Closed-Loop Control of a 3D Printer Gantry Benjamin McKittrick Weiss Chair of the Supervisory Committee: Associate Professor Duane Storti Mechanical Engineering The use of closed-loop control to improve performance in gantry robots is a wellestablished technology, but adding the necessary sensors and computational hardware to low-cost 3D printer gantries has been generally thought to either be ...

The spectral-based characterization of inkjet printers is often based on a physical description of the printing process, but our experience tells us that it is not unusual to be unable to fit a mathematical model to a given printer. The objective of our work is to see whether the use of methods such as genetic algorithms and neural networks is an effective strategy to approach the complex probl...

The original intention of a 3D printer is to show the design idea more concretely and vividly, but there are still some defects in actual use process, such as unable print objects sufficient volume, models with colorful colors, etc. Therefore, our team tried multi-functional integrated expand printing area enrich model colors. Project Leader: Liao Jing; participants: Ma Zheng, Qian Baohui, Yang...

Although file and printer sharing services have been deployed almost ubiquitously for a long time as part of Microsoft Windows, only recent peer-to-peer applications popularized file-sharing on a global scale. As the Windows CIFS protocol was designed for local area networks, its use has been confined to relatively small environments. We propose a mechanism to set up spontaneous virtual groups ...

are a graphics system and a high-resolution printer that provide scientists with a means of producing camera-ready text and graphics. This paper describes techniques for producing three types of graphics: halfone pictures, line drawings, and solid-jlled areas. An overview of the software system is also presented. A graphics system that incorporates an experimental high-resolution , all-points-a...

The microscopic details of printing often are unnoticed by humans, but can make differences that affect machine recognition of printed text. Models of the defects introduced into images by printing can be used to improve machine recognition. A probabilistic model used to generate images showing toner placement bears similarities to actual printed images. An equation derived for the average cove...

In this study, the problem of updating a printer characterization in response to systematic changes in print-device characteristics is addressed with two distinct approaches: the creation of corrective models used in conjunction with an existing device model, and the re-evaluation of regression-model parameters using an augmented characterization data set. Several types of corrective models are...