3D Printing with Stationary Build Platform

Smart overview of the Invention

Three-dimensional (3D) printing has transformed the manufacturing landscape, allowing for the creation of prototypes and end-user products. Despite its advantages, the technology faces challenges, including slow processing speeds and issues with the attachment and release of printed materials during production. These challenges motivate ongoing innovation in 3D printing methods and systems.

Stationary Build Platform Approach

The proposed method utilizes a stationary build platform for 3D printing, enhancing the overall efficiency of the process. A volumetric dosing system, such as a dosing pump, is employed to deliver precise amounts of photo-sensitive resin to a vat. An image projector then cures the resin layer by layer, enabling the construction of a 3D object from the bottom up while minimizing unwanted surface rippling.

Layer Formation and Resin Management

Each layer of cured resin is formed directly above the previous one, ensuring a solid build structure. The build platform is positioned at the bottom of the vat, where uncured resin is stored in a reservoir. The dosing pump controls the amount of resin transported to the vat for each layer based on predefined parameters, such as vat dimensions and desired layer thickness.

Control Mechanisms for Enhanced Performance

A controller manages the operations of both the dosing pump and image projector. It can halt resin transportation based on sensor feedback, optimizing the printing process. This automation not only improves print speed but also enhances quality by reducing or eliminating moving parts within the vat.

Advantages and Future Implications

The described methods aim to minimize surface rippling and enhance print quality by reducing mechanical complexity. As these innovations are further developed, they may lead to significant advancements in 3D printing technology, potentially speeding up production times and improving material utilization in various applications.