<p>I have an Ender 3 Pro which I use together with Cura 4.2.1 (and Octoprint). I print in PLA at 180°C. The print bed is set to 70°C. The Bed temperature is lower though, since I use a glas bed on top of the heated bed. I use a print cooling fan at 100%. The layer height is set to 0.2 mm, the line width 0.4mm from the 0.4mm nozzle. My retraction is 5mm at 50mm/s.</p>

<p>Prints come out with heavy vertical lines and no layer adhesion at these lines. I can easily break the print apart. In other spots the print is fine. Any ideas on what could cause this problem?
<a href="https://i.stack.imgur.com/mGGT9.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mGGT9.jpg" alt="enter image description here"></a></p>

<p><a href="https://i.stack.imgur.com/F3ZZ5.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/F3ZZ5.jpg" alt="enter image description here"></a></p>

[{'answer_id': 11089, 'author': 'cmm', 'author_id': 2082, 'author_profile': 'https://3dprinting.stackexchange.com/users/2082', 'pm_score': 2, 'selected': False, 'text': '<p>I would check the "steps per distance" setting.  If the motors were moving more than the firmware thinks, the height would measure as shorter than actual (since the number of steps would be less than the firmware expected).  Similarly, the radius would scale up.</p>\n\n<p>You replaced the controller and motor drivers, so perhaps the micro-stepping is different.</p>\n\n<p>If the result is inconsistently wrong, it could be a dynamics setting, such as acceleration or max velocity.</p>\n'}, {'answer_id': 11092, 'author': 'Metalfreak', 'author_id': 18664, 'author_profile': 'https://3dprinting.stackexchange.com/users/18664', 'pm_score': 3, 'selected': True, 'text': '<p>So the problem was that the TMC2208 were wired for UART mode, yet Marlin was configured for standalone, which apparently makes them work, but with completely wrong step sizes. Changing it in the configuration completely eliminated the problem</p>\n'}]
['https://3dprinting.stackexchange.com/questions/11085', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/18536/']