The Raptor Setup Tools thread is getting a bit long, so I will start anew.
John Lucas described a method of using various-length blocks to effectively change the V-arm position of the Vari-grind system to obtain desired nose angles on gouges. I use a different method to achieve the same end results. To me it seems to have some minor advantages.
Instead of using a fixed V-arm position and shimming inside the cup with a wood block to set a particular nose angle, I shim the space between the V-arm and the v-arm support. I use pieces of PVC pipe of lengths necessary to obtain the various desired nose angles. Each is slotted lengthwise to attain a snap fit over the V-arm. Three-quarter inch PVC is the best size, but one-inch PVC will work. I mark the corresponding nose angle on each piece using a marker pen.
Some of the minor advantages of this method are:
There is no practical limit to the range of nose angles that can be accommodated, whereas the length of the V-arm cup sets a limit on the range of nose angles that can be obtained by the block method with a single V-arm setting.
The PVC shim is firmly attached to the V-arm and cannot be accidenatly dislodged while grinding.
The white PVC shims will not get lost in the shavings if dropped.
John Lucas described a method of using various-length blocks to effectively change the V-arm position of the Vari-grind system to obtain desired nose angles on gouges. I use a different method to achieve the same end results. To me it seems to have some minor advantages.
Instead of using a fixed V-arm position and shimming inside the cup with a wood block to set a particular nose angle, I shim the space between the V-arm and the v-arm support. I use pieces of PVC pipe of lengths necessary to obtain the various desired nose angles. Each is slotted lengthwise to attain a snap fit over the V-arm. Three-quarter inch PVC is the best size, but one-inch PVC will work. I mark the corresponding nose angle on each piece using a marker pen.
Some of the minor advantages of this method are:
There is no practical limit to the range of nose angles that can be accommodated, whereas the length of the V-arm cup sets a limit on the range of nose angles that can be obtained by the block method with a single V-arm setting.
The PVC shim is firmly attached to the V-arm and cannot be accidenatly dislodged while grinding.
The white PVC shims will not get lost in the shavings if dropped.
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