I think it is not such a good idea to bring the router bracket down right to the bottom of the router. I would have at least 25mm [1"] of router body below the bracket (below the z-slide tip as well). This makes it easier to fit the
Number 1 Dust Management Device. . . . . the simple air blast deflector:
The simple/effective deflector shown above could be shortened down to only about 20mm [3/4"] tall without losing efficiency.
An air channel only about 10mm [3/8"] wide is needed for the router to breathe sufficiently - you can calculate the slot areas if you are really bored.
In John's case above, I would leave the bottom bracket connected to the bottom tip of the slide, but I would move the router and top bracket down by 30mm [one hole spacing on the z-slide]. (Are those extra rollers in the middle of the z-slide starting to make sense?
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