Here's our simple jig. Been meaning to make one out of aluminum/plex, all nice, but well, eventually This one originally accommodated a standard Porter Cable router then we wised up to make use of a trim router. The jig is placed onto the back of the panel, then with the router running, slowly lower the router until it rests in the jig pocket butted to the bottom part, then slide the router up to meet the top (1-1/2" or however long slot you like), then remember to slide the router back to the starting position before removing from the jig.



jig bottom..jpgjig top view..jpg
On the bottom there is a piece of laminate attached which acts as a guide; after you have the laminate piece adhered (BTW we use high tack double sided graphic adhesive "Gudy 808", but in the past we have also used hot glue and contact adhesive) to the back of the gator panel and parallel to the edge, then position the jig so that the bottom laminate piece butts up against it, then the keyhole slots will all be at the same distance from the top edge since you have to plot out the screw locations accurately for this to work right.


keyhole..jpgkeydetail..jpgmultiplekeys..jpg
I can post more pics or verbage if you need. If I ever manufacture another version of this I'll post. Thanks for your interest, good luck!