Three-dimensional printer
AssigneeBlueprinter Aps
InventorsAnders Ørnsholt Hartmann, Frederik Walsted Tjellesen
Life of this patent
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Abstract
A printer (106) for building a three-dimensional model by sequential deposition of a plurality of cross-sectional layers by using a thermal print head (1) movable relative to a material bed (102) over a deposited layer. A protective sheet (3) is disposed between the thermal head (1) and deposited layer. Temperature control of the material bed (102) to prevent warping of the model is provided by an independently heatable cover (52, 58) in contact with the surface of the material bed (102) e.g. via the protective sheet (3).
Claims10
A printer for building a three-dimensional model by sequential deposition of a plurality of cross-sectional layers, the printer comprising:
- a material bed;
- a layer depositing mechanism for depositing a layer on the material bed;
- a thermal head movable relative to the material bed over the deposited layer;
- and a protective sheet in direct contact with the thermal head, wherein the thermal head generates thermal energy and comprises an array of selectively activatable heating elements arranged to transfer the thermal energy by conduction through the protective sheet to heat-treat a selectable area of green material in the deposited layer, and wherein the layer depositing mechanism includes a spreading element movable relative to the material bed for spreading a layer of flowable green material on the material bed.
Dependencies are inferred from the claim text.