Buoy

A slightly simplified version of a data-collection buoy as built by Nortek BV. Data collection buoys like these are used on lakes or near shore sea for measuring water parameters like waves, currents, temperature, salinity and turbidity.
I scaled down the original design and modified some features to make them printable.
The 'Buoy_float_half' has to be printed twice and the halves should be glued together.