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Could you show a photo please of the problem and also a screenshot of the model in cura after sliced?
In my experience PLA doesn't stick super well to PVA but it's usually fine. The other way around is usually the problem (pva not sticking on top of PLA and there are settings to deal with this second issue but none to deal with the first). Nylon and pva stick together much better.
Usually PVA issues involve humidity getting into the filament. I find even just 1 day sitting on the back of the printer is sometiems enough to "ruin" the PVA. You can dry the PVA by unspooling enough meters for your print (don't cut the filament) and putting that on the heated bed with the spool on top. Then set the bed temp to 70C (no hotter) and cover with a few towels or blankets and then let it sit like that for 3 to 4 hours.
One way to tell if your PVA or Nylon is too wet is that you will see steam coming out of the nozzle while it prints and maybe hear it crackling and sputtering. Also printed PVA should be transparent if dry - at least on the bottom layer. If it is very snowy that is tiny amounts of water making tiny steam bubbles.
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Cura 5.7 is here and it brings a handy new workflow improvement when using Thingiverse and Cura together, as well as additional capabilities for Method series printers, and a powerful way of sharing print settings using new printer-agnostic project files! Read on to find out about all of these improvements and more.
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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Could you show a photo please of the problem and also a screenshot of the model in cura after sliced?
In my experience PLA doesn't stick super well to PVA but it's usually fine. The other way around is usually the problem (pva not sticking on top of PLA and there are settings to deal with this second issue but none to deal with the first). Nylon and pva stick together much better.
Usually PVA issues involve humidity getting into the filament. I find even just 1 day sitting on the back of the printer is sometiems enough to "ruin" the PVA. You can dry the PVA by unspooling enough meters for your print (don't cut the filament) and putting that on the heated bed with the spool on top. Then set the bed temp to 70C (no hotter) and cover with a few towels or blankets and then let it sit like that for 3 to 4 hours.
One way to tell if your PVA or Nylon is too wet is that you will see steam coming out of the nozzle while it prints and maybe hear it crackling and sputtering. Also printed PVA should be transparent if dry - at least on the bottom layer. If it is very snowy that is tiny amounts of water making tiny steam bubbles.
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