MacOS – Custom Screensaver

I found this Apple scripts web page with examples.

There is a line in this script for the change of interval time allowing you to specify it, and you can customize the rest of the script to your needs.

tell application "System Events"
 -- RANDOM ROTATION OF A FOLDER OF IMAGES
 tell current desktop
 set picture rotation to 1 -- (0=off, 1=interval, 2=login, 3=sleep)
 set random order to true
 set pictures folder to file "Mac OS X:Library:Desktop Pictures:Plants:"
 set change interval to 5.0 -- seconds
 end tell
end tell

The same thing happens to me in 10.9. I also tried changing require password to wake of security preferences and putting displays to sleep instead of starting a screen saver:

tell application "System Events"
    set require password to wake of security preferences to true
    --start screen saver "Random"
    do shell script "pmset displaysleepnow"
    delay 5
    set require password to wake of security preferences to false
end tell

Neither of them helped though.

You might log out to the fast user switching screen instead of locking the screen though:

/System/Library/CoreServices/Menu\ Extras/User.menu/Contents/Resources/CGSession -suspend