Lillabo Duplo tanker and coupler components
thingiverse
A tanker and coupler components for the IKEA Lillabo car chassis, allowing for attachment of other Duplo parts. You can find the files for the cab in the pickup truck design ( https://www.thingiverse.com/thing:6259649 ). There are two holes in the bottom to take threaded pins which I fabricated using 3/16" (4.6mm) brass rod, threading them with a 10-24 die. M5 could probably also work. I think there are off the shelf fasteners that are available at specialty hardware store that would fit the bill (search for "headless shoulder screws"). This saves from having to print all that support underneath, just to have printed pins that are not that strong.
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