Reply by toolie

this is a good overview:

http://www.newwoodworker.com/basic/tsalign.html

and these guys have a delta splitter (part # 1349941) that’s $60 shipped, but it doesn’t include a blade guard:

http://www.sawcenter.com/unisawparts.htm

there’s the B.O.R.K.:

http://www.theborkstore.com/

and also the shark guard:

http://leestyron.com/

-- there's a solution to every problem.......you just have to be willing to find it.