I've been using a shop vac for about 3 years now. About the only option when you have neither the physical space nor the electrical power to run a dedicated dust collection system. Not as efficient as a dedicated system does work pretty well. George is correct though, unless you add a Dust Deputy, Thein baffle or some other means of separating out the dust and chips, you can go through a phenomenal amount of vacuum cleaner bags. I put on a dust deputyI have a 5hp rigid shop vac that I wouldn't mind using for a dust collection system. Is it doable? What upgrades/modifications would you suggest for this to be a good system. Will I be replacing the filter all of the time?