Odd shape for a 3d model

Hi, I'm new to 3d models in Photoshop. I'm experimenting with creating elements of products so I can show them at different angles without having to do a huge photo shoot. Every tutorial I can find creates very symmetrical objects. What are the chances of creating the object below (the blocky shape) in 3d? Is creating parts of it and putting them together on the right track? Any pointers? Thank you for any feedback.