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LDD is a closed world where people can't add its own parts. If you want to create Duplo building instructions you should use LDraw that has many Duplo parts in its library, and allows you to create the missing ones if needed.


I slid the Technic frame over an axle instead of a pin to see how far it would go. As shown in the picture below, it appears as if the part is too big to fit all the way because the rim (shown level with the red line) is too thick. LDD runs a basic collision detection to ensure that no parts overlap. In real life, certain combinations of parts are ...


Short answer is no. Maybe they will add it in the future, though.


Note that LEGO Digital Designer can also show you building steps, but the results have been known to be a little odd. I'm not entirely sure what you're asking here: Can I export models from LEGO Digital Designer as LDraw files? Yes, although you will probably need to update the LDraw.xml file that LDD uses to export the parts. Once you've completed your ...

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