Domino XL: Cutting a Mortise in Headboard

[flybynite]

I am building a bed using a the domino connector system and want to know the best way to drop a mortise in the middle of the headboard for the center support stretcher.  I can use the fence as a reference on the stretcher itself, but have to raise the fence to cut the mortise on the headboard.  There does not appear to be a good index on the XL of where the bottom of the fence would be when raised  [crying]

 

[Gregor]

You can use the bottom of the machine as a reference, gives you exactly 15mm offset to the center line of the mortice created.
https://www.festoolusa.com/-/media/...oads/manuals/domino_xl_df700_supplemental.pdf

You can use the alignment marks (page 12) and the center line on the baseplate (page 7) for free positioning on a flat surface, but clamping something to the surface to get a reference edge to push the machines base against (page 17), makes it easier as it helps against accidently rotating or relocating the mortice while doing the plunge.