You realize if you had a hand plane you'd have been done a long time ago?
I promise you're going to find your ww'ing is going to another level when you do.
I know. I do intend to hand plane the top after glue up. I’m just not confident in my skill to get two edges perfect. I did work on two of the edges with a handplane for a while (when the boards were rough sawn and hadn’t even been through the planer yet) but I just couldn’t get it to match up.
Anyhow. I got it done with the router. I used the aluminum fence, and stabilized it with blocks clamped behind it. I routed the edge of the first board, and then moved the second board next to it, separated by just less than the width of the bit. Clamped that in place and routed again. A couple of passes and some patient adjustments, and i have perfectly flush edges.
Thanks for everyone’s suggestions.
I was thinking of using dowels, not for strength, but to help make sure the top faces align when gluing up and clamping. Good idea? Bad idea?
Also, the top is five boards, currently just under 4’x8’. I was thinking of doing the glue up in phases, rather than all five at once. Glue two, wait for them to dry, glue a third on, wait, a fourth, and so on. Good idea? Bad idea?