Parametric LEGOBRICK-Compatible Baseplate

Update: (1.3.2026) Added ABS Print profiles

This is a fully parametric LEGOBRICK-compatible base plate, Feels like real! Designed for accurate 3D printing and easy customization. The best results were achieved with PETG-HF. The ready-made printing profiles have been thoroughly tested and adjusted for easy printing. So if you are using a customization tool, you will get the best results by copying the settings from the ready-made print profile to your customized model.

Features:

• Ready-made sizes from 2×2 up to 40×40
• Parametric design for flexible resizing
• Calibrated for Bambulab PLA Basic and PETG-HF filaments
• Compatible with commercial building blocks

Do not use matte PLA due to poor layer adhesion! Studs come off too easily. Bambulab PETG-HF, ABS and PLA Basic  tested and found to work.

Shrinkage Compensation:

Includes a shrinkage factor parameter to slightly scale the model up and compensate for plastic shrinkage during printing:

• PLA: recommended value 1.001
• PETG: recommended value 1.001
• ABS: recommended value 1.003

A 1×30 test plate is included for measuring thermal expansion and fine-tuning printer calibration.

STEP File Calibration:
All STEP files are pre-calibrated for material shrinkage for PLA and PETG-HF plastics
Only the stud diameter may need fine-tuning, which can be done by adjusting X-Y Contour Compensation in your slicer to match your specific printer.

Print Recommendation:

Before printing large plates, it is recommended to first print a small test plate (for example 4×4) to verify that:

• Stud dimensions are correct
• LEGOBRICK fit snugly and lock firmly into the plate

Designed to produce tight, reliable fits when printed with common desktop FDM printers.

Happy prints for all kids old and young!