Model within the Component
I extrude cylinders using the Circle and Push/Pull tools, and add tapers by pressing Alt to start a new face when using the Push/Pull, tools. Employing the Scale tool while holding Alt will scale the face from the centre. I create and group smaller details, turn it into a Component and then multiply it using the Protractor and the Rotate Array tools. Meanwhile, I use the Intersect tool to create slots from the large tubes.