Three dimensional printing apparatus
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United States of America Patent
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Jan 2, 2018
Issued Date -
N/A
app pub date -
Apr 30, 2015
filing date -
Feb 4, 2015
priority date (Note) -
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Abstract
A 3-D printing apparatus including a base and a printing head module is provided. The base includes a first supplying platform, a printing bed and a second supplying platform disposed in order along a printing path. The first supplying platform and the second supplying platform carry building powder respectively; the first supplying platform and the second supplying platform are alternately lifted to a printing-reference plane of the base for supplying the building powder to the printing bed. The printing head module is movably disposed above the base and configured to move along a forward direction of the print path to transfer the building powder of the first supplying platform onto the printing bed, and move along a backward direction of the printing path to transfer building powder of the second supplying platform onto the printing bed to form bonded powder layers stacked together to form a 3-D object.
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