Robin Lee schreibt bezüglich Veritas Bevel Up Jack *MIT BILD*
Verfasst: Mi 13. Mai 2009, 23:08
[In Antwort auf #124469]
Hi Marcus,
Sorry for replying in English - my German is limited to being able to order Koelsch.... :)
It seems to me that what you are describing is the result of a small amount of bed skew - where the blade bed is tilted to one side or the other by a small amount. This is usually an issue with low angle planes (of any design), as the tolerances involved are very very tight. In addition, the wider the plane, the more it will become visible.
Looking at a 12 degree bed angle plane, a difference in bed height at a fixed distance from the edge of the mouth of just .0005" will require you to feed one side of the blade forward by .0025" more than the other side - which will create a visual difference in the gap between the blade edge, and the sliding toe of the plane (if the blade is projected evenly). If you set the blade parallel to the toe (visually) - you'll find that the blade does not now project evenly.
The only way to eliminate this visual gap, is to set the blade to project evenly - and then fettle (file) the edge of the toe to be parallel. I would note that this is a one time operation... once done, it does not have to ever be done again.
The good news is - this is only a visual issue, and should have no impact on the performance of your plane. If you are planing with the correct effective cutting angle for the wood you are working - a small amount of variability in the mouth opening ahead of the blade will have no impact on cut quality - sharpness and effective cut angle are the prime determinant of cut quality.
As with any Veritas product - we will stand behind it 100%... if you wish - I will be glad to replace your plane for you - just contact me directly at rlee@leevalley.com .
Cheers -
Robin Lee
Hi Marcus,
Sorry for replying in English - my German is limited to being able to order Koelsch.... :)
It seems to me that what you are describing is the result of a small amount of bed skew - where the blade bed is tilted to one side or the other by a small amount. This is usually an issue with low angle planes (of any design), as the tolerances involved are very very tight. In addition, the wider the plane, the more it will become visible.
Looking at a 12 degree bed angle plane, a difference in bed height at a fixed distance from the edge of the mouth of just .0005" will require you to feed one side of the blade forward by .0025" more than the other side - which will create a visual difference in the gap between the blade edge, and the sliding toe of the plane (if the blade is projected evenly). If you set the blade parallel to the toe (visually) - you'll find that the blade does not now project evenly.
The only way to eliminate this visual gap, is to set the blade to project evenly - and then fettle (file) the edge of the toe to be parallel. I would note that this is a one time operation... once done, it does not have to ever be done again.
The good news is - this is only a visual issue, and should have no impact on the performance of your plane. If you are planing with the correct effective cutting angle for the wood you are working - a small amount of variability in the mouth opening ahead of the blade will have no impact on cut quality - sharpness and effective cut angle are the prime determinant of cut quality.
As with any Veritas product - we will stand behind it 100%... if you wish - I will be glad to replace your plane for you - just contact me directly at rlee@leevalley.com .
Cheers -
Robin Lee