The problem with deep cutting is that the feed speed is usually greatly reduced because of the increased load on the saw blade, this reduces the chip thickness being taken by each tooth, the result is that instead of having a cutting action the teeth now operate with a scraping action and this increases the load on the blade. This can have a rapid blunting effect on the teeth especially with hard and abrasive timbers. and causes the blade to be deflected in the cut.
When ripping (or cross-cutting) larger sections of wood using a handsaw we normally alter the angle at which the saw is cutting as we progress along the cut because it is easier and faster to do it this way.
The reason for this is that by altering the angle we reduce the length of the cut and increase the tooth bite thus increasing the efficiency of the cutting action.
This can be achieved on a bandsaw (or circular-saw) by alternately raising and lowering the end nearest to you as the cut is being made.
If a lot of material is to be cut a saddle (hump) perhaps 10mm high or so fixed in line with the teeth will allow a rocking action to be made when cutting.
Hope this helps Dan
When ripping (or cross-cutting) larger sections of wood using a handsaw we normally alter the angle at which the saw is cutting as we progress along the cut because it is easier and faster to do it this way.
The reason for this is that by altering the angle we reduce the length of the cut and increase the tooth bite thus increasing the efficiency of the cutting action.
This can be achieved on a bandsaw (or circular-saw) by alternately raising and lowering the end nearest to you as the cut is being made.
If a lot of material is to be cut a saddle (hump) perhaps 10mm high or so fixed in line with the teeth will allow a rocking action to be made when cutting.
Hope this helps Dan
