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Easy to print droplet shaped bird feeder. 

When printed in original scale it is mainly useful for small birds like a finch or titmouse and you avoid bigger birds like pigeons or crows. 

Print Settings

It is designed for a 0.4mm Nozzle and 0.2mm Layer height and no supports.

For print settings as seen in the pictures open the .3mf file as project in Prusaslicer.

You should add a modifier to the bottom where you turn off solid bottom and top layers and change infill to ~50% honeycombed. This way when it rains the water will not be trapped and you will have no problems with bird-food-soup.