When I print large prints close to the maximum dimensions of the heated build platform on my Anet A8, the brim or skirt or the print itself is printed outside the heated bed.

• Why is the print not centered on the bed?
  It was centered in the slicer before generating the G-code.
• How can I center the print to make it fit on the heated build platform?

When I print large prints close to (but not exceeding) the maximum dimensions of the heated build platform on my Anet A8, the brim or skirt or the print itself is printed outside the heated bed, while there is some space left at the opposite sites. It appears as if the print is not in the center.

• Why is the print not centered on the bed?
  It was centered in the slicer before generating the G-code.
• How can I center the print to make it fit on the heated build platform?