Ultimaker S7 - Print Quality

EN UltiMaker S7 Installation and user manual 34
6.4 Print quality
Commonqualityissuesincludeunder-extrusion,ringing,andwarping.Ifyouarenotsatisedwiththequalityof
theprintedobject,thereareseveralthingstotry.Theprintqualityisaectedbymultiplefactors.
Material quality
If the material has degraded, this will show in the print quality. When not in use, ensure to store the materials
according to the recommended storage conditions.
For more information, see section 5.2 or the Materials support section on support.ultimaker.com. For third-
party materials, follow the manufacturer’s recommendations.
Some materials are susceptible to moisture intake. In some cases, the material can be dried to improve the material
quality.Youcanuseaspecializedlamentdryer(third-partyaccessory)orusetheheatedbuildplateofyourprinter.
Find more information on this support page.
Slicing settings
When preparing your print, using incorrect or suboptimal settings will lead to poor print quality. The following
settings most heavily impact the quality:
• Speed. Printing too fast can cause under-extrusion, poor layer bonding, and inaccuracies. Printing too slowly
can lead to surface blobs, oozing, and material degradation. Additionally, high acceleration and jerk settings
can increase ringing on the print surface.
• Temperature. Similar to speed, low nozzle temperatures may lead to under-extrusion, while too high
temperatures may cause the material to degrade. A low build plate temperature may cause the print to warp or
detach from the build plate.
• Object density.Thenumberofwalls,topandbottomlayers,andtheinlldeterminethedensityoftheprinted
object.Withtoofewwalls,theinllcanbevisiblethroughtheoutersurface.Toofewtoplayersoralowinll
density can cause pillowing on the top surface.
Ifyouarestrugglingwiththeprintquality,alwaysreverttooneofthedefaultUltiMakerCuraprolesrst.Find
more information about all UltiMaker Cura slicing settings in the Print settings section in our knowledgebase.
Hardware
If the hardware is causing poor print quality, this is most often due to not performing timely maintenance.
• Print core. The print cores could be (partially) blocked with degraded material. As mentioned in section 6.3,
cleanthecoresusingthehotandcoldpullmethod.Alsocheckthetipofthenozzle.Usingabrasivelamentsin
the AA or BB print cores can wear out the nozzle shape.
• Feeder. Ensure to timely clean the inside of the feeder according to the maintenance schedule. Set the feeder
tension to the correct setting to prevent slipping (too low tension) or grinding (too high tension) of the material.
For UltiMaker materials, the feeder tension should be set in the middle.
• Gantry. If the printer has play on the axles, a loose pulley, slack belts, or misaligned print head shafts, this can
heavilyaecttheaccuracyanddimensionsoftheprint.Timelyperformallrecommendedmaintenanceactions,
orndmoreinformationonoursupportpages.
For additional help on print quality problems, error messages, or any other problem you might experience with
your UltiMaker S7, go to support.ultimaker.com or submit a support ticket.