I have printed a bunch of supports according to the model made by Kerndrup (to whom I thank once again) but the top part breaks very easily.
In order to make it more durable without exaggerating the consumption of the material, I remixed the upper part so that I can print it in such a way that I can increase the number of perimeters.
4-5 perimeters are enough for me, now the model does not break quickly.
It is possible that the fragility of my prints is due to the poor quality filament. With this modification, I can print with the same filament, avoiding waste.
The author remixed this model.