<p>I thought I have already had and fixed every problem one could possibly have with a 3D printer. Guess I was wrong.</p>

<p>I haven't used my Creality CR-10 for a few weeks, everything was working the last time I tried. Today I wanted to print something minor and the printer just randomly paused a few times in the middle of the print.</p>

<p>To be exact, it seems that after a few G-code commands have been executed the printer just freezes for like 10 seconds and then continues like nothing happened. This occurred a few times and every time the nozzle is melting the surrounding plastic and extruding a little which ruins the print.</p>

<p>I have tried:</p>

<ul>
<li>Print from SD Card</li>
<li>Print from Laptop via USB connection to Ultimaker Cura</li>
<li>Print different models at different settings</li>
</ul>

<p>My theory is that either there is a core problem with how Ultimaker Cura exports the G-code files or something is wrong with the printer software. I thought that maybe re-installing the firmware might fix it but I heard that that is a risky process. What do I do?</p>

[{'answer_id': 10275, 'author': 'trialNerror', 'author_id': 16772, 'author_profile': 'https://3dprinting.stackexchange.com/users/16772', 'pm_score': 0, 'selected': False, 'text': '<p>I experienced the same with 4.1. Everything went back to normal after going back to 4.0 despite that all settings were identical as far as I could see. I compared the two g-code files using a simple file comparison tool. They were very different, hardly anything was the same. I still need to figure out what they mean. The model and thus the g-code files are far to large to go through. So, I will have to use a simple and small model to start unraveling what those differences mean.</p>\n'}, {'answer_id': 10618, 'author': 'Andrew Morton', 'author_id': 11255, 'author_profile': 'https://3dprinting.stackexchange.com/users/11255', 'pm_score': 2, 'selected': False, 'text': '<p><strong>Edit: The z-hop problem has been fixed in Cura 4.2.</strong></p>\n\n<hr>\n\n<p>This is a known issue with Cura 4.1 when z-hop is enabled.</p>\n\n<p>If you touch the z-axis motor frame while it is apparently stationary, you may feel it is actually moving.</p>\n\n<p>The solution is to set a value (I used something like 250 in conjunction with an Ender 3) for the "Maximum Z Speed".</p>\n\n<p>First you need to get the setting to be visible, so go to the "Settings" menu and choose "Configure setting visibility...":</p>\n\n<p><a href="https://i.stack.imgur.com/LrN1v.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LrN1v.png" alt="Configure setting visibility dialog"></a></p>\n\n<p>Then in the "Print settings" panel:</p>\n\n<p><a href="https://i.stack.imgur.com/Jzm3u.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Jzm3u.png" alt="Print settings panel"></a></p>\n\n<p>The full story is available on GitHub at <a href="https://github.com/Ultimaker/Cura/issues/5753" rel="nofollow noreferrer">[4.1 - current master branch] Z feed rates #5753</a>.</p>\n'}]
['https://3dprinting.stackexchange.com/questions/10248', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/14345/']