Is there a way to at least get an approximation?
If not, i have a suggestion: we can all share our “top speed” as well as some technical details, at least the ones we know, for example type of motors (stepper/servo). I’ll start:
700x500 80W Chinese red and black laser with stepper motors - 400mm/s (Ruida controller).
I’m sure it can go at least 500 mm/s but I don’t want to push it since… well who has time to wait for spare parts if something breaks