Ok Guys
Follow the link at the bottom to upload the Sentry Gun video.
I had lots of video to choose from (the game took over an hour), and this was my first time at editing.
The posts and brackets were made by Blackballs, the controls and electrics was designed by me (daddio), the gun and operation of unit by obsoleteacey.
The main PTZ unit was adapted from a propfessional series Pelco PTZ optics unit. The company I own had a 'spare' unit to play with.
The gun rotated 360 degrees, using slip rings, thus endless rotation.
The bungies was a big of Kiwi bodging