Duplo Brick to Brio Track adapter with snap-lock

by Zydac, published

Duplo Brick to Brio Track adapter with snap-lock by Zydac Sep 9, 2010

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This is an adapter to attach Brio style wooden toy train tracks to Lego Duplo compatible brick constructions. The idea was to adapt between two incompatible commercial toy systems, something that would never happen in the retail world.

Useful for building elevated train tracks, subway stations, Highlines, and crazy buildings with trains going through them.

This is a derivative of "parametric lego duplo by danielkschneider"

Update: 2010.10.22 I updated the file with a much cleaner rebuilt STL.


Snap tracks into adapter and stick it on some Duplos. Impress child by constructing Chicago Loop!

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Jan 12, 2016 - Modified Jan 12, 2016

The bottom didn't print right for me. It was a mess. It doesn't look right in the makerbot software, but looks okay in openscad.

I am having troubles compiling Gcode in slic3r 072, 094, and 097, but not in skeinforge.  I get a non-manifold error.  Also tried to clean it in netfabb cloud and failed, and also looked at it in tinkercad and it looks non-manifold in the duplo part.  Anyone else?  When I did print it (slic3r), it just "fixed" it by making the bottom solid :(.

Yep, I have the same problem. It has a combination of non-manifold edges and inverted normals that is making it difficult to fix.

My friend emailed me and said, "Hey, I need one of these adapters. Can you print me one out?" A few hours later it was complete.

So cool to just materialize stuff!!

Here's a video of the final piece:

The stock Brio wooden elvated track holders are so delicate (of course). 2 years ago, my younger boy would be always getting in trouble from my older boy due to his lack of coordination around the elevated track sections. If only I had a bunch of these awesome creations back then...

Brilliant work, Zydac.

absolutely brilliant. I need to print one of these when my Cupcake is running again.

Great example of what a company would almost never do. Make it compatible with a competing proprietary toy makers' product. Power to the creative prosumers 8-)

Zydac - in reply to Erik

Thanks! So long as I don't hear from the Lego family's notorious litigation team!

Full of awesomeness!

Some ramp bottom and top pieces might be cool too.

Fantastic!!! I'm going to print a bunch of these!

This is amazing. I want a whole line of toy convertors

These are the two bigs of toy production. No way this would happen in the real world, but here you have made something that kids are going to LOVE.

A game-changer for 3-year-olds.

The wonders of at home production... you would never see an adapter between two different brands of toys like this