Tutorials
Logic Timer
Logic Timer is used to trigger something at a set or random interval. In this example, I have used the logic_timer to make steam come out of a pipe every 5 seconds, for 5 seconds. Start off by placing a logic_timer and an env_steam entity. In this example I am using a pipe for the source of my steam.
Go into the properties of the env_steam, and name it "steam" and change the angle if you want to. Next go to the logic_timer properties. Goto the Outputs tab and copy the settings below.
And thats it! You can use this for lots of other things as well. Like having lights come on and off randomly, or doors opening. Have fun!
SiLenTDeaTH