Instead, the stepper motors that came with the kit are designed for maximum force at low speeds. Which can make sense for some machines, but for one with a slightly flexible X-axis like this one ...

For someone who has never used stepper motors, real-time clocks, or built anything from scratch, [Dodgey99] has done a great job of bending them to his will while building his Etch-A-Sketch clock. … ...

The IC, TB67S549FTG, has an operating output voltage range from 4.5V to 33V and delivers an operating current of up to 1.2A. It is intended for a wide range of constant current control stepper motor ...

If you spot any, let me know.” “The electronics for the clock use an Arduino Uno with a set of four output wires, along with power and ground, to control a ULN2003 stepper motor driver.