the L298 does have sense resistors to limit current, check the data sheet.
A simple method to get a rough measurement of the required torque.Attach some sort of wheel or drum to the shaft that the stepper motor will be required to turn. Wrap some strong thread or fine string around the drum and suspend a small plastic beaker from it. This will obviously only work if the shaft is horizontal.Add coins to the beaker until the weight is just sufficient to make the drum rotate. Weigh the beaker with the coins in it.Measure the diameter of the drum where the thread is wrapped and calculate the radius. Suppose the radius in 2cm and the weight is 100grams. Then the torque is 200gm-cm.Repeat the measurement several times and take an average. Choose a motor with perhaps twice that amount of torque to provide a good safety margin....R
I know it's meant for newbies - but maybe supply a link to more text that describes rotational inertia and static/dynamic friction?
I would be happy to do so. Have you any suggestions, or perhaps you could write a few lines yourself?...R
If my millisbetweenSteps are 25 is correct to take the frequency equal to: f = 1/0.0025 Hz?
Thank you so much Robin
Sheesh, once I started I couldn't stop ...
Thanks very much. I sent you a couple of PMs so as not to confuse stuff here...R