Paul Kierstead
Established Member
dchenard":147wdxiw said:I have no data to support this, but it seems to me that a cambered joint introduces a gap just where we don't want one. Granted, the gap is small, still it's there, and I'd rather just to without a potential joint failure cause.
Well, there are a lot of combo's to be considered. First off, on a conventional sized edge joint (in the 3/4" ballpark), the amount of camber is extremely small unless you are jointing with a scrub plane. It would normally be well under 0.001". However, if the joint is clamped, the edges will certainly crush a little and eliminate even that very small gap; if you leave a very very small hollow in both directions and clamp, you are practically guaranteed a very tight joint with a fair minimum of clamping. If you are doing a rub joint, I think the rules might change a little, although again, the hollow is extraordinarily small, so who can say. The bottom line is that it works; it is possible to over analyze it.
Traditionally you'll see a lot less joints depending on glue strength alone in positions where strength was required.