- 28 Dec 2007
- Reaction score
There is sufficient evidence from studies (some of it mine) and anecdotal reports that the size of the mouth is no longer of any importance at about 55-60 degrees.The tests done also suggest that a plane with a widish mouth setting might be persuaded to reduce or eliminate tearout by the use of close-set or tight-angle cap-iron, and it seems that David C has already tried a few experiments 'in the field' with some promising results - see Bugbear's thread. So tight mouths may not be always necessary - and wouldn't work anyway with the 80 degree cap-iron, because the shaving escape would be blocked.
With regards the cambered iron, the camber on a smoother is very small. Nevertheless it seems to me that it would still be too large to allow the chip breaker to get to the desired distance from the edge, and even if it did, it would be uneven. If serious about this technique, one should also file the chip breaker to match the camber.custard":2n89jc0v said:What are the implications of a 0.2mm cap iron setting in terms of,
1. Cambered iron?
2. Back bevel/ruler trick?