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3D Printed Otoscope

An otoscope is simple device used in the diagnosis of ear, nose, and throat diseases. It is essentially a magnification lens with a light and speculum to help open orifices and direct the light.


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A full description of this model and assembly instructions are listed at http://www.appropedia.org/Appropedia:3D_Printed_Otoscope

Materials and methods

Printed Parts:
The main otoscope body weights 20 grams.
The battery cover weights 6 grams.
The switch cover weights 2 grams.
The circular base on which the lens assembly and the speculum mounts weights 5 grams.
The ear piece weights 3 grams.
The lens assembly weights 3 grams.
Other Parts:
A SMD pushbutton switch is used to activate the otoscope's light. The approximate cost of this part is $0.57.
A white LED is used to shine light into the ear.
A 220 ohm resistor is used to limit current draw.
A 38mm diameter, 150mm focal length concave lens in used.
About half a meter of 22 gauge solid core wire is used.



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