Hello, I have just started looking at various references on how to make a box with a curved lid, as one of my next projects to up my box making skill levels. I am still very much a novice, with each new step in box making being quite nerve wracking as you know one silly little mistake can ruin your work :)
Here is an extract from one online reference:
Coopering is a method of making a curved panel, similar to the way a barrel is constructed. Having prepared a 12mm- (1/2in) thick board, it must be cut into eight equal-width strips. The strips will be re-joined edge to edge, but first they must be bevelled at an angle of around 88 degrees.
You will need to make a pair of concave formers to hold the strips in position, each strip slightly tilted from its neighbour while the glue sets. The formers must be concave so the strips sit inside the curve and the clamping pressure pushes them together, rather than springing them apart. Pull the mahogany strips together with strap clamps around the formers.
With the glue set, the panel will be shaped as a series of straight sections. To turn it into a curve, you must carefully plane away the protruding outside edges of the joints. You can do this with a finely set smoothing plane, tilting the sole with successive strokes so as to fair the surface into a curve. The inside surface of the panel needs to be shaped with a convex soled plane to produce a smooth curve inside the lid.
My question is how to flatten the edge joins in the inside concave surface if you don't have a convex shaped plane?
Can anyone please advise on how to go about this, or whether there is a better method of making a curved lid?
Here is an extract from one online reference:
Quote:
Coopering is a method of making a curved panel, similar to the way a barrel is constructed. Having prepared a 12mm- (1/2in) thick board, it must be cut into eight equal-width strips. The strips will be re-joined edge to edge, but first they must be bevelled at an angle of around 88 degrees.
You will need to make a pair of concave formers to hold the strips in position, each strip slightly tilted from its neighbour while the glue sets. The formers must be concave so the strips sit inside the curve and the clamping pressure pushes them together, rather than springing them apart. Pull the mahogany strips together with strap clamps around the formers.
Quote:
With the glue set, the panel will be shaped as a series of straight sections. To turn it into a curve, you must carefully plane away the protruding outside edges of the joints. You can do this with a finely set smoothing plane, tilting the sole with successive strokes so as to fair the surface into a curve. The inside surface of the panel needs to be shaped with a convex soled plane to produce a smooth curve inside the lid.
My question is how to flatten the edge joins in the inside concave surface if you don't have a convex shaped plane?
Can anyone please advise on how to go about this, or whether there is a better method of making a curved lid?
0 commentaires:
Enregistrer un commentaire