Customizable Bathroom Radiator Hook (double rounded)

This is an improvement of the (previously) best customizable radiator hook on Thingiverse ([this one](https://www.thingiverse.com/thing:3342912), by DeltaPlus). It changes the rounding of the actual hook tip to a radius in the yz-plane, making it easier to hook on towels etc. that come with a little fabric loop for attaching to hooks.

Before printing, you should take measurements of your radiator. Details of the measurements are in the pictures. The hook should be mounted tightly on the radiator. It is mounted by pressing it with some force, until it clicks and locks into place. See under "Print Settings" for how to make a flexible enough part.

In the Customizer you should change values for variables "diameter" and "distance". You can leave the values of other variables unchanged.