I have a Delta printer that I recently upgraded from a Creality 1.1.4 with Marlin version 1 to a Creality 4.2.7 with Marlin 2.1.2.1. It is printing well, but I am seeing a consistent speed change for a short distance on linear moves going from -X-Y to +X+Y and from +X-Y to -X+Y as it crosses from negative to positive. I was seeing this with the old board and thought it might just be the old board could nor keep up. It creates a noticeable pattern on the part that looks like less adhesion because of the speed change.
Any ideas?
