Fig. 2: Working principle of CM 3D printing system.
From: Centrifugal multimaterial 3D printing of multifunctional heterogeneous objects
a Illustration of the CM 3D printing system. b Steps for multimaterial 3D printing. c Residual resin stick onto a printed structure after it leaves the black resin. d Residual resin removed by centrifugal force. Scale bars in (c, d), 10 mm. e Centrifugal force enabled non-contact cleaning inspired by body-shaking of mammals. f Large-area cleaning by centrifugal force. g Experiment to investigate the effects of spinning time and speed on hR. h hR varies with spinning time for the resins with different η. i Model predictions of \({{t}}_{10{{{{{\rm{\mu }}}}}}m}\) for resin with different η under different angular speeds. Black circles, experimental data. j Comparison on the resolution-build area relation between CM and previously reported 3D printing systems. k A summary on viscosity modulus of the resins that CM 3D printer can print.
