Thanks for the suggestion. Am inclined to leave it be now, since the new motors should be here on the weekend and I think it may be better not to risk upsetting the board potentially.
I had carefully tried slowly & gradually increasing from 0.3v and there was no difference in the Z stepper behaviour other than the noise seeming a little more "confident" for want of a better word. It didn't change the judder factor of it in the slightest though, and I was loath to keep increasing it in case it caused an issue so I resisted the urge to try higher than about 0.5 as per your suggestion. For some reason the Z stepper is turning effectively in slow motion compared with the old board where they turned at normal speeds. Maybe it's a firmware thing - not sure.
Dumb question but how to I change the microstepping? Is that directly in the firmware? That's not something I've meddled with previously I must admit.
I had carefully tried slowly & gradually increasing from 0.3v and there was no difference in the Z stepper behaviour other than the noise seeming a little more "confident" for want of a better word. It didn't change the judder factor of it in the slightest though, and I was loath to keep increasing it in case it caused an issue so I resisted the urge to try higher than about 0.5 as per your suggestion. For some reason the Z stepper is turning effectively in slow motion compared with the old board where they turned at normal speeds. Maybe it's a firmware thing - not sure.
Dumb question but how to I change the microstepping? Is that directly in the firmware? That's not something I've meddled with previously I must admit.