In general, weapons, not something that would be my profile) but sometimes I want to model something like this. In this case, there was also another reason - I recently switched from 3DMax to a Blender and in order to consolidate my knowledge, get new ones and just get used to it, I decided to model something relatively complex. On the character, you can not really turn around in this regard. Just do not scold too much for the design) I did it on the fan, you can say for sure there are enough inaccuracies and just strange solutions.