Gridfinity Builder includes presets for popular 3D printers to help you design layouts that fit perfectly on your build plate.
Available Presets
Each preset configures the grid size to match your printer’s build volume:
| Printer | Grid Size | Real Dimensions | Notes |
|---|
| Bambu Lab A1 | 6 x 6 | 252 x 252 mm | Default preset, fits most common layouts |
| Bambu Lab A1 Mini | 4 x 4 | 168 x 168 mm | Compact printer, smaller baseplates |
| Bambu Lab P1S | 6 x 6 | 252 x 252 mm | Same as A1 |
| Bambu Lab X1C | 6 x 6 | 252 x 252 mm | Professional printer, same volume as P1S |
| Bambu Lab X1E | 6 x 6 | 252 x 252 mm | Engineering filaments, same volume |
| Bambu Lab H2D | 6 x 6 | 252 x 252 mm | High-speed printer, same volume |
| 19” Server Rack | 10 x 8 | 420 x 336 mm | Wide format for rack-mount trays |
| Custom | 8 x 8 | 336 x 336 mm | Start with 8x8, then adjust to your needs |
The Bambu Lab A1 is set as the default preset (6x6 grid). It’s a good starting point for most users.
How to Use Presets
- Select a preset from the baseplate configuration panel in the sidebar
- Design your layout within the grid boundaries
- Export as 3MF when ready to print
The grid boundaries in the 2D view show exactly what will fit on your printer’s build plate.
Understanding Grid Dimensions
Each grid cell represents one Gridfinity unit:
- Cell size: 42 x 42 mm (including tolerance)
- Height unit: 7 mm (1u = 7mm tall)
- Inter-cell gap: 0.5 mm
Calculation Example
For a 6x6 grid (Bambu Lab A1):
Width = (6 cells × 42mm) = 252mm
Height = (6 cells × 42mm) = 252mm
Custom Baseplate Sizing
If your printer isn’t in the preset list, use the Custom option:
- Select Custom from the preset dropdown
- Enter your desired columns (width in cells)
- Enter your desired rows (depth in cells)
- The real dimensions are calculated automatically
To find your maximum grid size, divide your printer’s build plate dimensions by 42mm. For example, a 210x210mm printer can fit a 5x5 grid (210 ÷ 42 = 5).
Custom Sizing Tips
- Leave margin: Subtract 5-10mm from your build plate size to ensure the baseplate fits comfortably
- Consider nozzle clearance: Some printers have restricted corners or edges
- Test small first: Print a single 1x1 bin to verify your calibration before printing large baseplates
Multi-Baseplate Layouts
For layouts larger than your printer, you can:
- Split across multiple baseplates: Design a large layout, then export bins in groups
- Print separate sections: Export bins for different areas, print them separately
- Join baseplates: Some users 3D print connectors to join multiple baseplates
For very large layouts (10x10+), consider breaking them into 6x6 sections. This makes printing more manageable and lets you organize by category.
Printer-Specific Notes
Bambu Lab Printers
All Bambu Lab presets are optimized for their multi-color printing capabilities:
- Export 3MF files open directly in Bambu Studio
- Bins are positioned automatically on the virtual build plate
- Use the A1 Mini preset for faster test prints
19” Rack Trays
The 19” Server Rack preset (10x8) is designed for:
- Network equipment organization
- 1U rack-mount trays
- Server room cable management
- Data center small parts storage
Changing Presets Mid-Design
Changing presets does not automatically remove bins that exceed the new grid size. You’ll need to manually delete or reposition any bins that fall outside the new boundaries.
- Review your current layout
- Note any bins that might exceed the new size
- Select the new preset
- Use Optimize Layout to automatically repack bins if needed
Next Steps
