So this one is a real quick look, taking the rotation tool in Illustrator and looking at a quick and simple way of changing the centre of rotation.

So this is what I’ve got, a simple triangle shape.

Hit R to quickly bring up the rotate tool. Doing so brings up an aqua cross hair to show where the centre of rotation is, this isn’t like Photoshop where you can drag it to where you want it. Instead hit Shift + R where you want the centre to be, if you want to reset it you can just pick another tool and bring up the rotate tool again.

You can press Alt + R to bring up this rotate tool dialog box and change the centre of rotation.

Make sure you check Preview to see what you’re doing. And that’s about it really.

Quick and easy.