Actually I would say that is not correct - wear and acceleration are very specific to motor and leadscrew sizing. If your motors are too small, they won't be able to accelerate a given mass as quickly (for the same screw setup). If your leadscrews are small, they could buckle under the force generated by accelerating a large mass. If the threads in the nut are small, they could be sheared off. There are lots of other issues as well, but my point is that a large mass is not a problem in and of itself. You just need the rest of the design to take that into account. |