The design of each of the two axes revolves (sorry!) around the use of a NEMA-17 stepper motor with a 27:1 planetary gearbox, driving into a harmonic reducer gearbox.

3D-printed gearboxes are always an interesting design challenge, especially if you want to make them compact. [ZeroBacklash] created a little strain wave gearbox (harmonic drive) for when you want ...

They essentially convert data into ultra-fine microstepping — 256 microsteps per motor step — and ramp speeds up and down between steps to create smooth motion without the traditional stepper ...

The lure of microstepping a stepper motor for precision must be tempered by torque considerations.

The NP3775 dual bipolar chopper drives a 2-phase stepper motor with full- or half-step operation and a maximum output current of 750 mA. Integrating a digital filter to eliminate external ...

The 2-phase Flat Type is an ultra-compact and light weight entry to the PKP Series of stepper motors and is available in two frame sizes; 1.65" (42 mm) or 2.36" (60 mm) frame size. The Flat Type PKP ...

Disclosure: I have seen a set of 3d printed x-y motor mounts, like these from jimmit on thigiverse, but no 3d printed z (up-down) mechanism. Here’s is my prototype z-axis mount (right). It is the grey ...

These microstepping motors can be positioned even more accurately and are much quieter than older designs. Canon innovates again, this time with quiet stepper motors ...

Disclosure: I have seen a set of 3d printed x-y motor mounts, like these from jimmit on thigiverse, but no 3d printed z (up-down) mechanism. Here’s is my prototype z-axis mount (right). It is the grey ...