Filament Shrinkage Calibration Bar

Special Note: This model serves as a measurement model, a tool for slicing practice, and a calibration test model. Therefore, occurrences of stringing, gaps, or incomplete prints are considered normal outcomes and do not indicate problems with the model file. They will not affect the accuracy of shrinkage measurements. Therefore, please refrain from giving the model a poor rating due to print quality. Thank you!

Each filament spool exhibits unique shrinkage characteristics. To enhance print accuracy, a material shrinkage test strip has been designed.

Operation is straightforward; simply input the measured values into the parameter fields to resolve model discrepancies.

This test strip, however, is more than just a simple gauge. I have incorporated varying corner angles, overhangs, incrementally thicker walls, thin walls with differing gaps, lateral and vertical holes, a 0.4mm thick 45-degree incline test, and a stringing test.

Enthusiastic users may independently modify print parameters to explore the influence of shrinkage on modeling.

Using PLA as an example, adding junctions to walls of varying thicknesses demonstrates how shrinkage at the junction weakens or disappears as wall thickness increases.

Sudden fluctuations in filament flow can introduce shrinkage ripples to otherwise smooth walls.

Variable speeds can create noticeable variations in surface gloss, potentially resulting in fractured lines.

Do not switch the wall generation to classic mode; this will result in missing overhang walls, increased thin wall thickness, and potentially incomplete parts.

Please read: Filament Settings/Annotations before printing