If you don't want to use supports, it's mandatory the use of adaptative layers (mini tutotrial in the photos).

1. Slice the model.
2. Go to prepare and click in the adaptative layers icon.
3. Use mouse's left button to compress the layers (it will become green).
4. Adapt only the part that was marked as blue in the initial slice.
5. Dont's press again slice, just go to prepare and the model will be modified.

The model has been optimazed for a 0.6 nozzle, but it can be printed with all nozzles sizes.

It's a simple model, so no need for further changes.

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