Overhangs

When each layer overlaps the previous one by approximately 50%, a 45° overhang results. Printing speed, temperature, and extrusion zone cooling are a delicate balance: if not calibrated, they can produce defective surfaces or complete print failure. In the tests below, the sample on the left shows critical issues that were later resolved in the piece on the right. The problem was caused by the high nozzle temperature (265°C) combined with a low speed; this makes the filament too fluid and not very 'tight,' causing it to fail since the support base is limited to only half the width of the line. Moreover, a good, sturdy PETG cannot be printed at low temperatures.