US 11,911,967 B2
Self-modifying apparatus for rotational support structure removal in 3D printed parts using calibrated resonant frequency
Daniel Joshua Hutchinson, Buffalo, NY (US)
Assigned to PostProcess Technologies, Inc., Buffalo, NY (US)
Filed by PostProcess Technologies, Inc., Buffalo, NY (US)
Filed on Aug. 26, 2021, as Appl. No. 17/458,115.
Application 17/458,115 is a division of application No. 16/348,276, granted, now 11,110,661, issued on Sep. 7, 2021, previously published as PCT/US2017/061880, filed on Nov. 15, 2017.
Claims priority of provisional application 62/422,198, filed on Nov. 15, 2016.
Prior Publication US 2022/0032544 A1, Feb. 3, 2022
Int. Cl. B29C 64/35 (2017.01); B08B 3/12 (2006.01); B33Y 40/20 (2020.01)
CPC B29C 64/35 (2017.08) [B08B 3/12 (2013.01); B33Y 40/20 (2020.01)] 20 Claims
OG exemplary drawing
 
9. An apparatus for removing unwanted support material from an additively manufactured part, comprising:
a chamber for containing a media in which the additively manufactured part is placed;
an ultrasonic transducer located with respect to the chamber for applying ultrasonic energy to the media and the additively manufactured part therein;
a first sensor located to measure a response to the ultrasonic energy applied to at least one of the media and the additively manufactured part and provide a first output indicative thereof; and
a control unit operably connected to the ultrasonic transducer and the first sensor, said control unit adapted to receive the first output from the first sensor and based on said first output adjust the ultrasonic energy applied by the ultrasonic transducer.