Hollow Calibration Pyramid

Want to know if your printer is properly calibrated? This hollow pyramid with an open base is a quick, economical, and effective diagnostic model that allows you to evaluate multiple key aspects of your 3D printer in a single piece.

🔍 What can you evaluate with this pyramid?

✅ Bridge quality
The design includes crossbars that act as horizontal bridges. Observe if there is filament sagging or loose threads: if so, adjust the speed, cooling, or retraction.

✅ Dimensional accuracy and symmetry
Each face of the pyramid should look the same, with well-defined corners. If you see distortions or asymmetries, check the belt tension, motor steps, or axis calibration.

✅ Layer adhesion and structural stability
Evaluate how your printer performs on inclines and thin structures. The faces should be well joined without layer separation. If there is separation, check the extruder temperature or filament flow.

✅ Angles and complex geometry
The pyramidal shape with internal cuts allows you to see how your printer handles slopes without the need for supports. If you see hanging threads or very rough surfaces, you may need to adjust the cooling.

✅ Surface finish and layer lines
The surface should have a uniform texture. Z-banding, wavy lines, or roughness can be signs of problems with the spindles, unlevel bed, or vibrations.

🛠️ Ideal for:

• Calibrating new printers or after maintenance
• Adjusting parameters such as retraction, ventilation, or speed
• Evaluating new materials (PLA, PETG, etc.)
• Uncomplicated visual diagnosis

⚙️ Recommended parameters:

• Layer height: 0.2 mm
• Supports: Not necessary
• Material: PLA or PETG