文档介绍：3D打印机毕业设计
D
6 3D打印机的优点及面临问题 21
3D打印机的优点 21
3D打印技术面临的问题 21
参考文献 22
致谢 23
Contents
Summary ...........................................................Ⅰ
Abstract ................................................. ........Ⅱ
1 Introduction .....................................................2
Research Status 3D printer at home and abroad..................2
Research Status of Foreign 3D printer........................2
Research Status of domestic 3D printers.......................3
Trends of 3D printer...........................................3
Future prospects of 3D printing industry...................3
3D printing technology for future development..............4
3D printer works and features..................................4
The development of innovative and breakthrough.................6
Chapter Summary................................................7
2 Overall program and structural design.............................7
Introduction...................................................7
The overall design of the framework............................8
Temperature control loop design................................8
XYZ three directional control motor design.....................9
Mobile and spray nozzle design volume adjustment...............9
3 Mechanical structure.............................................10
Select Transmission..........................................10
Calculation of moment of inertia..............................11 Select nozzle.................................................12
4 Select motor....................................................13
Comparison of servo motors and stepper motors.................13
Comparison of DC servo motor .................................15
The calculated of load torque.................................15
Preliminary estimates