Posts
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Interactive Status Screen for Marlin Firmware: an experiment using PCD8544 Nokia 5110 LCD Controller
This is an interactive status screen for Marlin 3D Printer Firmware that I integrated into Marlin for a DIY 3D Printer. It enables you to access and tweak the most useful printer functions right from the status screen. The top bar (first line) 
is a set of “buttons” to access Menu, Print from SD, Home all, Preheat 1, Preheat 2, Cooldown, and Filament menu. -
Reverse Engineered Specification for Shimano Stepper Motor EM-286 STH-039H112-06
The EM-286 Shimano STH-39H112-06 is a stepper motor recovered from old FX880, FX890, FX2180, and other EPSON matrix printers. To use it in a personal 3D printer project, I reverse engineered some of its electrical and mechanical characteristics. It appears that there is no datasheet of it on the internet. I’m documenting the specs here for future reference. Feel free to use and propose any corrections for the parameters below. -
A Wireless 3D Gamepad DIY for Your Robots: Model, Circuit, and Firmware
This is a DIY Wireless 3D Gamepad designed for controlling an arm robot. It was developed under a technological research project¹ in Brazil at the Federal University of Jataí - GO². The project aims to build very low-cost robots to use in educational activities in Brazilian public schools. -
Reducing Marlin firmware binary size to fit in your 3D printer board memory
How to reduce the Marlin binary size? Here are a set of special compilation flags and options you can disable to save up to 16.3 Kb of memory for common AVR boards. Some build flags are also provided for ARM boards at the end.
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