I thought I'd share this project I made a few years back. I think this was my first scratch build. I've seen SO many online since then that are amazing and put mine to shame. It was a great learning experience though and you have to start somewhere. The plans you can find online for this are amazing and will make it very easy to make your own or to expand on with a bit more detail. The only innovative thing I really did was use old mage knight bases as attachment points for the arms which allowed them to rotate and be interchangeable.