Influence of Transducer Control in DOD Printing
In this study, we focus on the design of the electronic control of transducers and the improvement of the Print Quality Optimization Apparatus (PQOA) which helps to investigate in detail the influence of the driving signal. On one hand, the computer controlled frequency function/amplifier has a versatile architecture and can be used to drive various print-heads between −30 and 200 Volts peak-to-peak. On the other hand, the upgrading of the PQOA allows to perform advanced signal processing both on the drive waveform and on the surface profile of the ejected filament.
In the course of our experiments, we have tested extensively the influence of the driving voltage for a given waveform thanks to the versatility of the generator. The results that we have obtained concern the size of drop, the length of the filament tail and the velocity of the droplet. They provide a better understanding of the relationships that exist between the initial perturbation and drop formation process.
Document Type: Research Article
Publication date: 2000-01-01
For more than 30 years, IS&T's series of digital printing conferences have been the leading forum for discussion of advances and new directions in 2D and 3D printing technologies. A comprehensive, industry-wide conference that brings together industry and academia, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems?particularly those involved with additive manufacturing and fabrication?including bio-printing, printed electronics, page-wide, drop-on-demand, desktop and continuous ink jet, toner-based systems, and production digital printing, as well as the engineering capability, optimization, and science involved in these fields. In 2016, the conference changed its name formally to Printing for Fabrication to better reflect the content of the meeting and the evolving technology of printing.
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