System and method for supplying powder for 3D printing by powder spraying

摘要

A switching system (1) for equipment for 3d printing by at least a first powder jet, the switching system (1) comprising:-at least one first upstream gas conduit (g1) configured to receive gas,-a first powder Supplying at least one first upstream powder conduit (a) configured to receive,-at least one first downstream powder conduit (ra) for discharging the first powder, and-at least a nozzle designed to deposit the first powder A switching system 1 is disclosed comprising a body 10 defining a downstream working conduit t configured for the system. The system comprises, for the body, a first upstream powder conduit through a distributor, a first downstream discharge conduit ra Further between the resting position in fluid communication with and at least the first supply position in which the first upstream powder conduit is in fluid communication with the downstream working conduit through the distributor, preferably rotated about axis d to further move the distributor 2 Includes.