Computers & Graphics
aSchool of Computer Science and Technology, Shandong University bSchool of Mechanical Engineering, Shandong University
Some models designed by common users using our modelling tool and fabricated on desktop ceramic 3D printers CERAMBOT.
Ceramic 3D printing has gained rapid development in recent years. Especially, desktop
ceramic 3D printers get more and more popular for designers, artists, and makers
to work with clays. As a highly viscous pseudoplastic liquid, the printing material
clay produces featured aesthetics, and also indicates several manufacturing constraints.
There are barely customized modeling tools for ceramic printing. Targeting for ceramic
printing, we present a user-interactive modeling and fabricating framework using
sweeping lines as the design tool. We integrate the ceramic printing constraints like
self-supporting and collision-free in the modeling stage. Then we propose a customized
method for generating the printing file, with the guarantee that the extruder traces a single
continuous path without starts and stops. To fulfill this goal, we compute an adaptive
zig-zag path along the sweeping surface. During the fabrication, our continuous
path avoids the potential collision between the printing head and the physical model.
Moreover, we optimize the extrusion amount along with the extruder movement, such
that overlap between neighboring layers is appropriate in terms of both model stability
and cost-effectiveness. We demonstrate the fabrication process and physical results to
validate our method.
Adaptive zig-zag path algorithm: deal with the possible collision between extrusion head and printed model(left picture).
Adaptive extrusion amount computation: optimize the extrusion amount so that it's appropriate in terms of both model stability and cost-effectiveness(right picture).
Some materials with similar properties to clay can also be used for 3D printing through our framework, the picture shows the chair we fabricated with cement.
We thank all the anonymous reviewers for their valuable suggestions. This work is supported by grants from NSFC (61972232), State Key Laboratory of Virtual Reality Technology and Systems (VRLAB2019A01), Key basic research project of Natural Science Foundation in Shandong province (ZR2018ZB0106) and the Key Science and Technology Innovation Project of Shandong Province (2019JZZY010112).