hello i am looking to maybe? use a servo and arduino to pull a camera slowly along a dolly system for timelapsing and pans
i haven't weighed anything. but how much weight do you think that one of these "large" 3 wire rc servos can lift? i see a lot of torque numbers and larger ones i find are not the 3 wire spec.
is 3 wire servo required for arduino.. sorry i know nothing about hobbyist servos. but deal with large ones at work in NI labview (although still a little in the dark on those too).
Got a link to the servo? Specs?
here is a simple one that seems to be comparable to most that i am finding.
i assume i want a fully rotational. otherwise the distance being pulled what be equivilent to percentage of rotation times circumfrence?
nick
seems like stepper motors will give me better results/strength compared to these "hobby" servos.
still unsure of what i am looking for tho to get easiest integration into ardiuno
One thing to keep in mind about stepper motors is that they step, rather than moving smoothly and continuously.
This might not be a problem if you're doing time-lapse still photography, but could be too "jumpy" if you're doing video or film.
You can minimize this (often enough that it's "not a problem" for your purposes) by using a stepper with a high-ratio gear train (similar to the ones used in hobby servos) and/or one with many steps per revolution.