个人级桌面式3D打印机的研究-机械工程专业论文.docxVIP

东华大学硕士学位论文 东华大学硕士学位论文 摘要 A RESEARCH OF THE PERSONAL DESKTOP 3D PRINTER ABSTRACT 3D Printing is also called Rapid Prototyping Technology. The manufacturing process of 3D printing doesnt need any machining or mould, the printer can read the data from the 3D model in the computer directly. It shortens the product development period, reduces the production cost and increases productivity. This thesis developed one personal desktop 3D printer with fused deposition modeling theory. The work includes mechanical structure design, controlling circuit building, controlling software selection and optimization of the printing precision. Analyzing the mainstream 3D printers based on the FDM modeling process, make a comparison between the different structure type. Finding out the structure optimization plan for the better printing precision. Making 3D modeling through the Solidworks, refer to the simulation results to double check the feasibility and reliability. After the components selection, complete the assembly of prototype printer. Assembling the circuit control unit with prototype printer structure. Uploading the firmware to control motherboard, in order to make it capable to control other electronic units directly, including step motor, nozzle hot end, temperature measurement and data transmission. Analyzing the main influence factors of printing precision through a series of printing tests, including hardware influence and software influence. Cold fan and hot bed are the main points in hardware. Changing the settings of slice software is the quickest way to increase the printing precision, it also can solve lots of printing problems. Author: Kun Fan (Mechanical Engineering) Supervised by: Zhihong Sun Key words: Rapid Prototyping Technology, Desktop 3D Printer, Fused Deposition Modeling, Printing Resolution 东华大学硕士学位论文