The effects of voltage configurations on print accuracy in melt electrowriting

摘要

Poly(epsilon-caprolactone) is the most commonly-used polymer in melt electrowriting (MEW) to print high-resolution scaffolds. This work investigates the effects of voltage configurations (positive voltage loaded at print head and negative voltage loaded at collector) on PCL jet landing accuracy for different layers and fiber spacings. The results suggest that the print accuracy does not closely relate to the voltage configuration. Thus, applying a negative voltage that simply connects to a collector can greatly reduce the complexity of establishing a MEW device, which is beneficial for promoting the development of the MEW technology.