I’m about to commit to a retrofiting an old CNC router with new controls. TinyG is my preferred option, but since the steppers require 4.7 A, I’ll need external drivers.
At least one person has claimed success with CW5045 and Gecko 210x drivers. I’m looking at a Leadshine MX3660 (datasheet) but am nervous about it being compatible with the TinyG. It requires a step pulse of 2.5 microseconds and a signal voltage of 3.3 to 5V, so it looks good. But maybe I’m missing something.