Hello I come to your forum because I don't know much about mechanics, let me explain,
I have a plastic sphere I print using a 3D printer and I would like to put a usn key in it with an ejection system,
the diagram and I put my USB stick in the hole it clips inside automatically, then if I want to make it stand out I press a button on the surface of the sphere and it comes out, how do you see it, I use Blender and Design Park even though I just installed Design Park
Here is a more understandable diagram, thank you have a good day.
Another proposal on a principle that only uses the deformations of the part. Geometry and thicknesses to be adapted according to the USB key, the material, the printer...
Attached model in step format, retrievable in principle with DesignSpark.