For my purposes when building a printer, "precise figures" are not really required, I'm only really interested in a max power usage figure (in order to understand the potential power supply requirements), and the max current per phase (in order to choose the correct wire gauge).
From your equation we have 3.15W for this motor at rest (much less than I expected), would I be safe to multiply that by about 1.5 to get an idea of max power consumption under all conditions (so let's say 5W)?
You also mention back EMF, I've been choosing my wire gauge based on the max current I expect my stepper driver to supply (so 1.5A in this example), is back EMF ever going to be significant enough to need factoring in?
From your equation we have 3.15W for this motor at rest (much less than I expected), would I be safe to multiply that by about 1.5 to get an idea of max power consumption under all conditions (so let's say 5W)?
You also mention back EMF, I've been choosing my wire gauge based on the max current I expect my stepper driver to supply (so 1.5A in this example), is back EMF ever going to be significant enough to need factoring in?