[gnea/grbl Issue#739] What happens if the sum of maximum speeds needs more than 115200 Hz?

#1 – biasedlogic 于 2019-10-15

You are mixing up two things.
Baudrate has nothing to do with maximum speed of motor pulsing. 115200 is the brutto bitrate of communication link, is generally sufficient for even fastest grbl-manageable machines and should not be altered without a good reason. I.e it’s seldom a real bottleneck.

Maximum pulse rate is about 30kHz at any moment, per axis (it doesn’t matter if only one moves or all three move). If you try exceeding it, the whole thing will crash, i.e. hang up, reset, reinitialise.
You are required to calculate your maximum speeds upon configuration, it’s not checked live in operation.
Marek

#2 – MARIOBASZ 于 2019-10-15

Thanks you. Regards

#3 – CNCmaisdeMILL 于 2019-11-02

i use esp 32 Which baudrate should I configure?
I would like 200khz to use high resolution servos.