CN3D Skew, Squareness & Dimensional Accuracy Test

This isn't just another calibration print.

The CN3D Skew, Squareness & Dimensional Accuracy Test was specifically designed to work together with the free CN3D online calibration calculator.

Print the model, take your measurements, then use the calculator to analyze your results and receive step-by-step recommendations based on your printer's accuracy.

Use the free calculator here:

👉 https://docs.cn3d.eu/en/calibration/skew

(You can change the language directly from the website.)

The calculator doesn't just calculate skew correction. It also:

• ✅ Verifies XY squareness

• ✅ Evaluates dimensional accuracy

• ✅ Calculates the correct Klipper and Marlin values

• ✅ Estimates the impact on larger prints

• ✅ Detects when Shrinkage Compensation is actually needed

• ✅ Guides you toward the next calibration step

And once your printer is fully calibrated...

Don't throw the model away. It also works as a practical desk coaster. 😊


Print Settings

Use the same settings you normally print with.

This allows the calculator to accurately evaluate your printer and determine whether additional calibration is actually needed.


If the calculator recommends further calibration, you'll improve your everyday print quality—not just this test print.

📖 Free online calculator & step-by-step guide:
https://docs.cn3d.eu