woodbrains":z05k0nk8 said:
Hello,
Here's a thought no one has considered. Make the table and then true up the legs! Slight variations caused during assembly, including fitting the top, so do that too, will invariably cause the bottoms of the legs to not be co planar. Final trueing up is best done as a last step, so too much fussing on each individual leg is often wasted. Cut accurately to a knifed line and leave it at that until the table is glued up. You'll likely find an amount from the bottoms of at least two legs has to be removed to get the table to sit on a flat surface. Chamfers on the leg bottoms make the small adjustments needed easy to do by planing and eliminated spelching.
Mike.
Agree. In fact normal practice - except the knife lines. No point in knife marks if they are to be trimmed or left, due to slight variations.
"Marking knife" is a misnomer - they should not be used for "marking" (unless to make indelible marks)* but should be reserved only for those marks which are best started as a knife cut e.g. the visible side of a tenon shoulder (but not the other side) and other precise things such as inlay, veneer, small boxes etc
The OPs 4" table legs:
many saws would do but ideally a 6tpi hand saw.
Cut close to the pencil line without actually removing it. Or allow a few mm over. This to be trimmed off at the end of the construction as a bit of extra length will protect the ends as it is being handled and bashed about.
At no point should the saw exit the wood except via a cut already made, except the first nick - start with a backwards pull on the far corner then saw forwards into this nick, across the top then down the face in front of you until you have cut half through diagonally. This way the saw is always in the cut whilst being guided down just one line and there is no risk of spelching.
Turn it over and complete the other diagonal cut starting with the saw well in the cut already made, as you guide it along the lines of the remaining two faces.
If you have a little extra length you could bevel down to the lines (which is where a block plane is handy) and then remove the middle with a bigger plane.
The bottom of a table leg is usually bevelled anyway, to stop it spelching out when dragged across the floor.
*marking indelible marks - this is just a theory of mine but I have found old woodwork with knife lines for the mortices but on one side only - the back, out of sight. My theory is that a senior would have made these marks from the rod and then passed the work to a junior to complete, with accurate marks already indelibly in place.
It's easiest to do the first shallow cut on the bench on hooks but all the others from above on a saw stool, holding it down with your knee.
PS there was a mention of "fine finish" somewhere above - but you don't want fine finish from a saw cut as sawn surfaces are always out of sight. But you do want accuracy (a co planar surface) and you may well want a clean edge, which may be easier to achieve after the saw cut with a plane etc.