Large building bricks compatible train car

prusaprinters

<p>The standard little cars that you get from Lego Duplo have one fatal flaw: they are not compatible with the Duplo train! They run on the tracks but the wheels are too wide and can't pass the switches and get stuck all the time.</p> <p>Therefore I designed an alternative little Duplo car that works with the train tracks.</p> <p>You need to print the body and the 4 wheels. If you have a suitable O-ring at hand, push it over the wheels, I used a 20x27x3.5mm O-Ring. But you can also print the included O-ring file from flexible filament.</p> <p>There is also a connecting rod which needs to be printed from high quality PETG since it is prone to breaking. It looks great but I only got one working version so maybe not the first choice for the first test.</p> <p>If the wheels are not moving freely use a bit of sandpaper and a drop of vegetable oil. This also gets rid of squeeking.</p> <p>I recommend to print from PETG since it is less brittle and does not produce sharp edges in case something breaks.</p> <p>I uploaded a short video so you can see the train in action <a href="https://youtu.be/1EHsoNpzt5g">https://youtu.be/1EHsoNpzt5g</a></p> <p>There are two versions of the car body included. Both work, just use the one you like better.</p> <p>All parts should be printed without supports</p> Category: Toys & Games