Built on MakerWorld's Parametric Model Maker, GRIPS allows you to generate custom size Gridfinity baseplates. The GRIPS customizer automatically cuts the baseplate into pieces sized for your printer and adds jigsaw tabs so the pieces satisfyingly lock together.

Now with optional magnet support!
 

Instructions:

1. Download and print my test pieces profile above. 
   1. Avoid printing the test piece from the phone app as fit issues have been reported.
   2. Use your desired material to confirm everything prints cleanly and fits together well.
   3. On average, the tabs should fit snugly (some variation is normal). I have tested this on different materials and all worked well. If you run into issues where the fit is too tight, see the Interlock Type option in the customizer. 
   4. If using magnets, confirm that you are happy with the magnet fit. Also check that standard 1.75mm filament fits into the horizontal locking holes. If not, use the customizer to generate a 42x42mm grid, adjusting Magnet Options until you find settings that work for you. 
2. Click on Customize, enter your needed baseplate size, enable magnets if you need them, check other settings, then click Generate.
3. If it looks good, click Download.
4. Open the 3MF / STL with Bambu Studio / your slicer.
5. If using the STL version of the customizer, you need to split the model and (auto) arrange the pieces.
6. Make manual adjustments to the arrangement of the pieces as needed (group small pieces onto one plate for example).
7. You should be ready to slice and print the plates.
8. Once all plates are printed, take your jigsaw pieces and assemble.
9. If using magnets, use the cutting guide and a razor blade/utility knife to cut short pins from standard 1.75mm filament. Fit pins into the horizontal holes to lock the parts into place. Needle nose pliers are recommended.
10. If using the M3 Screw & Nut interlock option, secure the pieces together with 8mm or 10mm long M3 screws and M3 nuts. 

I encourage you to share your photos in the comments! It is always satisfying seeing folks organising their storage.

Release history:

• Oct 16, 2024: Initial Release.
• Oct 26, 2024: Added option to turn off generation of the locking tabs.
• Dec 18, 2024: Fixed some issues where margins could sometimes cause the pieces to exceed the build plate size.
• Feb 1, 2025: Reimplemented how the initial baseplate is constructed to: improve performance; fix some non-standard dimensions in the original code I used; and, get set up for implementing other requested features.
• Feb 2, 2025: Updates to advanced options: the horizontal/vertical offset's are now clamped to make it easier to align to the front for example; the extra corner rounding now defaults to off, is fully adjustable, and clamps to the maximum size the margins allow. 
• Feb 4, 2025: Refactored plate cutting to avoid generating small, loose chips. Baseplate generation is also much faster now.
• Feb 4, 2025 (2): Fix issue where narrow strips would not have all their interlocking tabs generated. Also added advanced option “Show Assembled”.
• Feb 6, 2025: Add support for magnets (preview feature).
• Feb 6, 2025 (2): Small tweaks to magnet holes.
• Feb 6, 2025 (3): Added an option to give the locking tabs more clearance (looser fit).
• Feb 7, 2025: Add option for bottom chamfer,  rework advanced options for configuring margins, correct printable area of “Standard” baseplate.
• Feb 15, 2025: Added interlock option for using M3 screw and nut. Other refactoring for possible future features.
• Feb 17, 2025: Added support for Bambu's new multi-plate functionality.
• Feb 24, 2025: Add additional contact points to M3 screw and nut interconnect option for a more rigid assembly. Add Margin Skeletonization to advanced options.
• April 4, 2025: Add H2D baseplate option.  Reduce max 3MF plates to 20 to simplify script uploads.