I've been wanting wings for my miter saw for a long time but never could come up with a good way to mount them. For a variety of reasons I finally broke down and bought a Kapex this week. While I was tempted by the UG wings, I found out that I could actually make my own quite easily. I'm really happy with the results. I may replace the heavy Ridgid stand sooner or later, but however I go, I can easel move them to any other stand since all the stand does is hold up the far ends--and I could easily a folding leg too. A lot of ideas for these came from a friends similar wings, with some refinements in the clamps.
T-slots for crown stops
Clamps engaged. A piece of machined UHMW fits into the v-grooves on the saw for locators.
Clamps not engaged