- Mechanical Leveling - The easiest way to check this is to command the printer to "zero" the axis and move the extruder to its lowest position. You should be able to insert a sheet of paper between the build platform and the tip of the nozzle. If there is a gap, gently raise that side of the build platform using the adjustment screw or a shim and continue checking the remaining corners of the build area.
Extrusion Raft - If the build platform is warped, or cannot be leveled, try printing your next object with the "raft" feature enabled. This will deposit a thick grid of material onto the bed at the beginning of each print and will eliminate most adhesion problems.
The build surface needs to be level to ensure the filament properly sticks to the surface and to provide a secure foundation for the print job. The bed can be leveled by either mechanically leveling the bed or using a raft to accommodate for unevenness.This guide was first published on Aug 05, 2013. It was last updated on Aug 05, 2013. This page (Bed leveling) was last updated on Apr 08, 2016.