< 3D Printing 
Introduction
3D printers are complex machines that require maintenance to operate efficiently.
Diagrams
On the left is a properly lubricated and axis aligned printer. On the right is a printer without recent lubrication and misaligned axis, resulting in print errors.
Proper belt tension is essential for accurate prints.
A properly leveled build plate is essential for adhesion.
A warped build plat can also cause errors.
Poorly calibrated FFF printers are prone to producing a defect in prints known as "Elephant's Foot".
Improper calibration can result in first layer issues.
References
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