Universal Mobile Armband
thingiverse
Its a Universal Mobile Armband (UMA) for most phones, originally designed for the Galaxy Grand Prime. You may need to scale the model to fit some phones, remembering to adjust the bands as well. Alternatively, you can skip the bands entirely if you find Velcro straps that match the slots. The cut-outs on the bottom are designed for LEDs powered by coin cell batteries, while the side cut-outs are intended for led strips. You should still be able to press the side buttons on your phone with the scaled model, ensuring a snug fit. Updated licensing allows sharing freely!
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