It's a simple tool for designers to measure radius of an object with different sizes from 1 mm to 15 mm. It's a usefull tool to measure round cornes that you have difficulties to measure with vernier caliper.
Tuna is 14 years old maker candidate. He wants to be designer and real fun of 3D printing and arts. He is 8th Grade student at BLIS in Ankara, Turkey.
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