FDM Print finishing problems

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