My roommate Rob has a Unimat multipurpose machine tool which had been sitting around for a long time not being used for anything since we already have a full sized mill and lathe in our apartment shop.
We came up with the bright idea a few months ago of using it as a cross-sectioning saw by setting it up in the lathe configuration and putting a Dremel abrasive cut-off disk in the chuck. We then put the milling table on the carriage and clamped the workpiece to that. The end result is a tiny little abrasive-bladed cutoff saw, as used in most of my previous PCB/BGA cross section photos.
|Unimat tool set up for cross-sectioning|
The end result is that we can position each arm directly over the location of the cut and turn on suction for that intake only.