Hey Russell,
a cyclonic dust separator always takes some suction power (even if you find it basically useful). I own a workshop vacuum cleaner with cyclonic separator too, but I don’t consider a workshop vacuum cleaner to be the right thing to extract the dust from stationary machines at all. They go with sanders and other hand tools etc. which always have an extraction fan inside, but on a CNC milling machine, like on a table saw or a thicknessing planer, you have to span larger distances when sucking.
(By the way, your link gives “Access Denied
You don’t have permission to access “http://www.homedepot.com/p/RIDGID-16-Gallon-6-5-Peak-HP-NXT-Wet-Dry-Shop-Vacuum-with-Cart-Fine-Dust-Filter-Locking-Hose-and-Accessories-HD1800/304795088” on this server.”)
me personally, no vacuum at all. See here