Blindfold Test of 3D Models; the Solar System & the Neuron - 2025

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On February 24, 2025, members of "Project Wings to Dreams" conducted a blindfold test to check the design and accessibility of 3D tactile models for students with visual disabilities. A member of the computer team participated in the test, and observations were recorded to improve the models. The session focused on two models: the Solar System and the Neuron Structure.

The "Solar System" model represents the sun, planets, and other celestial bodies. The blindfolded participant did not struggle with orientation because of previous experience with similar models. However, some challenges were noted. The model was too large, making it difficult to locate Mercury and the Sun. The distance between Uranus and Mercury on the index side was too wide, causing confusion. The asteroid belt between Mars and Jupiter was also hard to recognize. Feedback suggested improving the Earth's texture and adjusting Braille labels for better navigation.

The "Neuron Structure" model shows the different parts of a neuron. The participant could feel the model's circular edge and its borders but could not identify it without an introduction. Some areas needed improvement. More dendrites should be added to make Soma easier to find. The label for the Schwann Cell should be placed before the Myelin Sheath because users feel it first. Also, the QR code position should be mentioned in the introduction to help users locate it easily.

These findings show the need to improve tactile learning tools for students with visual disabilities. Making changes to texture, labeling, and spacing will make the models easier to use. This process helps create better learning materials that support all students.