<p>I'm trying to print a small box with 1 mm thick walls.
The box has rounded corners.</p>
<p>Cura slices the rounded corners with straight internal lines instead of rounded lines:</p>
<p><a href="https://i.stack.imgur.com/5Kw87.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5Kw87.jpg" alt="Rounded Corners with infill" /></a></p>
<p>The reason for these straight lines is that Cura is using infill to fill the walls, because it determines that there's not enough space in a 1 mm wall for three 0.4 mm passes.</p>
<p><a href="https://i.stack.imgur.com/dDQAc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/dDQAc.png" alt="Rounded Corners without infill" /></a></p>
<p>This causes the walls to have small imperfections in the final print.
I was able to solve this by increasing the model wall thickness to 1.2 mm (to allow for 3 0.4 mm lines), but even then it wasn't doing it as a single continuous line, but instead breaking it into short lines at the corner:</p>
<p><a href="https://i.stack.imgur.com/zqSAN.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zqSAN.png" alt="Rounded corners for 1.2 mm thick walls" /></a></p>
<p>Is there a way to avoid this issue without increasing the wall thickness, and have 3 continuous lines?</p>

[{'answer_id': 14571, 'author': 'user77232', 'author_id': 12857, 'author_profile': 'https://3dprinting.stackexchange.com/users/12857', 'pm_score': 0, 'selected': False, 'text': "<p>Enable Z-Hop. I don't know what the actual parameter is called but it should say something like &quot;Z-Hop&quot;.</p>\n"}, {'answer_id': 14573, 'author': 'fred_dot_u', 'author_id': 854, 'author_profile': 'https://3dprinting.stackexchange.com/users/854', 'pm_score': 0, 'selected': False, 'text': '<p>In PrusaSlicer 2.0, use the Filament Settings Tab, Filament Overrides entry.</p>\n<p><a href="https://i.stack.imgur.com/lxXYU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lxXYU.png" alt="Slicer settings" /></a></p>\n<p>Look for Lift Z, click the box, enter a suitable figure. 0.2 is a good place to start. You can raise it if needed, lower it to decrease (minimally) the overall print time.</p>\n'}, {'answer_id': 14579, 'author': 'Antoine Artillan', 'author_id': 23902, 'author_profile': 'https://3dprinting.stackexchange.com/users/23902', 'pm_score': 3, 'selected': True, 'text': '<p>I found the solution :\nIt was the option &quot;avoid crossing perimeters&quot; that seems to do exactly the contrary of what it means.\nThank you all for your answers.</p>\n'}]
['https://3dprinting.stackexchange.com/questions/14599', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/24962/']