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Step 4Chopping Out Joints
There's an absolutely bewildering array of joints that can be cut into wood, some taking a great deal of skill to set up correctly. I'm just going to show you the most basic skills to cut one piece of wood to fit around another.
Pic 1: First, you need to mark out exactly what you're going to chop out of the piece of wood. I'm cutting this length of 40 x 40mm wood to fit around something measuring 25 x 50mm. It helps to shade it out too becasue that way no matter how many time you turn the wood around, you can always quickly see what's going to be cut out.
Pics 2 and 3: Start just like with the other joints, cutting a small groove on either side of the block to remove, keeping things square and working down as far as you need to. Then make more parallel cuts throughout the block to split it into lots of smaller blocks.
Pics 4 and 5: Now use a mallet and chisel to indent down the line at the bottom of the blocks you've cut into it. They're going to be knocked out in a minute, and this line makes sure that they won't take wood with them that should be left intact. Indent the line on both sides!
Pics 6 and 7: Now put your chisel in the line and gently tap it into the wood to split blocks off. Keep going until you end up with something like in pic 7.
Pics 8 - 10: This won't quite fit, so it needs to be made concave. From slightly forward of the edges, work slowly in and down with the chisel and the excess will come up as strips like in pic 8. Cut these out by going down into the ends of them like in pic 9, and repeat until you end up with a concave joint like in pic 10.
That's it. As you can see in pictures 11, 12 and 13, it fit's adequately though not perfectly.
Pic 1: First, you need to mark out exactly what you're going to chop out of the piece of wood. I'm cutting this length of 40 x 40mm wood to fit around something measuring 25 x 50mm. It helps to shade it out too becasue that way no matter how many time you turn the wood around, you can always quickly see what's going to be cut out.
Pics 2 and 3: Start just like with the other joints, cutting a small groove on either side of the block to remove, keeping things square and working down as far as you need to. Then make more parallel cuts throughout the block to split it into lots of smaller blocks.
Pics 4 and 5: Now use a mallet and chisel to indent down the line at the bottom of the blocks you've cut into it. They're going to be knocked out in a minute, and this line makes sure that they won't take wood with them that should be left intact. Indent the line on both sides!
Pics 6 and 7: Now put your chisel in the line and gently tap it into the wood to split blocks off. Keep going until you end up with something like in pic 7.
Pics 8 - 10: This won't quite fit, so it needs to be made concave. From slightly forward of the edges, work slowly in and down with the chisel and the excess will come up as strips like in pic 8. Cut these out by going down into the ends of them like in pic 9, and repeat until you end up with a concave joint like in pic 10.
That's it. As you can see in pictures 11, 12 and 13, it fit's adequately though not perfectly.
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