Triangle key for bus stop advertising space

I made this tringle key to get access to advertising space on bus stops.
The key has 11mm external diameter.

I sugest 100% infill, but I think You can get away with 3-4 perimeters and anything above 50% infill.


Key broke after one use. New design is much stronger thanks to metal wire from 51mm bulldog clip. Just detach wire from clip and straighten it with pliers. U need more or less "U" shape. Then heat it with lighter an jam it into holes in printed part.
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