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The purpose of this paper is to design and develop a rotary three-dimensional (3D) printer for curved layer fused deposition modeling (CLFDM), and discuss some technical challenges in the development.

Some technical challenges include, but are not limited to, the machine design and control system, motion analysis and simulation, workspace and printing process analysis, curved layer slicing and tool path planning. Moreover, preliminary experiments are carried out to prove the feasibility of the design.

A rotary 3D printer for CLFDM has been designed and developed. Moreover, this printer can function as a polar 3D printer for flat layer additive manufacturing (AM). Compared with flat layer AM, CLFDM weakens the staircase effect and improves geometrical accuracy and mechanical properties. Hence, CLFDM is more suitable for parts with curved surfaces.

Double extruders have brought improved build speed. However, this paper is restricted to complex process planning and mechanical structures, which may lead to collisions during printing. Meanwhile, the rotation range of the nozzle is limited by mechanical structures, affecting the manufacturing capability of complex curved surfaces.

A novel rotary 3D printer, which has four degrees of freedom and double extruders, has been designed and manufactured. The investigation on the prototype has proved its capability of CLFDM. Besides, this rotary 3D printer has two working modes, which brings the possibility of flat layer AM and CLFDM.

The purpose of this paper is to explore a new way for knowledge services of the digital library which can transform knowledge resources into real social value.

The “Internet of Knowledge” approach was proposed for the first time as an intentional means to organize “Too Big” and scattered knowledge resources into high-efficiency fuels for driving purposeful knowledge works.

It is a new methodology and insight proposed for building digital libraries which stresses on active and diligent services with linked and shared resources rather than resource ownership.

The proposed knowledge organization is based on domain-specific body of knowledge. The engagement of domain experts is the key success factor.

The whole design framework has been adopted in constructing the new Zhoushan Ocean Digital Library to support sustainable development of marine economy.

The proposed knowledge cloud services will be pave a knowledge superhighway to help millions Chinese professionals stepping toward the technology peak.

The purpose of this paper is to develop a network-based approach for doing active knowledge services in the coming networked knowledge era.

A novel solution so-called “Internet of Knowledge (IoK)” is proposed in this paper, which can be used to organize scattered resources into a value-added knowledge asset for serving any specific objective through internet connection.

It enables the public library to be an attractive habitat for both knowledge consumers and contributors to share and co-create knowledge works. It will be an ideal ecosystem for supporting the growth of knowledge-intensive industries.

A pilot system has being developed to promote the development of marine economy.

The IoK-based approach is expected to be applied to more domains in the next China’s five-year plan.

The main contribution is to integrate many great ideas from world gurus into a single solution framework, in other words, an integration innovation.