Skew calibration hourglass

Print it, measure marked distances (A - F), insert into skew calculator and you'll get skew compensation parameters.

Use PLA because it's the most stable and hard.

Advantages of this model

• vase mode ready (fast printing)
• letters are not on top/bottom layers (easier to print and read)
• filleted corners (faster, smoother and more precise printing)

Standard mode (non-vase mode) with top layer(s) gives more rigid model (more precise measurement).

Vase mode

Use low layer height and/or wide extrusion (external perimeter) e.g. 1 mm (even with 0.4 mm nozzle).