All of this information applies to all Folger Tech Printers, or any 3D printer, or CNC machine, that is using RAMPS 1.4 with Pololu A4988 stepper drivers.
From Dustin Corbin
In this tutorial, I you will learn how to control Stepper Motor speed with Potentiometer. for this project you required arduino, drv8825 driver, breadboard, wires, ...
From Atmos iTech
Chuck shows you how to adjust the stepper motor current drive on a Fabrikator Mini to reduce the heat and sometimes failure of the motors in this tiny 3D printer.
From CHEP Filament Friday
Get greater mileage from your battery life and make your motors quieter. Michael shows you how to increase or decrease the motor speed of your roller blinds.
From I Seek Blinds Official Channel