Dear sir.
<span style=”font-size: large;”>Kindly I have project and need motor to push filament similar to 3d printer,I select from amazon this motor (Usongshine Nema 17 Stepper Motor Bipolar Step Motor for Titan Extruder 3D Printer 4.1V 1A 13Ncm (18.4oz.in) 4 Lead 1.8 Deg with 1m Cable) so please can you support me to select which control speed you have is suitable for me.</span>
<span style=”font-size: large;”>Yours</span>