<p>I'm getting weak prints on Ender 3 Pro with Cura after Cura upgrade.</p>
<p>Prints on my Ender 3 Pro have been good until I was forced to update Cura due to having to update the OS on my laptop.  Now my prints are weak even after using Infill 50 % from 20 %.</p>
<p>Upgraded to Cura 4.8.0.</p>
<p>I noticed that it seems my print settings were saved from the older non-working Cura version.  I went ahead and printed an XYZ Cube with the same settings from my older Cura version where prints were printing fine/acceptable.  It fell apart as I tried to lift it off the build plate so I printed a second XYZ Cube with 50 % infill from previous 20 % pictured below:</p>
<p><a href="https://i.stack.imgur.com/2hnqO.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/2hnqO.jpg" alt="enter image description here" /></a></p>
<p>The above print is noticeably weak, with layers not bonding or maybe something else.</p>
<p>Below is an image of when an XYZ Cube printed with my older Cura version.  It is not perfect but it is much stronger without visible separation and actually noticeably heavier than the grey XYZ Cube printed with Cura 4.8.0 :</p>
<p><a href="https://i.stack.imgur.com/Z0Mon.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Z0Mon.jpg" alt="enter image description here" /></a></p>
<p>The green and the grey 1.75 mm PLA I use and shown in the photos are different brands but both printed very much the same with the older Cura version.</p>
<p>I'm thinking this is an issue with the new Cura 4.8.0 that I'm using as nothing about my printing has changed besides the new Cura version assuming that my original print settings were saved which it looks to me that they were.</p>
<p>Has anyone had a similar issue or is there a known fix for this?</p>
<hr />
<p><em>Posting settings pics below:</em></p>
<p><a href="https://i.stack.imgur.com/wkGz5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wkGz5.png" alt="enter image description here" /></a></p>
<p><a href="https://i.stack.imgur.com/lnXOD.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lnXOD.png" alt="enter image description here" /></a></p>
<p>12/28/20 :
Went to <a href="https://www.chepclub.com/cura-profiles.html" rel="nofollow noreferrer">https://www.chepclub.com/cura-profiles.html</a> and noted that they mention to use the Cura 4.8.0 Built-In profiles.  Below are two pics of test print while using Cura 4.8.0's Built-In Standard Profile :</p>
<p><a href="https://i.stack.imgur.com/e2Dd0.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/e2Dd0.jpg" alt="Cura 4.8.0 Standard Profile" /></a></p>
<p><a href="https://i.stack.imgur.com/R0i8m.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/R0i8m.jpg" alt="Cura 4.8.0 Standard Profile" /></a></p>
<p>12/29/20 :</p>
<p>Screenshot showing Nozzle Diameter (still using the 0.4 mm stock nozzle) &amp; Flow @ 100 %.  Please let me know if these are not the correct settings you asked me to look in :</p>
<p><a href="https://i.stack.imgur.com/cq4yH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cq4yH.png" alt="enter image description here" /></a></p>

[{'answer_id': 15139, 'author': 'Barrel', 'author_id': 25990, 'author_profile': 'https://3dprinting.stackexchange.com/users/25990', 'pm_score': 1, 'selected': False, 'text': "<p>There are three settings you will want to check in Cura to help with this.</p>\n<p><strong>Nozzle Diameter</strong></p>\n<p>Check your &quot;Nozzle Diameter&quot; if you've moved to a larger nozzle and haven't changed it in the new Cura version then it'll be under-extruding, or the default option may just be incorrect for you, most printers (Like the stock Ender 3 Pro) use a 0.4\xa0mm nozzle.</p>\n<p><strong>Flow Rate</strong></p>\n<p>Flow rate usually requires a calibration test, however you should reference your old Cura profile for this, if in doubt, 100\xa0%.</p>\n<p><strong>Filament Diameter</strong></p>\n<p>This needs to be set to 1.75\xa0mm on almost every printer, which yours is.</p>\n<p>If you can't get it figured out with these, generate G-code With two versions of Cura side-by-side.</p>\n"}, {'answer_id': 15203, 'author': 'wallwalker', 'author_id': 25913, 'author_profile': 'https://3dprinting.stackexchange.com/users/25913', 'pm_score': 4, 'selected': True, 'text': '<p>Total user error on my end.  With the new version of this app somehow I did not catch that material selected on the UI dropdown was set to some custom material and not Generic PLA.  Once I selected the proper material, all worked as expected.</p>\n'}]
['https://3dprinting.stackexchange.com/questions/15104', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/25913/']