This test is designed to verify the expansion rate of lightweight PLA at temperatures of 210/220/230/240/250/260 degrees Celsius;
The basis of this test is that the volume of the printed model must be the same, i.e. the test data must be based on the premise that the model is printed to a high quality, without gaps, holes, etc. affecting the actual volume of the model;
The actual printed model is of high quality, with a full surface fill and no gaps or holes；
Print Model: 30*30mm cube
Print tempe: 210℃
Extrusion multiplier: 1.0
Model weight：8.1g
Print tempe: 220℃
Extrusion multiplier: 0.9
Model weight：7.4g
Print tempe: 230℃
Extrusion multiplier: 0.75
Model weight：6.1g
Print tempe: 240℃
Extrusion multiplier: 0.55
Model weight：4.5g
Print tempe: 250℃
Extrusion multiplier: 0.5
Model weight：4.1g
Print tempe: 260℃
Extrusion multiplier: 0.45
Model weight：3.7g
The test results show that the ratio of model weight to extrusion rate is about 8.1-8.2 at different temperatures, and the relationship between expansion rate and printing temperature basically satisfies the following table.
Lightweight PLA reaches a peak expansion rate of 222% at 260-270 degrees C. For the ultimate in lightness, print at 260-270 degrees C. For a balance between print quality and lightness, printing at 250 degrees C is recommended.
