How to calculate max velocity Mesa card can handle

That looks correct but that is the velocity bound of the stepgen.
The actual maximum joint velocity should only be about 75% to 90%
of this value so there is some headroom.

PCW wrote:

That looks correct but that is the velocity bound of the stepgen.
The actual maximum joint velocity should only be about 75% to 90%
of this value so there is some headroom.

 

Thanks for confirming Peter.
Just for clarification is the steps_per_turn the screw or the motor shaft?

The screw, though you could add a motor/screw ratio for belt driven
ballscrews

PCW wrote:

The screw, though you could add a motor/screw ratio for belt driven
ballscrews

I must be missing something. Motor screw ratio !!

re: 1E9*Lead_Screw_pitch / (reduction*steps_per_turn*(StepLen+Stepspace))

I thought that the reduction from the motor to the screw controlled that in my case.
1.8 reduction from the motor_belt_screw.