Bill Tindall, E.Tn.
Every time I thought I was near done with this table some dangling step rose up to challenge. The last straw was the slat shelf. The slats were cut from 8/4 plank and some decided not to play nice with the others.
Slats were cut to size and notch cut.
Made temporary spacers exactly the thickness to equally space the slats
Installed slats-slat, spacer, slat, spacer, etc.
Double pin nailed slats to stretcher
screwed slats to a stick of wood beneath slats at their center to hold the bundle flat
All this arrangement fixed them equally spaced and flat in spite of some's crankiness.