How to prevent "overshoot" corners or "round edges"

[Slashee_the_Cow 271]

20 hours ago, DracieVajko said:

I usually print at 70mm/s for outer and 120mm/s for inner walls and infill. Acceleration is around 150 and 250 at max, higher values again shows too much ringing. But im thinking about trying some jerk control towers with different settings if it would help somehow.

And here I was thinking my "paranoid" setting for acceleration of 500mm/s² (except in support and the moves before and after, I had to create a post-processing script just for that) was low. I guess it still is, in relative figures, given the E3V3SE can pull off 4000mm/s².

 

I usually print PLA at 60mm/s, except for infill (inner walls are the same as outer walls). When it comes to speed or acceleration, there is such a thing as too low, since it can be hard to accurately control the flow rate. I definitely wouldn't go any lower than what you're using.

 

Playing around with jerk is a great idea (okay kids, stop giggling): it's how much the speed is allowed to change instantly at a corner, because coming to a stop then moving in the new direction would leave a blob. It's also a leading cause for vibrations in the print, which can result in uneven walls (and a whole lot more, especially if you're trying to print something big). I set mine to 4mm/s. Slows down the print, sure, but good print > quick print.