Infant toy - Object Permanence Box V4 (OpenSCAD)
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This is version 4 of the infant toy - Object Permanence Box. It's prettier and has a long window for viewing the ball.
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- Other 3D Objects for Learning
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Object permanence is the understanding that whether an object can be sensed has no effect on whether it continues to exist. This is a fundamental concept studied in the field of developmental psychology. You can read more about it here: https://en.wikipedia.org/wiki/Object_permanence
This infant toy is an over engineered version of the Montessori Object Permanence toy. The little kid sits next to the toy and picks up the ball then drops it in the hole. Kids at the right stage in development are thrilled with this toy and do it many times in a row. Apparently their brains need the repetition to learn what is going on.
But in this over engineered version, the ball goes around in a spiral before coming out. This causes more noise and a longer delay as compared to the standard Object Permanence Box. Version 4 has a long window so you can see the ball in the spiral.
It's hard to see the internal structure, so I've provided a picture of the hole and also a cut away view. Another way to see the spiral is to look using the 3D viewer in x-ray mode.
Print with automatic supports. See the 3MF files.
The ball does not need any supports.
No assembly required.
The source OpenSCAD files are included.
Version 1 square
Version 2 rounded
Version 3 tall spiral
Version 4 taller spiral with slot window (this page)