My current setup uses nema 34 8n•m closed loop stepper motors with 60v power supply 1605 ball screws. With this I get 280ipm rapids but I feel there should be more there and I'm guessing the issue is the high rpm causing the torque to drop off. I'm thinking of two options to get faster movements:
1. 1610 ball screws. Pretty simple way to get more speed at a lower stepper rpm.
2. Belt drive the stepper and over drive the screw so the stepper is in a more ideal rpm range but still driving the screw faster.
I realize that both option will result in a reduction is resolution but is there a clear benefit to either option or a better option all together?