I am debating whether or not to chamfer the long sides of each plank in my new kitchen table top (6.6' x 40"). The reason I am leaning towards doing so is that there are 7 planks each about 5.5" and the grain pattern around the joints is very dissimilar - a mix of great birdseye / figured maple and plain maple (I wasn't intending to build a birdseye table but the wood was the same price for the plane variety and I wasn't thinking about matching at the time). chamfers may make the different more part of the design, i'm hoping.
Anyway, I was pondering not chamfering before glue up to see how it looks. If it looks bad, then I could route a v-groove along the lines. Would the v-groove be the same a a pre-glue up chamfer? i think so, plus would avoid having to get glue out of the groove after glue. pros / cons of either way? Also, how much of a chamfer do folks generally do? I'm thinking smaller the better.
Any milling operation will be easier after the table is glued up. Make your tabletop oversized and glue it up. Once the glue has cured, you can trim the top to length with a circular saw and edge guide.
From there you can decide if you want to rout a roundover, chamfer or other profile.
Seems like before would be a heckuva lot easier. After you needing a guide, a plunge router (if the chamfer isn't continuous), or a whole lotta chiseling. I suppose there might be a plane which would work, but before takes a lot of the risk out. Even if you botch one before. You can rip an eighth off and go again. A mulligan. A botched move post glue, means ripping the top down for the mulligan. Circular saw style.
I did the barn door I made after the glue up.
It's pretty easy to run a router down a straight edge. I have confidence running the router, so that risk was taken out of my reasoning when deciding.
The barn door was a pretty big glue up and it would have been a mess trying to get the glue out of the grooves on both sides with bar clamps in the way. If I did it again, I still would have done it after.
Are you doing tongue and groove?
Or just plain jointed edges?
If you do chamfer before, tongue and groove provides lineup, if not, and you are out even a slight amount, you will have to plane the boards flat. And re-chamfer.
I like pre-chamfer, but use tongue and groove to guarantee alignment. If not I would just use a V bit in a router and run it do create the chamfers after planing it.
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