Duplo to Brio/Lillabo converter brick

This is a 3D printed piece that works as an interconnect between Duplo bricks from Lego and Brio or IKEA LILLABO wooden train tracks.

I was inspired by http://www.thingiverse.com/thing:4041, but after trying out a print, I found it too difficult for the 3 year old to put the tracks on, and I decided to make my own, slightly simpler design.

It's designed in OpenSCAD and I have uploaded the .scad file along with the .stl file, so that you can easily modify as needed.

There are two sets of files:

• The original ones, that are designed from the BRIO track and their dimensions
• New updated version that better fit the IKEA LILLABO, as they seem to have a slightly shorter connecting part

I don't have any BRIO tracks to test with at the moment, but they might actually fit, though sometimes maybe a little tight, which is the case for the LILLABO on the original design.