Bridge Torture Test - 3D Printer Calibration Tool

Your printer, running the way it should.

42k downloads in the maker community

$8.99

Color: Gray

Printed in the USA when you order.

1.You order it
2.We print it fresh
3.It ships to you

Test your printer's bridging capability with this calibration benchmark
Reveals optimal bridge speed settings for cleaner overhangs
Hollow struts design reduces testing time without sacrificing accuracy
Supportless print helps you dial in extruder performance
Parametric OpenSCAD design for repeatable calibration results

The Bridge Torture Test is a specialized calibration tool designed to evaluate your 3D printer's bridging performance. This benchmark model features a challenging circular bridge that quickly reveals whether your printer settings are optimized for clean, supportless overhangs.

The design incorporates hollow struts to minimize print time while still delivering accurate diagnostic results. Many makers discover through this test that reducing bridge speed is the key to achieving crisp, sag-free bridges—a valuable insight for improving overall print quality across all your projects.

Originally created for RepRap and MakerBot printers, this parametric test piece works with any FDM printer. It's an essential addition to your calibration toolkit alongside temperature towers and retraction tests, helping you fine-tune extruder settings for consistently better prints.