Build a 2K Resolution MSLA 3D Printer on a Budget

Opportunity for Unused Android Devices

Do you have an old Android device collecting dust and want to use it more effectively? [Electronoobs] shows us how we can build a masked stereolithography (MSLA) device at a low cost, utilizing screens salvaged from old phones or tablets. In this project, [Electronoobs] revisits his previous printer, taking advantage of all the lessons learned over time.

A significant challenge is slicing the model into graphics for each layer so that these layers can be rendered by the LCD during printing. Another complicated aspect is transferring the layered graphics to the device. This is done by installing a custom Android application that connects to a web application hosted on an ESP32 microcontroller, which controls the printing. The application has a feedback channel through a USB OTG adapter installed on the device.

[Electronoobs] notes that there are different ways, perhaps even better, to facilitate this bidirectional communication, but he is pleased that his solution works effectively.

If you are passionate about resin 3D printing technology, make sure to read about Continuous Printing on LCD Resin Printers: Can Time Loss Be Avoided in the Peeling Process? and Temperature Modifications for Resin Printers and Continuous IPA Filtration.