You can automate screenshots in mac os x with screenbar. It’s a menu bar application from where you can start and stop a timer that takes a screenshot on a set interval of seconds.
Update 2018
A newer version with updated GUI and functions can be found on Mac app store
Continuing post
I’ve written before about a terminal script that takes a screenshot every 5 seconds and saves it to your desktop. That is what Screenbar does but you get a user interface in the menu bar where you can start and stop. You can also set how many seconds the program should wait before taking the next one. I needed this program myself when taking screenshots for a game i’m working on.
Installation
You can either download Screenbar from the app store or you can download the repo and build it yourself with Xcode.
Usage
To start taking a series of screenshots you click on the Screenbar icon and select Automatic Screenshot. They will we saved on your Desktop.
To stop the automatic screenshots go back to Screenbar and click Stop automatic screenshot.