RETIRED
12th July 2010, 05:39 PM
Unfortunately due to a lack of time we could not do the Great Skew Face Off but it will be done shortly when I get organised.
This is the criteria I will be following for the test.
The test will involve roughing a 250mm x 75mm piece of Red Gum to a cylinder, a peeling cut to form a spigot approximately 25mm in diameter and 15mm long in one end,the other end will be rounded over. as many 12mm beads that the chisel will do along the remaining length.
Should the chisel still not be blunt, the beads will be removed by a peeling cut, the cylinder trued and more beads cut.
The "finish cut" will be performed after the above with the cylinder trued with a roughing gouge. The chisels will be freshly sharpened for this part of the test.
2 Stop watches will be used and the time averaged.
There will be 3 Timed runs and the time averaged.
On the longevity of sharpness test, the time will start from the first application of the tool to the timber.
In the sharpening part of the test it will be timed from having the tool and jigs on the bench to when they are set down again. Jigs will be set at correct settings prior to sharpening but they will not be fitted to the chisels.
Red Gum will also be used for the "finish" test but we will also use Pine as some Red Gum can be real cranky grained.
The chisels will be:
A 1" Henry Taylor HSS.
A 1" Bohler S700 tool steel.
A Carbon steel chisel.
Erns.
Sharpening.
1: Freehand on a Blue Max wheel.
2: Ditto then honed on a Norton combination stone.
3: Freehand on a 120# wheel.
4: Ditto then honed on a Norton combination stone.
5: Woodcut jig on the Blue Max.
6: Ditto then honed on a Norton combination stone.
7: Unijig on the 120#
8: Ditto then honed on a Norton combination stone.
9: On a Tormek with the Standard wheel (grey)
10: Ditto then honed on the leather wheel.
11: On a Tormek with a Black wheel.
12: Ditto then honed on the leather wheel.
13: On a Tormek with the 4000# wheel.
13: Erns method.
This is the criteria I will be following for the test.
The test will involve roughing a 250mm x 75mm piece of Red Gum to a cylinder, a peeling cut to form a spigot approximately 25mm in diameter and 15mm long in one end,the other end will be rounded over. as many 12mm beads that the chisel will do along the remaining length.
Should the chisel still not be blunt, the beads will be removed by a peeling cut, the cylinder trued and more beads cut.
The "finish cut" will be performed after the above with the cylinder trued with a roughing gouge. The chisels will be freshly sharpened for this part of the test.
2 Stop watches will be used and the time averaged.
There will be 3 Timed runs and the time averaged.
On the longevity of sharpness test, the time will start from the first application of the tool to the timber.
In the sharpening part of the test it will be timed from having the tool and jigs on the bench to when they are set down again. Jigs will be set at correct settings prior to sharpening but they will not be fitted to the chisels.
Red Gum will also be used for the "finish" test but we will also use Pine as some Red Gum can be real cranky grained.
The chisels will be:
A 1" Henry Taylor HSS.
A 1" Bohler S700 tool steel.
A Carbon steel chisel.
Erns.
Sharpening.
1: Freehand on a Blue Max wheel.
2: Ditto then honed on a Norton combination stone.
3: Freehand on a 120# wheel.
4: Ditto then honed on a Norton combination stone.
5: Woodcut jig on the Blue Max.
6: Ditto then honed on a Norton combination stone.
7: Unijig on the 120#
8: Ditto then honed on a Norton combination stone.
9: On a Tormek with the Standard wheel (grey)
10: Ditto then honed on the leather wheel.
11: On a Tormek with a Black wheel.
12: Ditto then honed on the leather wheel.
13: On a Tormek with the 4000# wheel.
13: Erns method.