I’ve been engraving using the default bi-directional option with very good results. I just tried turning it off to see how things look using uni-directional. For some reason in uni the Y axis seems fine, but the X axis seems to offset each line at a 1:2 ratio, giving what appears to be a perfect 45 degree slant.
I read about the rising/falling PWM settings, but since the bi-directional mode works fine I don’t think that’s the issue? Not sure if this is something that needs to be adjusted in LightBurn or the controller (Ruida).
Top two rows is bi, bottom row is uni.