Kallax Splitter (without screws)

I needed a divider for my Kallax shelves but wasn’t happy with the options available, so I designed my own!

This design is completely tool-free — no screws, no nuts, no tools required.

There are two main splitter options:

• 50% Splitter – divides one compartment vertically into two equal parts
• 33% Splitter – divides one compartment vertically into three equal parts

And you can choose from three different depths to suit your needs:

• 24 cm – perfect if you don’t need to cover the full depth
• 19 cm – print two of these to cover the entire 38 cm depth
• 14 cm – great as an addition if you already printed the 24 cm version and later want to extend the depth

Printing tips:

If you have problems with the fitment of the pins, then try the following

• if printing the pins in horizontal position (faster)
  • lower the layer height for a smoother outline
• use v3 (different pin sizes) or scale the pins down a feq percent (1-2%) and print one pin at a time to not waste filament
• use min 3 wall loops with the inner/outer/inner wall order and Arachne wall generator
• you can also print the pins upright 
  • is a bit slower and the pins are now quite as strong but should result in better 3 dimensional accuracy
  • pins might snap between the layer lines, if layer adhesion is weak and the load on top is high

Version History:

Version 3

Improved the geometry (rounded edges, less material, adjusted tolerances, etc…). Also added other sizes of pins for better fit.

Version 2

A few users mentioned that the tolerances were a bit too tight, so the two parts didn’t fit together easily.

To fix this, I’ve created a new version that uses separately printed pins. These are printed on their own and then inserted into the main parts.

If they’re still a little too tight, you can simply scale the inserts down by a few percent in your slicer - no need to reprint the entire model!

Version 1

The connectors are 25 mm long with a tight but forgiving combined tolerance of just 0.13 mm. With the recommended print profiles, everything should fit together perfectly and snugly.

Thanks for checking out my model! 

I really hope you like it and have fun printing it!

If you have any questions, suggestions, or just want to share a photo of your finished print, I’d love to see it!

Happy Printing!

~Marco