Design of a 3D Printer with Five-Bar Linkage
摘要
The paper shows the design of a SCARA 3D printer using a symmetrical five-bar linkage. The five-bar linkage workspace covers the horizontal plane of the 3D printer, and a guided screw moves a mobile platform with the mechanism. The symmetrical five-bar linkage is synthetized to ensure a singularity-free dexterous workspace and a proper transmission angle in the extreme positions of the characteristic point. In addition, a prototype design is presented to show the feasibility of the proposed 3D printer with five-bar linkages. By using the Finite Element Analysis is estimated the deflection of the extruder in comparison with a similar 2-bar open-loop 3D printer architecture.