By now a lot of you might have an old cheap 3D printer around. Clem upgrades his old cheap fire hazard of a 3D printer with a genuine Arduino Mega running Marlin 2.0 and a Custom made PCB to give it quick access buttons for functions like Filament loading and Unloading and increase its security features with independent measurement of temperatures and Heater voltage and current. While upgrading his own machine he walks you through the settings you need to properly configure your machine should you choose to upgrade it.
How do you configure a 3D printer Firmware from scratch?
Here is my extensive Walkthrough from zero to a full Marlin 2.0 configuration: LINK
Download the latest Firmware version here: LINK
You can now buy the Addon Board for Ramps based 3D printers here to solder and programm it yourself: https://aisler.net/MAYERMAKES/kits/3dprintertester