Two-point discrimination tool

Two-point discrimination tool

thingiverse

This is a simple two-dimensional object that can be used for two-point discrimination (1, 2, 3, 5, 8, 12, 18, 25mm separations) https://en.wikipedia.org/wiki/Two_point_discrimination. It can be laser cut out of old OHP transparencies or 3D printed at a very low cost and with great precision. Perfectly suitable for testing receptor density on different areas of skin, although the separation might be too close for poorly discriminating areas. Young school kids can also benefit from using this tool as it's unlikely to cause significant harm due to its sharpness. More advanced devices are available, but for most purposes, this one works just fine. It was created with Solvespace (a free and excellent software) and the tip separations can be easily adjusted in the program. The design could be simplified further, but it still functions as intended. Simply cut out or print the object and have fun experimenting!

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