing a three-dimensional object

A method for producing a three-dimensional object by successive solidification of layers of a powder material, the method comprising the steps of:

• providing a support;
• providing a preformed base plate having an upper surface for supporting said object;
• removably attaching said base plate to said support;
• providing means for adjusting the elevation of said upper surface;
• applying a layer of said powder material to the upper surface of said base plate;
• solidifying said powder material at points corresponding to a cross-section of said object by irradiation with electromagnetic or particle radiation;
• and
• repeating the applying and solidifying steps for completing the object
• wherein the step of providing said base plate comprises presolidifying an amount of a powder material in forming said base plate.

A method for producing a three-dimensional object by successive solidification of layers of a powder material, the method comprising the steps of:

• providing a support;
• providing a preformed base plate having an upper surface for supporting said object, the upper surface providing adherence for the powder material to form the object;
• removably attaching said base plate to said support;
• providing means for adjusting the elevation of said upper surface;
• applying a layer of said powder material to the upper surface of said base plate;
• solidifying said powder material at points corresponding to a cross-section of said object by irradiation with electromagnetic or particle radiation;
• and
• repeating the applying and solidifying steps for completing the object.

A method for producing a three-dimensional object by successive solidification of layers of a powder material, the method comprising the steps of:

• providing a support;
• providing a preformed base plate having an upper surface for supporting said object;
• removably attaching said base plate to said support;
• providing means for adjusting the elevation of said upper surface;
• applying a layer of said powder material to the upper surface of said base plate;
• solidifying said powder material at points corresponding to a cross-section of said object by irradiation with electromagnetic or particle radiation;
• and repeating the applying and solidifying steps for completing the object wherein the step of providing said base plate comprises presolidifying a layer of powder material as an upper surface for supporting said object and providing adherence for the powder material forming the object.