Discriptive Diagrams on lp, ebolt.

I am looking for some Discriptive Diagrams on the low pressure kit and the ebolt. I am looking to make a homemade ebolt. I already know much of the stuff. But I am looking for some things explaining how it works. And I think I want to do the ballisitic sports one but either would be fine. Same with the lp kit. Any diagrmas or info on how it works with pictures would be awesome thanks.