Motor sizes are determined by torque required to move their load and the way you want to move it. For a given load, higher acceleration means higher torque is required.
You can figure out approximately how much torque you need for your printer by using : Motor Sizing Tools It can be a little intimidating at first, but play with it a little and you'll quickly see it isn't so hard to use. Don't assume that all three axes have the same requirements. Calculate what is required for each axis. Once you know the required torques, shop for motors that provide those torques.
You can figure out approximately how much torque you need for your printer by using : Motor Sizing Tools It can be a little intimidating at first, but play with it a little and you'll quickly see it isn't so hard to use. Don't assume that all three axes have the same requirements. Calculate what is required for each axis. Once you know the required torques, shop for motors that provide those torques.