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You are not being very specific about what you mean by "got stuck on the spool", so I can only guess the filament somehow got tangled (ie: the filament on the spool somehow got wound under the previous winding, instead of over). This can happen if you are not careful about rewinding the spool when you change materials.
When the printer fully retracts the material from the bowden tube, you can end up with a "jumble" of filament behind the printer. If you just pull that tight, you can create a "knot" in the spool. That knot can sometimes move along with the unwinding of the spool as you print, but eventually it will get tight and cause a failure to pull material into the printer.
Allways keep your spools of filament tought but putting the end of the filament in one of the holes along the brim of the spool, and always carefully rewind the spool after removing it from the printer.
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Another Cura release has arrived and in this 5.8 beta release, the focus is on improving Z seams, as well as completing support for the full Method series of printers by introducing a profile for the UltiMaker Method.
We are happy to announce the next evolution in the UltiMaker 3D printer lineup: the UltiMaker Factor 4 industrial-grade 3D printer, designed to take manufacturing to new levels of efficiency and reliability. Factor 4 is an end-to-end 3D printing solution for light industrial applications
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ahoeben 1,968
You are not being very specific about what you mean by "got stuck on the spool", so I can only guess the filament somehow got tangled (ie: the filament on the spool somehow got wound under the previous winding, instead of over). This can happen if you are not careful about rewinding the spool when you change materials.
When the printer fully retracts the material from the bowden tube, you can end up with a "jumble" of filament behind the printer. If you just pull that tight, you can create a "knot" in the spool. That knot can sometimes move along with the unwinding of the spool as you print, but eventually it will get tight and cause a failure to pull material into the printer.
Allways keep your spools of filament tought but putting the end of the filament in one of the holes along the brim of the spool, and always carefully rewind the spool after removing it from the printer.
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