I want to try putting together a quick vacuum generator that runs off compressed air (run of an 8 gallon tank up to 130 PSI.
I'll be using it for desoldering so I think I want a reasonably strong vacuum, but the volume is not all that high. It will probably be used in "burst mode" - with a burst of vacuum for a few seconds being needed intermittently.
Heaps of googling and patent searching has turned up lots of commercial products and on or two water powered vacuum generators but not much in the way of pneumatic ones.
I'm hoping for a real quick & simple design - any build one or point me to some plans?