I am changing the #Stemfie3D screws, making them thicker (4 to 5 mm). This change makes all fasteners the same thickness, including shafts and spring pins.
This allows for an internal axial hole and makes them stronger and stiffer; it also gives the screws a larger thread surface and reduces the play inside the part holes.
You can expect the old 4 mm fasteners to be phased out and the new ones introduced soon. All the latest files are available at get.stemfie.org.
This toy is unsuitable for children under three years due to choking hazards! 
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