FDM Print finishing problems

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The adhesion between the print and the bed is too strong, and sometimes attempts to detach it result in damaging the bed surface.

  • The print exhibits excessive adhesion to the bed: reaching a point where attempts to detach it can result in damaging the bed surface, solve this issue by:
    • Allow both the print and the bed to cool down, they contract at different rates, introducing tension, which makes dislodging easier.
    • Use a palette knife if the bed surface is glass (never put your fingers at risk; the knife's behavior can be unpredictable when it encounters resistance or when the print suddenly dislodges).
    • In severe cases, if you prepared the surface with glue and the bed is detachable:
      • Submerge it in water and wait until the print loosens
      • Use IPA to soften/dissolve the glue and retry dislodging the print
    • In an extreme case, heat the bed-print combination in an oven and use a palette knife when everything is hot. Be aware that this may likely destroy the print (and possibly your hands if not protected)
    • To prevent this from happening:
      • Clean the bed thoroughly and prepare the surface again regularly
      • Avoid excessive contact area between the print and the bed; consider dividing the contact area into sections by adding shallow holes
      • Never use very cheap filament that doesn't solidify well and acts like glue in practice
  • Hard-to-remove support:
    • Increase the air gap
    • Increase the spacing of the pattern
    • Decrease the support percentage
    • Turn off perimeter creation