<p>I printed this <a href="https://www.thingiverse.com/thing:4775702" rel="nofollow noreferrer">Curvy vase</a> from Thingiverse and it came out pretty well on my Chiron.</p>
<p><a href="https://i.stack.imgur.com/AP0wQ.jpg" rel="nofollow noreferrer" title="Curvy vase print"><img src="https://i.stack.imgur.com/AP0wQ.jpg" alt="Curvy vase print" title="Curvy vase print" /></a></p>
<p>However, I am not happy with the Z-seam that is very large. When I look at other people's problems with this, they often seem to have too little filament at the seam, but I have too much. What setting should I change to make it less visible?</p>
<ul>
<li>Printer: Anycubic Chiron with Marlin 2.0.7</li>
<li>Material: PLA</li>
<li>Slicer: Cura 4.8.0.</li>
<li>Nozzle: 0.4 mm</li>
</ul>
<p>All Cura settings are <a href="https://www.telder.com/bilder/stackexchange/curvy_vase/Curvy_Vase.html" rel="nofollow noreferrer">here</a> (except that I lowered printing temperature to 200 ºC while printing).</p>
<p>All files used and some pictures are <a href="https://www.telder.com/bilder/stackexchange/curvy_vase/" rel="nofollow noreferrer">here</a>.</p>
<hr />
<p>2021-03-07 <strong>Addendum</strong> after I made 19 test-prints of a small portion of the vase's neck. Below are some of my notes:</p>
<ol start="8">
<li>Combing Mode=All is better than Off</li>
<li>Speed=60 is worse than 40</li>
<li>Retract Before Outer Wall=On is worse than Off</li>
<li>Outer Wall Line Width 0.45 to 0.35 gave a Z-seam on the outside with more build-up</li>
<li>Inner Wall(s) Line Width 0.45 to 0.35. Some places has less contact between layers, so less appealing and less robust. Also less material use.</li>
<li>Outer Wall Wipe Distance 2.0 spread ot the seam (too much), and also made a ditch before the Z-seam (on the outside of the ring).</li>
<li>Coasting tripled to Vol=0.588 and Wipe Distance 5.0 is more appealing. Two changes at once make it impossible to know which one helped. 5 mm is not enough to completely wipe.</li>
<li>50% printing speed improved Z-seam and surface smoothness</li>
</ol>
<p>In the future I will use slower speed for Outer Walls, test Wipe distance=2*Line Width, use Combing (turned Off because of some advice to do so when LIN_ADVANCE is used) and experiment with faster retractions and Z-movement.
Pictures and complete notes are available <a href="https://www.telder.com/bilder/stackexchange/curvy_vase/" rel="nofollow noreferrer">here</a>.</p>

[{'answer_id': 15777, 'author': 'agarza', 'author_id': 23193, 'author_profile': 'https://3dprinting.stackexchange.com/users/23193', 'pm_score': 2, 'selected': False, 'text': '<p>This <a href="https://support.ultimaker.com/hc/en-us/articles/360012512340-Shell-settings" rel="nofollow noreferrer">Cura support page</a> lists the options for Shell settings, specifically:</p>\n<blockquote>\n<h2>Seam corner preference</h2>\n<p>The Z-seam is hidden as much as possible by default. However, for some projects, specifically those that require post-processing, exposing the seam can be necessary for the post-print processing. To do so, you can adjust the following settings:</p>\n<ul>\n<li><strong>None:</strong> The seam will remain on the Z-seam alignment location.</li>\n<li><strong>Hide seam:</strong> The seam will be hidden as much as possible.</li>\n<li><strong>Expose seam:</strong> The seam will be exposed as much as possible.</li>\n<li><strong>Hide or expose:</strong> The seam will be hidden when possible and exposed when there is no other option.</li>\n</ul>\n</blockquote>\n<p>In your setting, you have &quot;None&quot;. You may need to set it to &quot;Hide seam&quot;.</p>\n'}, {'answer_id': 15778, 'author': 'Trish', 'author_id': 8884, 'author_profile': 'https://3dprinting.stackexchange.com/users/8884', 'pm_score': 3, 'selected': False, 'text': '<p>There is a <a href="https://support.ultimaker.com/hc/en-us/articles/360012512340-Shell-settings" rel="nofollow noreferrer">Cura option</a> to choose a random seam alignment in the shell menu:</p>\n<p><a href="https://i.stack.imgur.com/I6UXi.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/I6UXi.png" alt="enter image description here" /></a></p>\n<blockquote>\n<h2>Z-seam alignment</h2>\n<p>This setting allows you to choose where each new layer in the Z direction starts and affects where the seam of the model will be. This is useful for models with consecutive equal layers as the seam can be visible. By changing the Z-seam alignment you can decrease the visibility of the seam. The options available are:</p>\n<ul>\n<li><strong>User-specified:</strong> Set a coordinate for the X and Y direction of the Z-seam. This coordinate is absolute by default. Example: X 100, Y 200 will move the seam to the center back of the model.</li>\n<li><strong>Shortest:</strong> The next layer starts at the endpoint of the previous layer. This is the fastest way of printing, but also creates the most visible seam.</li>\n<li><strong>Random:</strong> The next layer starts at a random point of the previous layer, which eliminates the chance of a seam. Print time will increase due to the necessary travel moves.</li>\n<li><strong>Sharpest corner:</strong> This puts the seam in the sharpest inward or outward corner of the model, when available. This is the best method to completely hide the seam.</li>\n</ul>\n</blockquote>\n'}, {'answer_id': 15783, 'author': 'markcosmic', 'author_id': 27141, 'author_profile': 'https://3dprinting.stackexchange.com/users/27141', 'pm_score': 1, 'selected': False, 'text': "<p>Use Cura's &quot;Vase Mode&quot; (known as <code>Spiralize Outer Contour</code>) for seamless printing.</p>\n"}, {'answer_id': 15790, 'author': 'R.. GitHub STOP HELPING ICE', 'author_id': 11157, 'author_profile': 'https://3dprinting.stackexchange.com/users/11157', 'pm_score': 3, 'selected': True, 'text': "<p>A bulging seam is caused by a mix of factors, especially:</p>\n<ol>\n<li><p>Material oozing while dwelling too long at the point of layer change (including the time spent in the Z move). This can be mitigated by ramping up the max Z speed and acceleration and/or enabling retract at layer change <em>with a very fast retract and unretract speed</em> (without doing it very fast, the time spent retracting has the same effect as the time spent on Z move).</p>\n</li>\n<li><p>Excess extrusion due to pressure remaining at the nozzle when decelerating. This can be mitigated by enabling Linear Advance and tuning the K factor for your printer's bowden tube and material properties. A value around 0.5 is probably needed for PLA on your printer. Increasing your acceleration limit to reduce the time spent accelerating/decelerating can also go a long way to mitigate this.</p>\n</li>\n</ol>\n"}]
['https://3dprinting.stackexchange.com/questions/15776', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/26869/']