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So I am currently dealing with this issue however it is not nearly as severe. After hours of research, Ive yet to conclusively come up with a solution but I am still working on it. Ill break my theories into two categories, mechanical issues and settings issues. After looking at your pictures, Im leaning more towards it being a loose belts. If anyone has anymore to add or would like to correct me if I said anything wrong then please do!
Settings
Temperature fluctuations
Fluctuations in temperature can cause the filament to come out at varying stages of fluidity.
You can see if this is what is happening by looking at the print core temps while printing.
Printing too fast
If you do have loose belts and are printing fast then there is an increase in likelyhood that these mechanical issues will start to affect your quality. Slow it down and see if that makes a difference.
Try to reprint it with the infill speed, outer wall speed, and inner wall speed all set to the same value. Maybe 30mm/s.
Flow rate may need to be tuned.
Print a square with 1 wall, no infill, and no top/bot layers. Measure the wall with a caliper and you should get the value you have set for your line width. If you aren't getting that value then find a flow calculator online and it will tell you the value you need.
Mechanical
Z axis screw not clean/lubricated properly.
Inconsistent filament diameter
Any fluctuations in diameter of the filament can cause inconsistent extrusions
Belts too loose.
Linear rods not lubricated.
Should be done monthly after the first year.
Bad bearing on one of the axis
This one is unlikely but still possible.
Bad PCB on print core which causes temperature fluctuations
Strap in for the first Cura release of 2024! This 5.7 beta release brings new material profiles as well as cloud printing for Method series printers, and introduces a powerful new way of sharing print settings using printer-agnostic project files! Also, if you want to download the cute dinosaur card holder featured below, it was specially designed for this release and can be found on Thingiverse!
S-Line Firmware 8.3.0 was released Nov. 20th on the "Latest" firmware branch.
(Sorry, was out of office when this released)
This update is for...
All UltiMaker S series
New features
Temperature status. During print preparation, the temperatures of the print cores and build plate will be shown on the display. This gives a better indication of the progress and remaining wait time. Save log files in paused state. It is now possible to save the printer's log files to USB if the currently active print job is paused. Previously, the Dump logs to USB option was only enabled if the printer was in idle state. Confirm print removal via Digital Factory. If the printer is connected to the Digital Factory, it is now possible to confirm the removal of a previous print job via the Digital Factory interface. This is useful in situations where the build plate is clear, but the operator forgot to select Confirm removal on the printer’s display. Visit this page for more information about this feature.
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Jhawk6553 8
So I am currently dealing with this issue however it is not nearly as severe. After hours of research, Ive yet to conclusively come up with a solution but I am still working on it. Ill break my theories into two categories, mechanical issues and settings issues. After looking at your pictures, Im leaning more towards it being a loose belts. If anyone has anymore to add or would like to correct me if I said anything wrong then please do!
Settings
Mechanical
-
Z axis screw not clean/lubricated properly.
-
Inconsistent filament diameter
-
Any fluctuations in diameter of the filament can cause inconsistent extrusions
-
Belts too loose.
-
Linear rods not lubricated.
-
Should be done monthly after the first year.
-
Bad bearing on one of the axis
-
This one is unlikely but still possible.
-
Bad PCB on print core which causes temperature fluctuations
-
Also pretty unlikely but possible
Edited by Jhawk6553Link to post
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Tim_Cochrane 3
I have had similar issues. I found it interesting that it looks like no improvements were made to the mechanical positioning of the new S7.
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